ABSTRACT In order to enhance the interfacial bonding between aluminum and β-Si3N4 whiskers in Al matrix composites (AMCs), Ni coating was deposited on the surface of β-Si3N4 whiskers using an electroless plating method. The interfacial test results showed that Ni coating was successfully deposited on the surface of β-Si3N4 whiskers and the whiskers were well bonded with Al matrix without pores. In addition, the whiskers were homogeneously dispersed in the Al matrix. The effect of Ni-coated β-Si3N4 whiskers on the mechanical properties of composites was investigated in detail. Densification and the mechanical performance of AMCs reinforced by Ni coated β-Si3N4 whiskers (NSAMCs) were improved comparing to that of AMCs reinforced by uncoated β-Si3N4 whiskers (USAMCs). The maximum value of tensile strength and bending strength reached up to 290 MPa and 487 MPa, when the Ni content was 0.9 vol.% and the β-Si3N4 whiskers content was 20 wt.%, respectively. However, excessive Ni content weakened the strengthening effect. Medium Ni coating on β-Si3N4 whiskers significantly optimized the interface and improved the performance of the composites. GRAPHICAL ABSTRACT
{"title":"Improved properties of Al matrix composites reinforced with Ni-coated β-Si3N4 whiskers","authors":"Fayu Li, Jinwei Yin, Dongxu Yao, Yongfeng Xia, Hanqin Liang, Yuping Zeng","doi":"10.1080/09276440.2023.2204252","DOIUrl":"https://doi.org/10.1080/09276440.2023.2204252","url":null,"abstract":"ABSTRACT In order to enhance the interfacial bonding between aluminum and β-Si3N4 whiskers in Al matrix composites (AMCs), Ni coating was deposited on the surface of β-Si3N4 whiskers using an electroless plating method. The interfacial test results showed that Ni coating was successfully deposited on the surface of β-Si3N4 whiskers and the whiskers were well bonded with Al matrix without pores. In addition, the whiskers were homogeneously dispersed in the Al matrix. The effect of Ni-coated β-Si3N4 whiskers on the mechanical properties of composites was investigated in detail. Densification and the mechanical performance of AMCs reinforced by Ni coated β-Si3N4 whiskers (NSAMCs) were improved comparing to that of AMCs reinforced by uncoated β-Si3N4 whiskers (USAMCs). The maximum value of tensile strength and bending strength reached up to 290 MPa and 487 MPa, when the Ni content was 0.9 vol.% and the β-Si3N4 whiskers content was 20 wt.%, respectively. However, excessive Ni content weakened the strengthening effect. Medium Ni coating on β-Si3N4 whiskers significantly optimized the interface and improved the performance of the composites. GRAPHICAL ABSTRACT","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"58 1","pages":"1145 - 1158"},"PeriodicalIF":2.6,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74208060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT Composite phase change materials with sugar alcohol as the phase change material and highly thermally conductive ceramics as the porous skeleton are widely used in various thermal storage systems. The interfacial thermal conductance (ITC) between the phase change materials under different phases and the skeleton is an important factor affecting the rate of heat storage (release) in thermal storage systems. The ITC between ceramics(AlN, SiC) and sugar alcohols (mannitol and galactitol) in the solid and liquid states is investigated by means of both time-domain thermoreflectance and molecular dynamics simulations. The results show that the ITC between phase change materials and ceramic is better in liquid state than in solid state, and that the ITC between mannitol and ceramic is better, and that the ITC betweenAlN and sugar alcohol is better. More low-frequency phonons are involved in the thermal transport of the sugar alcohols in the liquid state, with an average overlap energy of about 9.5% higher than that of the solid state and an average phonon participation rate of about 6.8% higher. It was also found that it isthe H atom in the sugar alcohol that is linked to the C atom that governs the ITC. GRAPHICAL ABSTRACT
{"title":"Study of the effect of phase state on the interfacial thermal conductance between PCMs and ceramic skeletons","authors":"Tong Zhang, Fangyuan Sun, Libing Zheng, Dazheng Wang, Yanhui Feng","doi":"10.1080/09276440.2023.2210878","DOIUrl":"https://doi.org/10.1080/09276440.2023.2210878","url":null,"abstract":"ABSTRACT Composite phase change materials with sugar alcohol as the phase change material and highly thermally conductive ceramics as the porous skeleton are widely used in various thermal storage systems. The interfacial thermal conductance (ITC) between the phase change materials under different phases and the skeleton is an important factor affecting the rate of heat storage (release) in thermal storage systems. The ITC between ceramics(AlN, SiC) and sugar alcohols (mannitol and galactitol) in the solid and liquid states is investigated by means of both time-domain thermoreflectance and molecular dynamics simulations. The results show that the ITC between phase change materials and ceramic is better in liquid state than in solid state, and that the ITC between mannitol and ceramic is better, and that the ITC betweenAlN and sugar alcohol is better. More low-frequency phonons are involved in the thermal transport of the sugar alcohols in the liquid state, with an average overlap energy of about 9.5% higher than that of the solid state and an average phonon participation rate of about 6.8% higher. It was also found that it isthe H atom in the sugar alcohol that is linked to the C atom that governs the ITC. GRAPHICAL ABSTRACT","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"21 1","pages":"1269 - 1287"},"PeriodicalIF":2.6,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79419659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-08DOI: 10.1080/09276440.2023.2209370
Darong Yu, Sanqiu Liu, Yong Xin
ABSTRACT In this study, air plasma and ZnO coating was used to modify ultra-high-molecular-weight polyethylene fibre (UHMWPE). The surface morphologies of the fibre with and without ZnO coating were examined under an electron scanning microscope (SEM), and the surface chemical composition was studied through X-ray spectroscopy. Moreover, the impact resistance and weight loss heat weight (TGA) of the fibre were examined. The results of this study indicated that the chemical activity of the fibre surface was enhanced due to the adsorption of O-C=O group, thus increasing the binding force between nano-ZnO coating and the fibre surface. A compact net-like nano-ZnO coating was identified on the fibre surface. The fibre pre-treated by plasma can be plated with more complete coatings, the thermal stability was enhanced by 19.7% after 120 s of treatment, and the impact resistance was significantly increased by 177% after 90 s of treatment. GRAPHICAL ABSTRACT
摘要本研究采用空气等离子体和ZnO涂层对超高分子量聚乙烯纤维(UHMWPE)进行改性。用电子扫描显微镜(SEM)观察了涂覆和未涂覆ZnO纤维的表面形貌，并用x射线能谱分析了表面化学成分。测试了纤维的抗冲击性能和热失重(TGA)。本研究结果表明，O- c =O基团的吸附增强了纤维表面的化学活性，从而增加了纳米zno涂层与纤维表面的结合力。在纤维表面发现了致密的网状纳米氧化锌涂层。经等离子体预处理的纤维可获得更完整的涂层，处理120 s后热稳定性提高19.7%，处理90 s后抗冲击性能显著提高177%。图形抽象
{"title":"Air Plasma-Nano ZnO Coating Improves the Impact Resistance of Ultra-High Molecular Weight Polyethylene Fiber","authors":"Darong Yu, Sanqiu Liu, Yong Xin","doi":"10.1080/09276440.2023.2209370","DOIUrl":"https://doi.org/10.1080/09276440.2023.2209370","url":null,"abstract":"ABSTRACT In this study, air plasma and ZnO coating was used to modify ultra-high-molecular-weight polyethylene fibre (UHMWPE). The surface morphologies of the fibre with and without ZnO coating were examined under an electron scanning microscope (SEM), and the surface chemical composition was studied through X-ray spectroscopy. Moreover, the impact resistance and weight loss heat weight (TGA) of the fibre were examined. The results of this study indicated that the chemical activity of the fibre surface was enhanced due to the adsorption of O-C=O group, thus increasing the binding force between nano-ZnO coating and the fibre surface. A compact net-like nano-ZnO coating was identified on the fibre surface. The fibre pre-treated by plasma can be plated with more complete coatings, the thermal stability was enhanced by 19.7% after 120 s of treatment, and the impact resistance was significantly increased by 177% after 90 s of treatment. GRAPHICAL ABSTRACT","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"7 1","pages":"1247 - 1267"},"PeriodicalIF":2.6,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91158255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-20DOI: 10.1080/09276440.2023.2204539
Haobo Jiang, J. Cui, Yujun Li, Kang Guan, Pinggen Rao
ABSTRACT The carbon fiber/siliconboron carbonitride (Cf/SiBCN) mini-composites exhibit poor mechanical properties due to the strong fiber-matrix bonding, which can be improved by introducing the hydrothermal carbon (HTC) interphase and further engineered by optimizing the HTC interphase thickness. To investigate the effect of the HTC interphase thickness on the mechanical properties of the Cf/SiBCN mini-composites, the tensile properties of the Cf/SiBCN mini-composites with different HTC interphase thicknesses were compared. The tensile test results show that the fracture behavior of the Cf/SiBCN mini-composites changes from brittle fracture to non-brittle fracture after introducing the HTC interphase. In addition, the tensile strength and work of fracture (WOF) of Cf/SiBCN mini-composites first increase and then decrease with the HTC interphase thickness increasing. The corresponding Cf/SiBCN mini-composites with 120 nm HTC interphase exhibits the maximum tensile strength and WOF, which are improved by around 4 times and 18 times, compared with the mini-composites without interphase. This work shows that the introduction of HTC interphase is conducive to improve the tensile properties of the Cf/SiBCN mini-composites, which can provide a preliminary basis for further investigating the effect of HTC interphase on the mechanical properties of the Cf/SiBCN composites. GRAPHICAL ABSTRACT
{"title":"Effect of hydrothermal carbon interphase thickness on mechanical properties of Cf/SiBCN mini-composites","authors":"Haobo Jiang, J. Cui, Yujun Li, Kang Guan, Pinggen Rao","doi":"10.1080/09276440.2023.2204539","DOIUrl":"https://doi.org/10.1080/09276440.2023.2204539","url":null,"abstract":"ABSTRACT The carbon fiber/siliconboron carbonitride (Cf/SiBCN) mini-composites exhibit poor mechanical properties due to the strong fiber-matrix bonding, which can be improved by introducing the hydrothermal carbon (HTC) interphase and further engineered by optimizing the HTC interphase thickness. To investigate the effect of the HTC interphase thickness on the mechanical properties of the Cf/SiBCN mini-composites, the tensile properties of the Cf/SiBCN mini-composites with different HTC interphase thicknesses were compared. The tensile test results show that the fracture behavior of the Cf/SiBCN mini-composites changes from brittle fracture to non-brittle fracture after introducing the HTC interphase. In addition, the tensile strength and work of fracture (WOF) of Cf/SiBCN mini-composites first increase and then decrease with the HTC interphase thickness increasing. The corresponding Cf/SiBCN mini-composites with 120 nm HTC interphase exhibits the maximum tensile strength and WOF, which are improved by around 4 times and 18 times, compared with the mini-composites without interphase. This work shows that the introduction of HTC interphase is conducive to improve the tensile properties of the Cf/SiBCN mini-composites, which can provide a preliminary basis for further investigating the effect of HTC interphase on the mechanical properties of the Cf/SiBCN composites. GRAPHICAL ABSTRACT","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"84 1","pages":"1159 - 1171"},"PeriodicalIF":2.6,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80285346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT 3D-Network SiC ceramic was prepared using a polymer sponge replica technique with SiC ceramic slurry (77 wt% solid content). The triangular hole defects in 3D-Network SiC ceramic were reduced and the mechanical properties were improved by high-pressure spraying and vacuum infiltration. The 3D-Network SiC/Cu composite material was fabricated by the gravity casting technique, and the interfacial bonding and abrasion resistance of the composites were tested and analyzed. The results show that the compressive strength of high-pressure sprayed 3D-Network SiC ceramic increased slightly from 0.67 Mpa to 0.74 Mpa due to the triangular hole defects left when the polymer sponge was decomposed at high temperatures. The mechanical properties of 3D-Network SiC ceramics that have been vacuum infiltrated in alumina and a mixture composed of alumina and andalusite were greatly improved, and their compressive strength was increased to 1.02Mpa and 1.57Mpa, respectively. The interface between SiC and Cu in the 3D-Network SiC/Cu composites prepared by different processes shows excellent bonding, and the abrasion resistance of the 3D-Network SiC/Cu composites prepared by different processes was 2.02–9.18 times that of pure copper respectively. GRAPHICAL ABSTRACT
{"title":"Study on the fabrication and performance of 3D-Network SiC/Cu composites","authors":"Jiaqi Chang, Qingming Chang, Xiaowei Gong, Ke Li, Siqian Bao, Yawei Li, Xiong Liang","doi":"10.1080/09276440.2023.2201742","DOIUrl":"https://doi.org/10.1080/09276440.2023.2201742","url":null,"abstract":"ABSTRACT 3D-Network SiC ceramic was prepared using a polymer sponge replica technique with SiC ceramic slurry (77 wt% solid content). The triangular hole defects in 3D-Network SiC ceramic were reduced and the mechanical properties were improved by high-pressure spraying and vacuum infiltration. The 3D-Network SiC/Cu composite material was fabricated by the gravity casting technique, and the interfacial bonding and abrasion resistance of the composites were tested and analyzed. The results show that the compressive strength of high-pressure sprayed 3D-Network SiC ceramic increased slightly from 0.67 Mpa to 0.74 Mpa due to the triangular hole defects left when the polymer sponge was decomposed at high temperatures. The mechanical properties of 3D-Network SiC ceramics that have been vacuum infiltrated in alumina and a mixture composed of alumina and andalusite were greatly improved, and their compressive strength was increased to 1.02Mpa and 1.57Mpa, respectively. The interface between SiC and Cu in the 3D-Network SiC/Cu composites prepared by different processes shows excellent bonding, and the abrasion resistance of the 3D-Network SiC/Cu composites prepared by different processes was 2.02–9.18 times that of pure copper respectively. GRAPHICAL ABSTRACT","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"80 1","pages":"1227 - 1246"},"PeriodicalIF":2.6,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83830168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-10DOI: 10.1080/09276440.2023.2200569
Yue Li, Tianyu Chen, Ping Tang, Shaohua Zeng
Statement of Retraction We, the authors, Editors and Publisher of the journal Composite Interfaces have retracted the following article: Yue Li, Tianyu Chen, Ping Tang & Shaohua Zeng (2023) Simultaneously enhanced interfacial, mechanical properties and flame retardancy of high-density polyethylene-based composites using Mg,Al-containing melamine polyphosphate-grafted wood fibers, Composite Interfaces, DOI: 10.1080/09276440.2023.2200569 Since publication, the authors have found inconsistencies with the repeatability of the flame retardant performance. As this impacts the validity of the reported results and conclusions, the authors alerted the issue to the Editor and Publisher, and all have agreed to retract the article to ensure the integrity of the scholarly record. We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.
{"title":"Simultaneously enhanced interfacial, mechanical properties and flame retardancy of high-density polyethylene-based composites using Mg,Al-containing melamine polyphosphate-grafted wood fibers","authors":"Yue Li, Tianyu Chen, Ping Tang, Shaohua Zeng","doi":"10.1080/09276440.2023.2200569","DOIUrl":"https://doi.org/10.1080/09276440.2023.2200569","url":null,"abstract":"Statement of Retraction We, the authors, Editors and Publisher of the journal Composite Interfaces have retracted the following article: Yue Li, Tianyu Chen, Ping Tang & Shaohua Zeng (2023) Simultaneously enhanced interfacial, mechanical properties and flame retardancy of high-density polyethylene-based composites using Mg,Al-containing melamine polyphosphate-grafted wood fibers, Composite Interfaces, DOI: 10.1080/09276440.2023.2200569 Since publication, the authors have found inconsistencies with the repeatability of the flame retardant performance. As this impacts the validity of the reported results and conclusions, the authors alerted the issue to the Editor and Publisher, and all have agreed to retract the article to ensure the integrity of the scholarly record. We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"15 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80461487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-10DOI: 10.1080/09276440.2023.2200600
Zahra Shareh, Mehdi Zamani
ABSTRACT In this study, the preparation of thermally stable organic-inorganic hybrid nanocomposites from chemically functionalized oxidized graphite is carried out by in-situ catalytic oxidative decarboxylation of 3,5-dinitrobenzoic acid (reactant) in the presence of potassium persulfate (oxidant), silver nitrate (catalyst) and graphite (support) under thermal or microwave conditions. The effects of heat transfer and dosages of reactant, catalyst and oxidant on the crystalline structure and the morphology of nanocomposites are studied in detail. The prepared nanocomposites are characterized by EDS, elemental mapping, FE-SEM, FT-IR and XRD. The thermal stability of nanocomposites is examined by TGA and DSC. EDS shows that nanocomposites are composed of C, O, N, S, K and Ag elements. FT-IR exhibits that the graphitic layers in nanocomposites are mainly oxidized and functionalized with carboxyl, carbonyl, hydroxyl, epoxy, sulfate, nitrate and nitroaryl groups. Addition of nitroaryl groups to nanocomposites is also supported by an increase found in their C and N contents. XRD demonstrates the coexistence of both oxidized amorphous carbon and graphite in combination with different levels of organic and inorganic phases. The prepared nanocomposites show good thermal stability. The total area of the DSC curve in these nanocomposites compared to graphite is enhanced. Graphical abstract
{"title":"Preparation of thermally stable organic-inorganic hybrid nanocomposites from chemically functionalized oxidized graphite by in situ catalytic oxidative decarboxylation","authors":"Zahra Shareh, Mehdi Zamani","doi":"10.1080/09276440.2023.2200600","DOIUrl":"https://doi.org/10.1080/09276440.2023.2200600","url":null,"abstract":"ABSTRACT In this study, the preparation of thermally stable organic-inorganic hybrid nanocomposites from chemically functionalized oxidized graphite is carried out by in-situ catalytic oxidative decarboxylation of 3,5-dinitrobenzoic acid (reactant) in the presence of potassium persulfate (oxidant), silver nitrate (catalyst) and graphite (support) under thermal or microwave conditions. The effects of heat transfer and dosages of reactant, catalyst and oxidant on the crystalline structure and the morphology of nanocomposites are studied in detail. The prepared nanocomposites are characterized by EDS, elemental mapping, FE-SEM, FT-IR and XRD. The thermal stability of nanocomposites is examined by TGA and DSC. EDS shows that nanocomposites are composed of C, O, N, S, K and Ag elements. FT-IR exhibits that the graphitic layers in nanocomposites are mainly oxidized and functionalized with carboxyl, carbonyl, hydroxyl, epoxy, sulfate, nitrate and nitroaryl groups. Addition of nitroaryl groups to nanocomposites is also supported by an increase found in their C and N contents. XRD demonstrates the coexistence of both oxidized amorphous carbon and graphite in combination with different levels of organic and inorganic phases. The prepared nanocomposites show good thermal stability. The total area of the DSC curve in these nanocomposites compared to graphite is enhanced. Graphical abstract","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"37 1","pages":"1173 - 1200"},"PeriodicalIF":2.6,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73303481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-10DOI: 10.1080/09276440.2023.2200619
Yongqiang Li, Weimin Lv, Gaochun Li, H. Zang
ABSTRACT In order to realize the quantitative analysis of the structural integrity and damage evolution of hydroxyl-terminated polybutadiene (HTPB) composite solid propellant under external load, the loading failure experiments were carried out on the macro rectangular specimen and the micro specimen, and the numerical analysis of the strain evolution process in the region of interest (ROI) of the specimen was carried out using digital image correlation (DIC). At the same time, with the help of finite element model updating (FEMU) method, the mechanical and cohesion parameters of the specimen were inversed using the combination of adaptive particle swarm optimization (APSO), back propagation (BP) and Hooke-Jeeves algorithm, and the simulation of the whole process of propellant damage and fracture was realized from the microscopic point of view. The results show that inhibiting the debonding of propellant/liner interface is the key to maintain the structural integrity. It starts with the damage and fracture of the propellant side. A scanning electron microscope (SEM) in-situ dynamic tensile test shows that the initial damage occurs at the strain of 27.368%, and the through-type crack propagates along the interface when the strain reaches 43.276%. In addition, the use of combinatorial optimization algorithm can realize the global optimal inversion of 16 parameters divided into three types in 100 complete calculations, reduce the optimal objective function value to 0.0251, and assist the finite element calculation to realize the quantitative analysis and accurate simulation of the experimental process. GRAPHICAL ABSTRACT
{"title":"Macro and micro damage analysis and parameter inversion of HTPB adhesive Interface based on DIC and FEMU","authors":"Yongqiang Li, Weimin Lv, Gaochun Li, H. Zang","doi":"10.1080/09276440.2023.2200619","DOIUrl":"https://doi.org/10.1080/09276440.2023.2200619","url":null,"abstract":"ABSTRACT In order to realize the quantitative analysis of the structural integrity and damage evolution of hydroxyl-terminated polybutadiene (HTPB) composite solid propellant under external load, the loading failure experiments were carried out on the macro rectangular specimen and the micro specimen, and the numerical analysis of the strain evolution process in the region of interest (ROI) of the specimen was carried out using digital image correlation (DIC). At the same time, with the help of finite element model updating (FEMU) method, the mechanical and cohesion parameters of the specimen were inversed using the combination of adaptive particle swarm optimization (APSO), back propagation (BP) and Hooke-Jeeves algorithm, and the simulation of the whole process of propellant damage and fracture was realized from the microscopic point of view. The results show that inhibiting the debonding of propellant/liner interface is the key to maintain the structural integrity. It starts with the damage and fracture of the propellant side. A scanning electron microscope (SEM) in-situ dynamic tensile test shows that the initial damage occurs at the strain of 27.368%, and the through-type crack propagates along the interface when the strain reaches 43.276%. In addition, the use of combinatorial optimization algorithm can realize the global optimal inversion of 16 parameters divided into three types in 100 complete calculations, reduce the optimal objective function value to 0.0251, and assist the finite element calculation to realize the quantitative analysis and accurate simulation of the experimental process. GRAPHICAL ABSTRACT","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"5 1","pages":"1201 - 1226"},"PeriodicalIF":2.6,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79760858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-17DOI: 10.1080/09276440.2023.2190680
S. Savetlana, T. Gough, A. Kelly
ABSTRACT In order to increase the interfacial adhesion between polybutylene succinate and coconut shell particles, two kinds of chemical treatment of coconut shell particle were carried out. Firstly, a 5% sodium hydroxide treatment and secondly, a 2% sodium hydroxide plus silane coupling agent treatment. The possibility of increasing matrix adhesion has also been explored through addition of polycaprolactone to polybutylene succinate as a matrix. Composites were produced using extrusion prior to injection moulding. The results show that, compared with neat polybutylene succinate, composites with low percentage of particle loading have a higher tensile strength and strain at break despite their lower elastic modulus. A higher elastic modulus can be obtained for composites with higher particle loadings through sacrifice of their ductility. The same trend is observed for composites with the polymer-blend matrix. Scanning electron micrographs show good adhesion between particle and matrix for particles that undergo the second treatment. At low percentage of particle addition, the crystallinity of the composites is higher than the neat polybutylene succinate, however melting temperature is less affected by the addition of reinforcement. Rheological properties such as storage modulus, loss modulus and complex viscosity of the composites are higher than for neat polybutylene succinate. GRAPHICAL ABSTRACT
{"title":"Properties of polybutylene succinate and polybutylene succinate -polycaprolactone based composite reinforced with coconut shell particles","authors":"S. Savetlana, T. Gough, A. Kelly","doi":"10.1080/09276440.2023.2190680","DOIUrl":"https://doi.org/10.1080/09276440.2023.2190680","url":null,"abstract":"ABSTRACT In order to increase the interfacial adhesion between polybutylene succinate and coconut shell particles, two kinds of chemical treatment of coconut shell particle were carried out. Firstly, a 5% sodium hydroxide treatment and secondly, a 2% sodium hydroxide plus silane coupling agent treatment. The possibility of increasing matrix adhesion has also been explored through addition of polycaprolactone to polybutylene succinate as a matrix. Composites were produced using extrusion prior to injection moulding. The results show that, compared with neat polybutylene succinate, composites with low percentage of particle loading have a higher tensile strength and strain at break despite their lower elastic modulus. A higher elastic modulus can be obtained for composites with higher particle loadings through sacrifice of their ductility. The same trend is observed for composites with the polymer-blend matrix. Scanning electron micrographs show good adhesion between particle and matrix for particles that undergo the second treatment. At low percentage of particle addition, the crystallinity of the composites is higher than the neat polybutylene succinate, however melting temperature is less affected by the addition of reinforcement. Rheological properties such as storage modulus, loss modulus and complex viscosity of the composites are higher than for neat polybutylene succinate. GRAPHICAL ABSTRACT","PeriodicalId":10653,"journal":{"name":"Composite Interfaces","volume":"25 1","pages":"1119 - 1144"},"PeriodicalIF":2.6,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89781532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-12DOI: 10.1080/09276440.2023.2189352
Iqra Fatima, H. Ejaz, M. Nigar, D. Rizwan, Aqeel A. Khurram
ABSTRACT The conducted work investigates the correlation between toughness characteristics and metal volume fraction in Fiber Metal Laminates (FMLs) subjected to tensile loads. Aerospace grade Al 7075-T6 was utilized as the varying metal alloy in the study. The metal alloy was combined with glass and carbon fiber layers to create different configurations of FMLs with varying stacking sequences. For better adhesion between metal and composite parts, aluminum layers were etched with sodium hydroxide and chromic-sulfuric acid solutions. The laminate sheets were prepared using the hand layup method which was followed by a vacuum bagging process. Specimens were cut and tested as per ASTM standard. Results of the experimentation showed that the aluminum volume fraction is directly related to the failure strain and modulus of toughness, however, inversely proportional to the stiffness characteristics of the laminates. The highest improvement of 111% in toughness parameter in comparison to pure composite laminate was reported. Finally, a comprehensive analysis on the type of fracture behavior in comparison to classical laminate theory was critically discussed. GRAPHICAL ABSTRACT
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