Materials Chemistry and Physics最新文献

{"title":"Influence of the structural disorder and applied bias voltage variations on the hopping conduction mechanisms, scattering processes, and temperature coefficient of resistance characteristics of Sm0.55-xPrxSr0.45MnO3 (0≤x≤0.4) ceramics","authors":"Y. Moualhi,&nbsp;H. Rahmouni","doi":"10.1016/j.matchemphys.2024.130185","DOIUrl":"10.1016/j.matchemphys.2024.130185","url":null,"abstract":"<div><div>The influence of the Praseodymium content and the applied bias voltage on the structural properties, scattering processes, electrical conduction, and the temperature coefficient of resistance characteristics of Sm_0.55-xPr_xSr_0.45MnO₃ (0.0≤x ≤ 0.4) ceramics has been discussed. At room temperature, the refined X-ray diffraction data confirmed that the prepared compounds crystallize in the distorted orthorhombic system with a Pbnm space group. In addition, the structural study proves the single-phase nature of all the substituted Sm_0.55-xPr_xSr_0.45MnO₃ (0.1≤x ≤ 0.4) compounds without any detectable impurities. By increasing the Praseodymium content, it is observed that the A-site cationic size disorder has decreased from <em>σ</em>² (x = 0.0) = 8.019 × 10⁻³ Å² to <em>σ</em>² (x = 0.4) = 5.3602 × 10⁻³ Å². The electrical resistivity study confirmed the strong impact of cationic disorder variation on the dynamics of charge carriers and Mn–Mn cation interactions. It is worth mentioning that all of the prepared compounds demonstrate maximum resistivity at a well-defined transition temperature T_M-S. The transition temperature has shifted towards 240 K for x = 0.4, indicating a clear trend in the data. Below T_M-S, the metallic behavior of the materials is related to the electron bandwidth competition and size disorder effects. The aforementioned effects are being examined concerning the scattering processes between electron, phonon, and magnon interactions. Beyond T_M-S, the electrical resistivity decrease has been attributed to the electron bandwidth increase. The enhanced conduction and the appearance of a semiconductor behavior have been attributed to the activation of the small polaron hopping and variable range hopping mechanisms. The results show that the studied ceramics exhibit both positive and negative temperature coefficient of resistance (TCR) characteristics that depend mainly on the cationic disorder and the bias voltage effects. The maximum TCR value has been observed for Sm_0.45Pr_0.1Sr_0.45MnO₃ after applying a bias voltage value of 1V.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"332 ","pages":"Article 130185"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boosting the NOx reduction and C3H8 oxidation of the Pd-based core-shell TWC in a water-added environment through dispersed treatment","authors":"Yun-Ting Wang ,&nbsp;Kui-Hao Chuang ,&nbsp;Wei-Jing Li ,&nbsp;Ming-Yen Wey","doi":"10.1016/j.matchemphys.2024.130166","DOIUrl":"10.1016/j.matchemphys.2024.130166","url":null,"abstract":"<div><div>Water molecules are one of the main impurities in automobile exhaust that will affect the efficiency of three-way catalyst (TWC). Therefore, 600d-Pd@Ce/ACH (the dispersed core-shell active site is obtained by 600 °C calcination and loaded with the alkaline-carbonized halloysite support) with great activity and high water-resistance is designed by dispersed treatment and support modification. The result of XPS indicates that 600d-Pd@Ce/ACH with a higher amount of Ce³⁺ and a lower proportion of Pd²⁺ facilitate the TWC activity and water-resistance ability, respectively. On the other hand, the catalyst with a certain intensity of hydroxyl groups can enhance the CO oxidation and whole TWC activity, which can be observed in FTIR analysis. Thus, compared to Pd@Ce/H∗ (the catalyst without modification; the star symbol (∗) indicates that the TWC activity test was conducted in a water-added environment), the T₅₀ of NO_x and C₃H₈ for 600d-Pd@Ce/ACH∗ decreases by 156 °C and 137 °C, respectively. Therefore, this research concludes that the generation of functional groups influences TWC mechanisms, leading to competitive adsorption or improved water resistance. Hence, this research provides a promising approach to improve the water-resistance of the core-shell TWC and verifies the reaction mechanism by XPS and FTIR analysis.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"331 ","pages":"Article 130166"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cyclic stress-strain behavior and microstructural features in copper-Cu50Zr50 metallic glass core-shell structures: Molecular dynamics and deep machine learning predictions","authors":"Ganesh Katakareddi,&nbsp;Kerfegarshahvir Jungalwala,&nbsp;Natraj Yedla","doi":"10.1016/j.matchemphys.2024.130183","DOIUrl":"10.1016/j.matchemphys.2024.130183","url":null,"abstract":"<div><div>In this paper, we report the strain-controlled cyclic deformation behavior of copper-Cu₅₀Zr₅₀ metallic glass (MG) core-shell structures using the molecular dynamics (MD) simulation. Specimens with different MG shell thicknesses (12.5 Å−50 Å) and crystalline copper core thickness (50 Å) are used for the investigation. The cyclic deformations are carried out at a temperature of 300 K and strain amplitudes in the range of 0.05–0.13. With increasing MG thickness, the fatigue properties of the core-shell specimens improve. The fatigue ductility exponent is −0.45, and the fatigue strength exponent is −0.13. The deep machine learning model bidirectional long short-term memory (Bi-LSTM) is used to predict the cyclic stress-strain response of core-shell structures using the MD data. For training the model, 16,800 data points are used, comprising forty-three data sets. The model accurately predicts the cyclic behavior at all the strain amplitudes on the trained data. The R² values are in the range of 0.947–0.998 on the test data, indicating the goodness of the fit. Hence, the model can be used to predict the fatigue behavior of materials, reducing the time required for experimentation.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"331 ","pages":"Article 130183"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancement of high temperature oxidation and hot corrosion resistance behaviors of selective laser melted Ti6Al4V by ultrasonic shot peening","authors":"M. Srikanth ,&nbsp;B. Sai Charan ,&nbsp;Dasari Muthya Venu ,&nbsp;K. Venkatesan ,&nbsp;Gosipathala Sreedhar ,&nbsp;Kausik Chattopadhyay ,&nbsp;Deepak K. Pattanayak","doi":"10.1016/j.matchemphys.2024.130170","DOIUrl":"10.1016/j.matchemphys.2024.130170","url":null,"abstract":"<div><div>In the present study, Ultrasonic shot peening (USSP) method has been adopted to understand the electrochemical corrosion resistance, high temperature oxidation and hot corrosion resistance of Ti alloy (Ti6Al4V) fabricated by Selective Laser Melting (SLM) process. The results showed the significant enhancement in electrochemical corrosion resistance in 3.5 wt% NaCl, high temperature oxidation resistance and hot corrosion resistance in Na₂SO₄ + 25 % NaCl and Na₂SO₄ + 50 % V₂O₅ at 750 °C after the USSP treatment. Various characterization techniques such as Optical Microscopy, Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FE-SEM) used to characterize the high temperature oxidation as well as the hot corrosion products and the result confirms the formation of various oxide compounds such as TiO₂, Al₂O₃, V₂O₃, V₂O₅, Na₂TiO₃ etc. Grain size have been significantly reduced from 62.4 ± 6.5 to 39.3 ± 3.4 μm and it substantially improved the hardness value from 386 to 457.5 HV after USSP treatment.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"332 ","pages":"Article 130170"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the corona aging characteristics of KH570-modified nano-Al(OH)₃ cycloaliphatic epoxy resin in hygrothermal environments","authors":"Maoqiang Bi,&nbsp;Yingtai Du,&nbsp;Xiao Rao,&nbsp;Shaolan Lei,&nbsp;Xi Chen,&nbsp;Tianyan Jiang","doi":"10.1016/j.matchemphys.2024.130190","DOIUrl":"10.1016/j.matchemphys.2024.130190","url":null,"abstract":"<div><div>Cycloaliphatic epoxy(CE) resin may experience insulation degradation and pose a threat to the safe operation of equipment when used in high-temperature and high-humidity environment. Therefore, to enhance the corona aging resistance of CE under harsh conditions, this study incorporated γ-methacryloxypropyltrimethoxysilane-modified (KH570) nano-Al(OH)₃ with varying content into the CE. The samples were subjected to corona aging tests under different hygrothermal conditions. The corona aging characteristics of CE in high-temperature and high-humidity environments were analyzed using scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FTIR), resistivity, and dielectric loss measurements before and after modification. The results indicate that as humidity increases, the unmodified samples develop pores and cracks on the surface, which leads to an increased water absorption rate and internal hydrolysis. However, with the increase in filler content, the water absorption channels on the sample surface decrease, effectively suppressing chemical moisture absorption and maintaining the stability of the internal chemical structure. Among the various filler contents, the effect was most pronounced at 3%wtCE. Under 65 % RH conditions, the volume/surface resistivity increased by 27.28 % and 26.9 %, respectively, the leakage current decreased by 64.85 %, while the dry and wet breakdown voltages increased by 9.3 kV and 6.85 kV, respectively, and the dielectric loss variation with humidity was reduced. Compared to the unmodified material, KH570-modified nano-Al(OH)₃ has significantly improved the insulation and aging resistance properties of the material under hot and humid corona aging conditions. This study provides a reference for improving the performance of epoxy resins under high temperature, high humidity, and strong electric field conditions.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"332 ","pages":"Article 130190"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel ceramic materials based on industrial wastes within the CaO–MgO–Al2O3–SiO2 system","authors":"G.A. Khater ,&nbsp;M. Romero ,&nbsp;A. López-Delgado ,&nbsp;I. Padilla ,&nbsp;A.A. El-Kheshen ,&nbsp;M.M. Farag ,&nbsp;M.S. Elmaghraby ,&nbsp;N.H.S. Nasralla ,&nbsp;Hussain Shendy","doi":"10.1016/j.matchemphys.2024.130178","DOIUrl":"10.1016/j.matchemphys.2024.130178","url":null,"abstract":"<div><div>The use of solid waste and raw materials such as ceramic sludge, klin rollers, magnesite, and limestone to produce low cost refractory ceramics after sintering at 1300 °C for 2 h was studied. Sample D30 with a composition of, 30 % diopside and 70 % mullite, was selected to be treated at 1200 °C for 2 h to investigate the effect of temperature on phase evolution. Microstructure, morphology and physical properties were also studied. Several techniques including XRF, XRD, SEM, EDX, flexural strength, and dielectric properties were used for samples characterisation. Densification parameters, morphology and microstructure were studied in order to evaluate the influence of the formed phases on the properties of produced ceramic materials. The study showed that the bulk density increased with the formation of corundum and mullite phases and decreased with the formation of anorthite and spinel phases. Bulk density also increased at higher firing temperatures. In contrast, porosity and water absorption showed the opposite trend to density. The main phases developed after firing at 1300 °C for 2 h were corundum, spinel, mullite, and anorthite. Flexural strength values were increased by increasing the precipitation pecent of corundum and mullite phases, as well as with bulk density. But it decreased with increasing porosity and both anorthite and spinel contents; ranging between 8.00 and 11.00 MPa. Bulk density increased with increasing of mullite content and temperature, ranging from 1.72 to 2.00 g/cm³, while porosity and water absorption ratio decreased from 32.59 to 22.10 and from 19.66 to 10.98, respectively. The microstructure morphology was converted from coarse-grained to fine-grained with increasing anorthite and spinel phases by increasing the temperature. To investigate the effect of the phases precipitated from the diopside-mullite system on their dielectric properties, parameters such as permeability (ε’), dielectric loss (ε′′), alternating current conductivity (σac) and Modulus'' were measured at the frequency range from 10⁻¹ Hz–10⁶ Hz. There is no noticeable effect on any of the dielectric parameters by increasing the concentration of diopside (CaMgSi₂O₆). In addition, the conductivity indicated that all the samples are insulators (σ_dc ≈ 10 pS/cm at f = 0.1 Hz) without any noticeable effect of composition.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"331 ","pages":"Article 130178"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The detection of volatile organic compounds using a CNPs/polypyrrole-based Solid-State sensor operating at room temperature","authors":"Lesego Malepe ,&nbsp;Derek Tantoh Ndinteh ,&nbsp;Patrick Ndungu ,&nbsp;Messai Adenew Mamo","doi":"10.1016/j.matchemphys.2024.130186","DOIUrl":"10.1016/j.matchemphys.2024.130186","url":null,"abstract":"<div><div>In this work, we report the use of carbon nanoparticles (CNPs), commonly as carbon soot, as they are prepared from the pyrolysis of lighthouse candle, polypyrrole (PPy) and carbon nanoparticles@polypyrrole (CNPs@PPy) composite sensors to detect volatile organic compounds at room temperature. Five sensors were fabricated wherein the first sensor was made up of PPy only was named sensor 1, sensor 2 was made up of CNPs only; sensor 3 was made up of a 1:1 mass ratio of CNPs@PPy, sensor 4 was made up of a 2:1 mass ratio of CNPs@PPy, and sensor 5 was fabricated using a 3:1 mass ratio of CNPs@PPy respectively. The sensors were tested dynamically using acetone, 2-propanol, ethanol, and mesitylene vapours. Among all the tested sensors, sensor 5 showed improved sensitivity towards the analytes as compared to sensors; sensor 5 showed higher sensitivity towards acetone vapour than 2-propanol, ethanol, and mesitylene vapours because of a changed amount of CNPs within the composite. The response and recovery times of sensor 5 towards acetone vapour were 72 and 110 s, respectively and a limit of detection (LOD) of 1.212 ppm. Sensor 5 showed a slight increase in acetone vapour as humidity increased. The gas sensing mechanism on sensor 5 was studied using an <em>in situ</em> Fourier Transform infrared spectroscopy (FTIR) combined with an LCR meter; basically, the acetone vapour interacts with the solid-state gas sensor supplied with 0.5 V at 25 kHz. The setup confirmed that the acetone completely decomposes into carbon dioxide (CO₂). It was also confirmed that the CO₂ band intensity increases as the exposure time between the acetone vapour and the sensor increases.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"332 ","pages":"Article 130186"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"pH-responsive corrosion protection coating with chitosan encapsulated halloysite nanotubes for active protection of copper","authors":"Hao Shi ,&nbsp;Zhihao Wang ,&nbsp;Guiwen Chu ,&nbsp;Zhengli Li ,&nbsp;Haoran Zhang ,&nbsp;Liying Song ,&nbsp;Yixiang Wang ,&nbsp;Lei Sun ,&nbsp;ZiChen Cao ,&nbsp;Fubin Ma","doi":"10.1016/j.matchemphys.2024.130182","DOIUrl":"10.1016/j.matchemphys.2024.130182","url":null,"abstract":"<div><div>Alkaline-etched halloysite nanotubes (HNTs) loaded the corrosion inhibitor 5-ethyl-1,3,4-thiadiazol-2-amine (ETDA), and encapsulated with chitosan (CS), was prepared as a novel nanofiller. Nanofillers were incorporated into the coating to prepare an anticorrosion coating with good dispersion and pH responsiveness. The mass of HNTs loaded ETDA and encapsulated CS were approximately 11 wt% and 41 wt%. CS-HNTs-ETDA nanoparticles exhibited good dispersion in Epoxide resin (EP). A better active protection was obtained after the scratched coating immersion in 3.5 wt% NaCl solution for 30 d. The active protection rate of coating with CS-HNTs-ETDA is better than that of coating with HNTs-ETDA at pH = 3, 7 and 9, and the best at pH = 3. ETDA was released from the uniformly dispersed CS-HNTs-ETDA in the coating and adsorbed on the copper surface at the scratch, formed a tight and thin film that isolated corrosive substances. This enables the coating to actively protect damaged areas and extending the equipment's lifespan.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"331 ","pages":"Article 130182"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and characterization of PVDF/PMMA nanocomposite membranes doped with graphene oxide (GO) for separation of CO2/CH4 from flue gas","authors":"I.S. Elashmawi ,&nbsp;El Said Gouda ,&nbsp;A.M. Abdelghany ,&nbsp;A.A. Menazea ,&nbsp;A.M. Ismail ,&nbsp;Hassan M. Diab","doi":"10.1016/j.matchemphys.2024.130171","DOIUrl":"10.1016/j.matchemphys.2024.130171","url":null,"abstract":"<div><div>This work focuses on developing polyvinylidene fluoride/polymethyl methacrylate (PVDF/PMMA) polymer blend nanocomposites incorporating varying concentrations of graphene oxide (GO) nanoparticles fabricated via casting solution processes. XRD and FT-IR confirmed GO-induced structural modifications in PVDF/PMMA blend. The addition of GO into PMMA/PVDF blend decreased and weakened the intensity of XRD peaks, suggesting that adding GO gradually reduces the crystallinity of the films. FT-IR verified miscibility and complex formation between the pristine polymer blend and the GO-filled nanocomposite. The incorporation of GO caused shifts in the optical absorption edge to lower wavelengths, causing a decrease in the optical bandgap energy (E_g). The real and imaginary parts of the dielectric permittivity (<em>ε</em>′ and <em>ε</em>′′), electric modulus (M′, M″), and AC conductivity (σ_ac) have been measured from 0.1 Hz to 6 MHz. Both <em>ε</em>′ and <em>ε</em>′′ declined with rising frequency. The addition of different concentrations of GO generated charge transfer complexes in the polymer nanocomposites. SEM images show good homogeny with random dispersion of GO inside the polymer blend. The thermoluminescence (TL) glow curves for the nanocomposite samples irradiated 0.5, 1.0, 1.5, and 2 Gy doses show peak cantered at 207 °C. The peak position remained unchanged with increasing irradiation dosage. The dose-dependent linear growth in maximum peak height indicates radiation detection and monitoring capability.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"332 ","pages":"Article 130171"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of addition of CaTiO3 powder to sol-gel coatings prepared by dip coating method on mechanical properties and biocompatibility","authors":"Zuzana Budinská ,&nbsp;Zdenek Tolde ,&nbsp;Diana Horkavcová ,&nbsp;Petr Vlčák","doi":"10.1016/j.matchemphys.2024.130189","DOIUrl":"10.1016/j.matchemphys.2024.130189","url":null,"abstract":"<div><div>In this paper, the mechanical properties and bioactivity of CaTiO₃ (Calcium titanate) ceramic coatings prepared by dip coating method on titanium substrates were measured. To prepare 350 nm thick coatings, CaTiO₃ powders of different amounts (3 g, 5 g and 7 g per 25 ml of sol-gel) were added to our pre-prepared sol-gel. This sol-gel itself showed excellent biocompatible properties in previous measurements. The structure and surface morphology of the coatings after addition of the powder were investigated by X-ray diffraction, SEM (Scanning electron microscope), EDS (Energy Dispersive Spectroscopy), mechanical properties and surface wettability were also studied. The biological response of MG63 cell lines was measured by culturing the cells at 24, 48 and 72 h intervals. The results show a correlation between surface morphology and contact angle value, which are affected by the addition of powder, and the percentage increase in cell colonizationinteraction. The conditions that showed the best results with respect to the percentage increase in cell colonies were determined. The best response was obtained for the sample of 5 g CaTiO₃ + 25 ml sol-gel on titanium substrate.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"331 ","pages":"Article 130189"},"PeriodicalIF":4.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}