Ceramics International最新文献

英文中文

Comprehensive analysis of the impact of iron and terbium co-dopant levels on the structural, thermal, and spectroscopic properties of hydroxyapatite

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.095

Omer Kaygili , Yusuf Düşkün , Azeez A. Barzinjy , Rebaz Obaid Kareem , Tankut Ates , Serhat Keser , Beyhan Tatar , Aenas Laith Ali , Niyazi Bulut , Filiz Ercan , İsmail Ercan , Turan İnce

In recent years, there has been a growing interest in biomaterials for improving human living conditions. Hydroxyapatite (HAp), a biomaterial widely used in bone and teeth restoration, has been doped with iron (Fe) and terbium (Tb) to enhance its electronic properties and potential biomedical applications. Theoretical calculations revealed a decreasing trend in bandgap values with increasing concentrations of Fe and Tb, suggesting a shift from insulating to semiconducting behavior. The synthesized Fe and Tb doped HAp samples were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The results showed that the addition of Fe and Tb dopants led to changes in the lattice parameters, crystallinity, and morphology of HAp structure. The doped HAp samples exhibited improved thermal stability, and their FTIR and Raman spectra confirmed the presence of the phosphate group. SEM analysis revealed sphere-like nanoparticles and EDX results confirmed the presence of Fe and Tb in the doped samples. The (Ca + Tb + Fe)/P molar ratios were close to the ideal value of 1.667. The study demonstrates the potential of Fe and Tb-doped HAp as multifunctional materials in biomedicine and other fields requiring tunable electrical properties.

{"title":"Comprehensive analysis of the impact of iron and terbium co-dopant levels on the structural, thermal, and spectroscopic properties of hydroxyapatite","authors":"Omer Kaygili , Yusuf Düşkün , Azeez A. Barzinjy , Rebaz Obaid Kareem , Tankut Ates , Serhat Keser , Beyhan Tatar , Aenas Laith Ali , Niyazi Bulut , Filiz Ercan , İsmail Ercan , Turan İnce","doi":"10.1016/j.ceramint.2025.01.095","DOIUrl":"10.1016/j.ceramint.2025.01.095","url":null,"abstract":"<div><div>In recent years, there has been a growing interest in biomaterials for improving human living conditions. Hydroxyapatite (HAp), a biomaterial widely used in bone and teeth restoration, has been doped with iron (Fe) and terbium (Tb) to enhance its electronic properties and potential biomedical applications. Theoretical calculations revealed a decreasing trend in bandgap values with increasing concentrations of Fe and Tb, suggesting a shift from insulating to semiconducting behavior. The synthesized Fe and Tb doped HAp samples were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The results showed that the addition of Fe and Tb dopants led to changes in the lattice parameters, crystallinity, and morphology of HAp structure. The doped HAp samples exhibited improved thermal stability, and their FTIR and Raman spectra confirmed the presence of the phosphate group. SEM analysis revealed sphere-like nanoparticles and EDX results confirmed the presence of Fe and Tb in the doped samples. The (Ca + Tb + Fe)/P molar ratios were close to the ideal value of 1.667. The study demonstrates the potential of Fe and Tb-doped HAp as multifunctional materials in biomedicine and other fields requiring tunable electrical properties.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 10","pages":"Pages 12534-12553"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of LMT doping on microstructure and electrical properties of BCZT ceramics

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.098

J.H. Li, X.N. Shi, Y.H. Zhang, J.Y. Li, D.H. Shao, T.K. Liang, S.Q. Wang, Z.Y. Yang, Y. Chen, Y.F. Wang, F. Yang

In this study, (1-x)Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃-xLa(Mg_0.5Ti_0.5)O₃ ((1-x)BCZT-xLMT) (x = 0 %, 1 %, 3 %, 7 %) ceramics were prepared by solid-state method, and the effects of LMT contents on the structure and electrical properties for BCZT lead-free ceramics were explored. XRD results indicate that the prepared ceramics show a uniform perovskite structure with no impurities, which suggests that LMT is completely soluble in BCZT ceramics, forming a solid solution. SEM results show that the grain size of the prepared ceramics undergoes the initial increase and subsequent decrease with the increasing LMT content. Additionally, the addition of LMT results in a decrease in the Curie temperature, widening of the dielectric peak, and occurrence of dispersion phase transition. The hysteresis loop of the samples transformed from ferroelectric into relaxor ferroelectric, which results in a slimmer hysteresis loop, leading to the significant reduction in energy storage loss and the improvement in energy storage efficiency. When the doping amount is 3 %, the prepared ceramic shows the energy storage density of 0.67 J/cm³ and the energy storage efficiency of 83.1 % under the electric field of 90 kV/cm. Based on the experimental results, it can be seen that the formation of solid solution could greatly help to improve the energy storage performance, which provides a new idea for the lead-free ceramics.

{"title":"Effect of LMT doping on microstructure and electrical properties of BCZT ceramics","authors":"J.H. Li, X.N. Shi, Y.H. Zhang, J.Y. Li, D.H. Shao, T.K. Liang, S.Q. Wang, Z.Y. Yang, Y. Chen, Y.F. Wang, F. Yang","doi":"10.1016/j.ceramint.2025.01.098","DOIUrl":"10.1016/j.ceramint.2025.01.098","url":null,"abstract":"<div><div>In this study, (1-x)Ba<sub>0.85</sub>Ca<sub>0.15</sub>Zr<sub>0.1</sub>Ti<sub>0.9</sub>O<sub>3</sub>-xLa(Mg<sub>0.5</sub>Ti<sub>0.5</sub>)O<sub>3</sub> ((1-x)BCZT-xLMT) (x = 0 %, 1 %, 3 %, 7 %) ceramics were prepared by solid-state method, and the effects of LMT contents on the structure and electrical properties for BCZT lead-free ceramics were explored. XRD results indicate that the prepared ceramics show a uniform perovskite structure with no impurities, which suggests that LMT is completely soluble in BCZT ceramics, forming a solid solution. SEM results show that the grain size of the prepared ceramics undergoes the initial increase and subsequent decrease with the increasing LMT content. Additionally, the addition of LMT results in a decrease in the Curie temperature, widening of the dielectric peak, and occurrence of dispersion phase transition. The hysteresis loop of the samples transformed from ferroelectric into relaxor ferroelectric, which results in a slimmer hysteresis loop, leading to the significant reduction in energy storage loss and the improvement in energy storage efficiency. When the doping amount is 3 %, the prepared ceramic shows the energy storage density of 0.67 J/cm<sup>3</sup> and the energy storage efficiency of 83.1 % under the electric field of 90 kV/cm. Based on the experimental results, it can be seen that the formation of solid solution could greatly help to improve the energy storage performance, which provides a new idea for the lead-free ceramics.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 10","pages":"Pages 12577-12586"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy transfer mediated single-component white light emission in a novel Bi3+/Eu3+ co-doped Sr2Ga2GeO7 phosphor for white LEDs

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.052

Yi Zhang, Peng Wang, Bibo Lou, Shengjie Niu, Haonian Bai, Dan Zhang, Chong-Geng Ma

To fulfill the escalating demand for high-quality white lighting, the exploration of novel and advanced luminescent materials holds a significant role in addressing the issues of reabsorption, color bleaching and deviation in modern WLED solid-state lighting technology based on phosphor-converted materials. In this research, a series of novel Bi³⁺-activated gallium-germanate luminescent materials Sr₂Ga₂GeO₇ (SGGO): Bi³⁺ were synthesized by means of the classic high-temperature solid-phase method. A comprehensive exploration of their crystal structure, electronic structure, and optical transition properties were conducted through a combined experimental and theoretical calculation analysis. The research outcomes suggest that Bi³⁺, which is prone to occupying Sr sites, shows a remarkable blue emission with a peak at approximately 450 nm throughout the entire spectral range from near ultraviolet (UV) to near infrared when excited at 315 nm, and this is attributed to the ³P₁→¹S₀ transition. Additionally, by devising an efficient energy transfer strategy from Bi³⁺ to Eu³⁺, single-component white light can be attained by merely adjusting the doping concentration of Eu³⁺ in the SGGO: Bi³⁺, Eu³⁺ co-activation system. Eventually, devices packaged based on 310 nm ultraviolet chips also demonstrate the potential application of the synthesized material in WLEDs. These findings contribute to a deeper understanding of the luminescence and energy transfer mechanisms of Bi³⁺-activated systems, and also offer essential guidance for the advancement of high-performance Bi³⁺-doped advanced light-conversion materials and effective materials for various applications demanding enhanced light conversion properties.

{"title":"Energy transfer mediated single-component white light emission in a novel Bi3+/Eu3+ co-doped Sr2Ga2GeO7 phosphor for white LEDs","authors":"Yi Zhang, Peng Wang, Bibo Lou, Shengjie Niu, Haonian Bai, Dan Zhang, Chong-Geng Ma","doi":"10.1016/j.ceramint.2025.01.052","DOIUrl":"10.1016/j.ceramint.2025.01.052","url":null,"abstract":"<div><div>To fulfill the escalating demand for high-quality white lighting, the exploration of novel and advanced luminescent materials holds a significant role in addressing the issues of reabsorption, color bleaching and deviation in modern WLED solid-state lighting technology based on phosphor-converted materials. In this research, a series of novel Bi<sup>3+</sup>-activated gallium-germanate luminescent materials Sr<sub>2</sub>Ga<sub>2</sub>GeO<sub>7</sub> (SGGO): Bi<sup>3+</sup> were synthesized by means of the classic high-temperature solid-phase method. A comprehensive exploration of their crystal structure, electronic structure, and optical transition properties were conducted through a combined experimental and theoretical calculation analysis. The research outcomes suggest that Bi<sup>3+</sup>, which is prone to occupying Sr sites, shows a remarkable blue emission with a peak at approximately 450 nm throughout the entire spectral range from near ultraviolet (UV) to near infrared when excited at 315 nm, and this is attributed to the <sup>3</sup>P<sub>1</sub>→<sup>1</sup>S<sub>0</sub> transition. Additionally, by devising an efficient energy transfer strategy from Bi<sup>3+</sup> to Eu<sup>3+</sup>, single-component white light can be attained by merely adjusting the doping concentration of Eu<sup>3+</sup> in the SGGO: Bi<sup>3+</sup>, Eu<sup>3+</sup> co-activation system. Eventually, devices packaged based on 310 nm ultraviolet chips also demonstrate the potential application of the synthesized material in WLEDs. These findings contribute to a deeper understanding of the luminescence and energy transfer mechanisms of Bi<sup>3+</sup>-activated systems, and also offer essential guidance for the advancement of high-performance Bi<sup>3+</sup>-doped advanced light-conversion materials and effective materials for various applications demanding enhanced light conversion properties.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 9","pages":"Pages 12009-12018"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-temperature evolution of microstructure, electrical properties and transverse thermoelectric performance in La1-xCaxMnO3 thin films

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.153

Xi Chen , Bowan Tao , Ruipeng Zhao , Kai Yang , Zhenzhe Li , Tian Xie , Mingyuan Zhao , Guoliang Ming , Yuhang Yu , Hongbo Tian , Chang Wei , Hongxu Zhu , Yudong Xia

High-frequency heat flux measurement is vital for the design of the hypersonic vehicle thermal protection system. La_1-xCa_xMnO₃ (LCMO) thin-film heat flux sensor based on the transverse thermoelectric effect has significant advantages due to its high-frequency response characteristics. Aiming at extremely high-temperature environments, the high-temperature evolution of microstructure and transverse thermoelectric performance of LCMO thin film are revealed. With the heat treatment temperature not beyond 1300 °C, LCMO can maintain stable electrical properties and transverse thermoelectric properties, with a sensitivity of ∼8 μV/(kW/m²) and response frequency of ∼220 kHz. With the increase in temperature, the electrical properties of LCMO thin films gradually deteriorate due to atom diffusion, aggregation and escape, so the response speed slows. But LCMO still maintains normal transverse thermoelectric properties after heat treatment with 1450 °C for 1 h, showing strong survivability. This work lays a foundation for developing and applying high-temperature LCMO thin-film heat flux sensors.

{"title":"High-temperature evolution of microstructure, electrical properties and transverse thermoelectric performance in La1-xCaxMnO3 thin films","authors":"Xi Chen , Bowan Tao , Ruipeng Zhao , Kai Yang , Zhenzhe Li , Tian Xie , Mingyuan Zhao , Guoliang Ming , Yuhang Yu , Hongbo Tian , Chang Wei , Hongxu Zhu , Yudong Xia","doi":"10.1016/j.ceramint.2025.01.153","DOIUrl":"10.1016/j.ceramint.2025.01.153","url":null,"abstract":"<div><div>High-frequency heat flux measurement is vital for the design of the hypersonic vehicle thermal protection system. La<sub>1-x</sub>Ca<sub>x</sub>MnO<sub>3</sub> (LCMO) thin-film heat flux sensor based on the transverse thermoelectric effect has significant advantages due to its high-frequency response characteristics. Aiming at extremely high-temperature environments, the high-temperature evolution of microstructure and transverse thermoelectric performance of LCMO thin film are revealed. With the heat treatment temperature not beyond 1300 °C, LCMO can maintain stable electrical properties and transverse thermoelectric properties, with a sensitivity of ∼8 μV/(kW/m<sup>2</sup>) and response frequency of ∼220 kHz. With the increase in temperature, the electrical properties of LCMO thin films gradually deteriorate due to atom diffusion, aggregation and escape, so the response speed slows. But LCMO still maintains normal transverse thermoelectric properties after heat treatment with 1450 °C for 1 h, showing strong survivability. This work lays a foundation for developing and applying high-temperature LCMO thin-film heat flux sensors.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 10","pages":"Pages 13069-13076"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The mechanical and biological performance of zinc-containing micro-arc oxidation film on titanium implant

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.155

Jianghui Zhao , Lei Liu , Fengcang Ma , Ping Liu , Shengcai Qi , Wei Li , Ke Zhang , Xiaohong Chen

Titanium is extensively utilized in orthopedic and dental implants within contemporary medicine; however, shortcomings in its ability to resist bacterial infection and promote osseointegration often result in surgical failures. To address these shortcomings, this study prepared ceramic oxide films with varying zinc concentrations on TA4 substrates through one-step microarc oxidation. The microstructure, elemental composition, chemical characteristics, and corrosion resistance of the coatings were thoroughly investigated. The antimicrobial activity and biocompatibility of the films were assessed using antimicrobial tests and hydroxyapatite induction tests. The results indicate that the films exhibit a distinctive "volcano-like" porous morphology, primarily composed of anatase, rutile, and titanium phases. Notably, the incorporation of zinc into the electrolyte did not significantly alter the microstructure or physicochemical performance of the films. In vitro antimicrobial tests demonstrated that the incorporation of zinc significantly improved the antimicrobial performance of the films. Specifically, the antimicrobial activity of Ti-0.05Zn, Ti-0.1Zn, and Ti-0.25Zn against Staphylococcus aureus was measured at 25.5 %, 60.3 %, and 75.5 %, respectively. Additionally, the antimicrobial activity of the films against Porphyromonas gingivalis was recorded at 18.3 %, 51.7 %, and 92.8 %, respectively. Furthermore, the antimicrobial performance of the zinc-containing films remained relatively stable after 7 days of immersion in simulated body fluids, with hydroxyapatite particles forming on the surface, indicating that the films possess a degree of long-term antimicrobial capacity and exhibit favorable biocompatibility.

{"title":"The mechanical and biological performance of zinc-containing micro-arc oxidation film on titanium implant","authors":"Jianghui Zhao , Lei Liu , Fengcang Ma , Ping Liu , Shengcai Qi , Wei Li , Ke Zhang , Xiaohong Chen","doi":"10.1016/j.ceramint.2025.01.155","DOIUrl":"10.1016/j.ceramint.2025.01.155","url":null,"abstract":"<div><div>Titanium is extensively utilized in orthopedic and dental implants within contemporary medicine; however, shortcomings in its ability to resist bacterial infection and promote osseointegration often result in surgical failures. To address these shortcomings, this study prepared ceramic oxide films with varying zinc concentrations on TA4 substrates through one-step microarc oxidation. The microstructure, elemental composition, chemical characteristics, and corrosion resistance of the coatings were thoroughly investigated. The antimicrobial activity and biocompatibility of the films were assessed using antimicrobial tests and hydroxyapatite induction tests. The results indicate that the films exhibit a distinctive \"volcano-like\" porous morphology, primarily composed of anatase, rutile, and titanium phases. Notably, the incorporation of zinc into the electrolyte did not significantly alter the microstructure or physicochemical performance of the films. <em>In vitro</em> antimicrobial tests demonstrated that the incorporation of zinc significantly improved the antimicrobial performance of the films. Specifically, the antimicrobial activity of Ti-0.05Zn, Ti-0.1Zn, and Ti-0.25Zn against <em>Staphylococcus aureus</em> was measured at 25.5 %, 60.3 %, and 75.5 %, respectively. Additionally, the antimicrobial activity of the films against <em>Porphyromonas gingivalis</em> was recorded at 18.3 %, 51.7 %, and 92.8 %, respectively. Furthermore, the antimicrobial performance of the zinc-containing films remained relatively stable after 7 days of immersion in simulated body fluids, with hydroxyapatite particles forming on the surface, indicating that the films possess a degree of long-term antimicrobial capacity and exhibit favorable biocompatibility.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 10","pages":"Pages 13090-13099"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Penetration resistance of ceramic composite structures with a double arrowhead honeycombs interlayer against projectile impact

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.019

Xin Sun , Xingyuan Zhang , Huan Yan , Longhui Zhang , Yongxiang Dong

A double arrowhead honeycomb (DAH) is a mechanical metamaterial with a high plateau strength. In this study, we optimized the DAH for incorporation into ceramic composite structures to improve the penetration resistance performance. For the same areal density, the penetration resistance performance of this ceramic composite structure with DAHs was 30 % higher than that of the structure without DAHs. Under high-velocity impact, the DAHs in the ceramic structure exhibited a row-by-row localized deformation, with several significant drops in the plateau strength and failure of each row corresponding to a drop. During the row-by-row deformation process, the loading was transferred downward row-by-row; consequently, the back plate remained undeformed until the DAHs were fully compacted, thus maintaining the integrity of the overall structure. Notably, the DAHs significantly prolonged the duration time of the projectile dwelling on the surface of the ceramic during the interface defeat process, thereby expanding the range of the loading distribution within the ceramic tiles and enhancing energy absorption. In addition, the downward-moving ceramic tiles exhibited further enhanced energy absorption by dispersing the kinetic energy of the projectile to the moving ceramic fragments. The penetration resistance mechanisms indicate that ceramic composite structures with DAHs are effective for optimizing lightweight, protective structures.

{"title":"Penetration resistance of ceramic composite structures with a double arrowhead honeycombs interlayer against projectile impact","authors":"Xin Sun , Xingyuan Zhang , Huan Yan , Longhui Zhang , Yongxiang Dong","doi":"10.1016/j.ceramint.2025.01.019","DOIUrl":"10.1016/j.ceramint.2025.01.019","url":null,"abstract":"<div><div>A double arrowhead honeycomb (DAH) is a mechanical metamaterial with a high plateau strength. In this study, we optimized the DAH for incorporation into ceramic composite structures to improve the penetration resistance performance. For the same areal density, the penetration resistance performance of this ceramic composite structure with DAHs was 30 % higher than that of the structure without DAHs. Under high-velocity impact, the DAHs in the ceramic structure exhibited a row-by-row localized deformation, with several significant drops in the plateau strength and failure of each row corresponding to a drop. During the row-by-row deformation process, the loading was transferred downward row-by-row; consequently, the back plate remained undeformed until the DAHs were fully compacted, thus maintaining the integrity of the overall structure. Notably, the DAHs significantly prolonged the duration time of the projectile dwelling on the surface of the ceramic during the interface defeat process, thereby expanding the range of the loading distribution within the ceramic tiles and enhancing energy absorption. In addition, the downward-moving ceramic tiles exhibited further enhanced energy absorption by dispersing the kinetic energy of the projectile to the moving ceramic fragments. The penetration resistance mechanisms indicate that ceramic composite structures with DAHs are effective for optimizing lightweight, protective structures.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 9","pages":"Pages 11649-11664"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing the corrosion resistance of cemented carbides using CoCrNi binders in simulated drilling fluids

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.023

Jiayi Liu , Kaiyuan Hao , Ruonan Zhou , Xuelian Xiao , Guoming Yuan , Kai Xu , Ming Lou , Keke Chang

As critical surface strengthening materials for drilling tools, the cemented carbides have been observed to suffer from severe corrosion in alkaline drilling fluids. To address such issue, we designed novel WC-based cemented carbides incorporating multi-principal element alloy binders, CoCrNi, based on thermodynamic calculations, and synthesized them via vacuum sintering. The corrosion behaviors of WC-CoCrNi in simulated drilling fluids were assessed via polarization and microelectrochemistry tests, with the WC-Co used as reference. The results showed that the WC-CoCrNi exhibited reduced corrosion current densities by ∼70 % and an improved polarization resistance by an order of magnitude. Such improvement was attributed to the solid-solution of Cr and Ni in Co, which decreased the potential difference between ceramic and metallic phases thus mitigated the galvanic corrosion tendency. The corrosion product layers on the WC-CoCrNi surfaces, in addition, mainly consisted of Cr₂O₃, NiO and Ni(OH)₂, also contributing to corrosion protection. Therefore, the current work demonstrates the viability to obtain corrosion-resistant cemented carbides through the thermodynamic design of binder compositions.

{"title":"Enhancing the corrosion resistance of cemented carbides using CoCrNi binders in simulated drilling fluids","authors":"Jiayi Liu , Kaiyuan Hao , Ruonan Zhou , Xuelian Xiao , Guoming Yuan , Kai Xu , Ming Lou , Keke Chang","doi":"10.1016/j.ceramint.2025.01.023","DOIUrl":"10.1016/j.ceramint.2025.01.023","url":null,"abstract":"<div><div>As critical surface strengthening materials for drilling tools, the cemented carbides have been observed to suffer from severe corrosion in alkaline drilling fluids. To address such issue, we designed novel WC-based cemented carbides incorporating multi-principal element alloy binders, CoCrNi, based on thermodynamic calculations, and synthesized them via vacuum sintering. The corrosion behaviors of WC-CoCrNi in simulated drilling fluids were assessed via polarization and microelectrochemistry tests, with the WC-Co used as reference. The results showed that the WC-CoCrNi exhibited reduced corrosion current densities by ∼70 % and an improved polarization resistance by an order of magnitude. Such improvement was attributed to the solid-solution of Cr and Ni in Co, which decreased the potential difference between ceramic and metallic phases thus mitigated the galvanic corrosion tendency. The corrosion product layers on the WC-CoCrNi surfaces, in addition, mainly consisted of Cr<sub>2</sub>O<sub>3</sub>, NiO and Ni(OH)<sub>2</sub>, also contributing to corrosion protection. Therefore, the current work demonstrates the viability to obtain corrosion-resistant cemented carbides through the thermodynamic design of binder compositions.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 9","pages":"Pages 11690-11701"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of transparent and durable antimony tin oxide coatings based on spectrum-selective transmittance for thermal insulation by regulating dispersion

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.165

Hanwen Zhu , Xiang Li , Qingge Feng , Fanghong Qin , Jing Sun , Shuyu Yuan , Xingyu Deng , Hongxing Zhu , Ke Xu

Primary energy consumption in buildings is mainly attributed to heat exchange through windows. However, developing transparent and durable thermal insulation coatings for practical applications remains challenging. Therefore, based on the spectrally selective transmittance mechanism, a transparent antimony tin oxide (ATO) inorganic coating for thermal insulation is presented using a simple blending method with low melting point glass powder. The visible light (VIS) transmission and near-infrared (NIR) shielding of the coating reaches 73.33 % and 61.87 %, respectively, under the ball-milling at 200 rpm for 60 min with ATO content of 0.3 g and calcination temperature of 700 °C. The optimized ball-milling pre-blending benefitted the transformation into smaller particle sizes and coating dispersion—crucial for affecting the spectral selective transmittance of the coating. The mechanism of introducing the low-melting-point glass powder, whose cross-linking with ATO by bridging oxygen conduces the disintegration and polymerization of the glass mesh to a denser network structure, was explored. The coating exhibited good durability and stability against abrasion for at least 150 cycles, acid and alkali resistance within 28 d, sunlight exposure, and heat treatment at 105 °C with nearly no change in the light-selective transmittance. The water resistance of the coating was also excellent, indicating the expanded potential of inorganic coatings for outdoor applications. Additionally, the temperature difference between the coated glass in the device and the uncoated glass reached up to 5.2 °C. This study provides a reference for preparing stable and transparent thermal insulation coatings.

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引用次数: 0

Effect of Li2CO3 on the preparation and performance of lightweight building ceramsite from oil-based drilling cutting pyrolysis residues

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.168

Hongjuan Wang , Jing Li , Guobing Jiang , Tian Meng , Wei Zhou , Jieyue Zheng , Hongwu Liu , Hongxian Chen , Yuanyi Yang

In order to achieve promising performance and ensure a high utilization rate of oil-based drilling cuttings pyrolysis residues (ODCPRs) for fabricating the lightweight building ceramsite, Li₂CO₃ was employed as a novel sintering additive during the sintering process in this work. The influence of Li₂CO₃ addition on the bulk density, apparent density, expansion rate, 1 h water absorption, compressive strength and pore structure of the ODCPRs-based lightweight building ceramsite under different sintering temperatures were comprehensively studied. Furthermore, the high-temperature phase evolution mechanism and pore structure analysis of the ODCPRs-based lightweight building ceramsite were deeply discussed by the means of the thermal analysis high-temperature phase analysis and Micro-CT. The research findings suggested that the incorporation of Li₂CO₃ as a sintering additive can reduce the density and foaming temperature of ceramsite, while enhance substrate strength and facilitate the formation of low-temperature liquid phase of ceramsite. Attributed to the disparity in ionic radii between Li⁺ and Al³⁺, defect reactions will occur within the celsian crystal structure, thus reducing the activation energy for solid-phase reactions and effectively promoting their occurrence. Consequently, this effect would facilitate the formation of celsian crystals in ceramsite, and the obtained ODCPRs-based lightweight building ceramsite demonstrated desirable performance characterized by a relatively lower density, enhanced mechanical properties, and increased porosity. Thus, above findings has provided valuable insights for the utilization of recycled oil-based drilling cuttings.

{"title":"Effect of Li2CO3 on the preparation and performance of lightweight building ceramsite from oil-based drilling cutting pyrolysis residues","authors":"Hongjuan Wang , Jing Li , Guobing Jiang , Tian Meng , Wei Zhou , Jieyue Zheng , Hongwu Liu , Hongxian Chen , Yuanyi Yang","doi":"10.1016/j.ceramint.2025.01.168","DOIUrl":"10.1016/j.ceramint.2025.01.168","url":null,"abstract":"<div><div>In order to achieve promising performance and ensure a high utilization rate of oil-based drilling cuttings pyrolysis residues (ODCPRs) for fabricating the lightweight building ceramsite, Li<sub>2</sub>CO<sub>3</sub> was employed as a novel sintering additive during the sintering process in this work. The influence of Li<sub>2</sub>CO<sub>3</sub> addition on the bulk density, apparent density, expansion rate, 1 h water absorption, compressive strength and pore structure of the ODCPRs-based lightweight building ceramsite under different sintering temperatures were comprehensively studied. Furthermore, the high-temperature phase evolution mechanism and pore structure analysis of the ODCPRs-based lightweight building ceramsite were deeply discussed by the means of the thermal analysis high-temperature phase analysis and Micro-CT. The research findings suggested that the incorporation of Li<sub>2</sub>CO<sub>3</sub> as a sintering additive can reduce the density and foaming temperature of ceramsite, while enhance substrate strength and facilitate the formation of low-temperature liquid phase of ceramsite. Attributed to the disparity in ionic radii between Li<sup>+</sup> and Al<sup>3+</sup>, defect reactions will occur within the celsian crystal structure, thus reducing the activation energy for solid-phase reactions and effectively promoting their occurrence. Consequently, this effect would facilitate the formation of celsian crystals in ceramsite, and the obtained ODCPRs-based lightweight building ceramsite demonstrated desirable performance characterized by a relatively lower density, enhanced mechanical properties, and increased porosity. Thus, above findings has provided valuable insights for the utilization of recycled oil-based drilling cuttings.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 10","pages":"Pages 13237-13252"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical, low temperature degradation and biocompatibility of Ce-doped dental 3Y-TZP ceramics

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International

Pub Date : 2025-04-01 DOI: 10.1016/j.ceramint.2025.01.173

Shao-hua Luo , Xiaolong Li , Zihan Wang , Shengxue Yan , Jianguang Chen

3Y-TZP is a high-performance advanced ceramic material, which has a wide range of applications in industrial and biomedical fields. However, 3Y-TZP ceramics may face the problem of low-temperature aging due to this, which limits its development in the medical field. This study is aimed at investigating the effect of a certain amount of CeO₂ doping on the overall properties of 3Y-TZP ceramics. The 3Y-TZP powder was prepared using the co-precipitation method. Subsequently it was mixed with various proportions of cerium oxide powder. The fitting results using the Johnson-Mehl-Avramorow-Kolmogorov (JMAK) equation indicated that CeO₂ doping was a useful addition to enhance its anti-ageing properties. The modified material was found to have good biocompatibility, which suggests a promising outlook for its development in the field of dentistry.

引用次数: 0

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