Article
Materials Science, Ceramics
Binbin Wu, Na Ni, Xiaohui Fan, Xiaofeng Zhao, Fangwei Guo, Qi Ding, Ping Xiao
Summary: The experiment showed that SiC fibers with scheelite coating treated in vacuum exhibited good thermal stability, while fibers prepared in Ar/air had significantly degraded strength and poor spool ability. This difference is attributed to the assisted oxidation of SiC fiber by calcium salts in Ar/air atmosphere.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Xihui Chen, Zhigang Sun, Xiao Han, Xuming Niu, Yingdong Song
Summary: The study found that oxidation of Cansas-II SiC fibers at high temperatures can lead to ordered growth of beta-SiC grains and an increase in the size of free carbon in the SiC core, as well as an increase in the thickness of the SiO2 layer, ultimately affecting the tensile strength of the fibers.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Jianjie Hao, Jiayan Li, Binglin Zou, Xiaolong Cai, Wei Shi, Yi Tan
Summary: The poor oxidation resistance of the ZSA coating is mainly due to the inability to seal cracks and holes, while the decreased oxidation resistance of the ZSS coating is mainly caused by the formation of large holes in the coating and increased viscosity.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Bo Wang, Gui Li, Jiayan Li, Long Wang, Xinpeng Zhuang, Wei Shi, Yi Tan
Summary: The introduction of root structure improves the oxidation resistance and bonding strength of chemical vapor deposition (CVD) SiC coating on C/SiC composites. The designed and prepared root structure, consisting of pores and SiC nanowires, enhances the bonding strength between the matrix and SiC coating, reduces coating cracking or spalling, and improves coating's oxidation resistance.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Shaobing Li, Na Ni, Binbin Wu, Chuanwei Li, Qi Ding, Zongbei He
Summary: The study found that the temperature and atmosphere had a significant impact on the microstructural evolution and mechanical strength of SiC fibers coated with Ti3SiC2 interphase when treated in vacuum and argon atmospheres. The fiber strength treated in argon was lower than that treated in vacuum primarily due to the oxidation of Ti3SiC2 in the argon atmosphere.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Tao Li, Yulei Zhang, Jian Zhang, Yanqin Fu, Jie Li
Summary: A SiO2-SiC reticulated layer with SiC nanowires was pre-prepared on C/C composites to improve oxidation resistance and alleviate siliconization erosion during SiC coating preparation, resulting in a compact and homogeneous SiC coating.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Agricultural Engineering
Changjie Chen, Jing Tan, Xinhou Wang
Summary: This paper focuses on the applications of environmentally friendly high-performance materials derived from natural fibers. Windmill palm mesh and windmill palm/flax fabrics were used as reinforcing materials to prepare epoxy matrix composites. The results showed that the palm materials reinforced composites had excellent mechanical properties.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Materials Science, Ceramics
Yunfa Jia, Guoqiang Yu, Jian Shi, Song Dong, Xiguang Gao, Yingdong Song, Fang Wang
Summary: The tensile-tension fatigue behavior of minicomposite SiC/(PyC/SiC)2/SiC at room temperature was studied, and the residual mechanical properties of specimens were tested after 106 pre-fatigue cycles under different stress levels. It was found that the residual strength initially increases due to stress concentration release and then decreases because of excessive fiber wear. Additionally, the tensile curve of pre-fatigue specimens showed two deflections, with the first correlated with matrix crack reopening and the second occurring when the uniaxial tensile load exceeds the pre-fatigue stress.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Jianjie Hao, Jiayan Li, Xiaolei Shi, Ping He, Wei Shi, Yi Tan
Summary: This study investigates the changes in microstructure and mechanical properties of carbon fiber and their effects on C/SiC composites. The heat treatment temperature exceeding 1200 degrees C results in the escape of H, N, and O atoms and an increase in carbon content in the carbon fiber. Furthermore, the growth of graphite crystallite leads to stress concentration and reduces the tensile strength of carbon fiber. The reduced active atoms on the surface of carbon fiber weaken the bonding force between carbon fiber and the pyrolytic carbon interface layer, improving the pullout mechanism. After heat treatment at 1600 degrees C, the flexural strength of the C/SiC composite increases.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Ceramics
Guo-Qing Li, Min Yu, Guo-Wei Lin, Yun-Long Wang, Li-Xia Yang, Ji-Xuan Liu, Francesco Gucci, Guo-Jun Zhang
Summary: Biomorphic ceramic materials show potential for high-temperature applications. The shaddock peel-derived C-SiC-SiO2 composites exhibit excellent physical and chemical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Q. Xu, X. Jin, L. Liu, C. Hou, N. Hu, J. Chen, S. Zhao, T. J. Marrow, X. Fan
Summary: The study investigates the thermal shock resistance of SiC/SiC composite braided tubes and measures the residual tensile strength using a novel method. The results show that the circumferential tensile strength decreases with increasing thermal shock cycles, accompanied by oxidation-induced limited fiber pullout near the surface. The test platform can simulate fast temperature cycling service environments for small test specimens in air.
EXPERIMENTAL MECHANICS
(2023)
Article
Materials Science, Ceramics
Dexuan Yan, Mei Zu, Pengren Wang, Yu Zhang, Jiahui Chen, Yanzi Gou
Summary: SiC fibers are widely studied as reinforcements for advanced ceramic matrix composites due to their excellent high-temperature properties. The compressive behavior of two types of SiC fibers with different compositions and thermal degradation was characterized in this study. It was found that the compressive strength of SiC fibers decreased after high-temperature treatment, attributed to SiC grain coarsening and SiCxOy phase decomposition.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Jingmao Chen, Hong Qian, Shun Dong, Changqing Hong, Xinghong Zhang
Summary: A composite coating of Cf/HTCC-SiO2 was successfully designed and constructed using hydrothermal carbonization and sol-gel processes with optimized conditions, significantly improving the mechanical and anti-oxidation properties of 3D needle carbon fibers. The resulting composite coating had a relatively continuous and uniform thickness of about 350 and 300 nm, leading to a 336% increase in compressive strength and a 100°C improvement in rapid oxidation temperature compared to uncoated fibers.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Joseph Ndiithi Ndumia, Min Kang, Bertrand Vigninou Gbenontin, Jinran Lin, Samuel Mbugua Nyambura, Jitao Liu
Summary: The adhesion properties of FeCrMoCBWNb coatings on Q235 and 65Mn steel substrates were investigated. It was found that the mechanical properties of the substrates played a significant role in determining the adhesion properties of the coatings. Higher substrate roughness enhanced the mechanical interlocking between the coating particles and the substrate.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Chang Li, Xingui Zhou, Quanchao Gu, Xingheng Yan, Honglei Wang
Summary: A continuous chemical vapor deposition method was used to fabricate pyro-carbon coating on continuous silicon carbide fibers. The coated fibers were evaluated by testing filament tensile and using microstructure characterization. The results showed that the coated fibers had straighter morphology and complete geometry with uniform thickness compared to conventional methods. The thickness of the pyro-carbon coating could be controlled within a range of 100 to 1,000 nm. The study also discovered a distinctive growth process in the continuous chemical vapor deposition method, where a higher growth rate of pyro-carbon was achieved in shorter deposition time. This suggests that the method is efficient and high-quality for fabricating coatings.
MULTIDISCIPLINE MODELING IN MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Pingyi Guo, Yongbiao Lai, Yong Shao, Yu Zhang, Yuxin Wang
Article
Materials Science, Multidisciplinary
Pingyi Guo, Yongbiao Lai, Yong Shao, Yu Zhang, Hang Sun, Yuxin Wang
Article
Materials Science, Multidisciplinary
Yanxin Qiao, Daokui Xu, Shuo Wang, Yingjie Ma, Jian Chen, Yuxin Wang, Huiling Zhou
Article
Materials Science, Multidisciplinary
Dongdong Zhang, Muhammad Qaim, Weidong Gao, Weihui Zhang, Adwoa Bia Owusu, Zhen He, Yuxin Wang
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Multidisciplinary
Xiaodong Hu, Rongjie Jiang, Fang Luo, Yuanhang Lu, Yuxin Wang, Zhen He
Summary: In this study, SiC nanocoatings were successfully prepared on graphite substrates using a laser treatment process, exhibiting excellent high-temperature oxidation resistance. The dense and crack-free surface morphology of the SiC nanocoating, along with the self-healing ability due to the formation of SiO2, contributes to enhanced protection of the underlying graphite substrate. The laser-prepared SiC nanocoating serves as an efficient and effective method for manufacturing SiC protective coatings with improved high-temperature oxidation resistance.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Chemistry, Physical
Mustafa Khan, Xuli Ding, Hongda Zhao, Xinrong Ma, Yuxin Wang
Summary: Carbon-selenium composite positive electrode (CSs@Se) prepared using a melt diffusion method with glucose as a precursor shows good electrochemical performance for lithium-selenium batteries, exhibiting high rate capability and cycling stability. Through various tests, it is found that selenium particles are uniformly distributed in carbon spheres and diffuse homogeneously within the spheres, leading to enhanced electrochemical performance.
Article
Materials Science, Multidisciplinary
Shengping Zhang, Chen Yu, Jingyi Tan, Yuxin Wang, Zhen He
Summary: Ti/SnO2-Sb2Ox-TiO2 electrodes were prepared using a sol-enhanced electrodeposition technique from methanesulfonate electrolytes. The surface features, phase constituents, and degradation performance of Ti/SnO2-Sb2Ox-TiO2 electrodes were investigated. The addition of TiO2 sol affected the microstructures of the electrodes and a uniform coating surface could be obtained at a proper sol concentration. TiO2 sol also caused deep oxidation of Sb and generated more adsorbed oxygen on the electrode surface. The Ti/SnO2-Sb2Ox-TiO2 electrodes modified with 10 mL/L TiO2 exhibited the best electrocatalytic performance and prolonged electrode service life, thanks to favorable surface features and well-dispersed TiO2 coating.
Article
Materials Science, Multidisciplinary
Siqi Liu, Jiahuan Chen, Dongdong Zhang, Yuxin Wang, Zhen He, Pingyi Guo
Summary: The study investigated the MAO treatment of 5052 aluminum alloy in silicate electrolytes and sealing of MAO films with SiO2 nanoparticles. Adding SiO2 nanoparticles effectively improved the corrosion and wear resistance of the MAO film. Optimal performance was achieved with the addition of 5.0 g/L SiO2.
Article
Chemistry, Multidisciplinary
Yuxin Wang, Jiahuan Chen, Yifan Yang, Zihan Liu, Hao Wang, Zhen He
Summary: This study develops nanostructured superhydrophobic titanium-based materials using a combined preparation method of laser marking and anodizing. The results show that the proposed method can enhance the corrosion resistance and mechanical stability of the surface's superhydrophobicity.
Editorial Material
Materials Science, Multidisciplinary
Jian Chen, Yanxin Qiao, Fanjiang Meng, Yuxin Wang
Article
Chemistry, Multidisciplinary
Xiaoli Wang, Guang Cheng, Yang Zhang, Yuxin Wang, Wenjun Liao, T. A. Venkatesh
Summary: Molecular dynamics simulations were used to investigate the diffusion process and microstructural evolution at the solid-liquid Al-Cu interfaces. The K-Means clustering algorithm was employed to identify and analyze the formation and composition of nanostructural features in different regions of the interface. The effects of annealing temperature on the microstructural evolution and mechanical strength of the interfaces were also investigated, and the failure location of the interface was confirmed through nanoindentation studies.
Article
Materials Science, Multidisciplinary
Zhidai Zhou, Jiahuan Chen, Chen Yu, Yuxin Wang, Yu Zhang
Summary: Investigating the failure mechanism of solder joints under different temperature conditions is crucial for ensuring the longevity of printed circuit boards (PCBs). This research utilized high- and low-temperature thermal shock tests to evaluate the stress and strain distribution of a PCB solder joint. The cross-section of the solder joint after thermal shock testing was examined through a 3D stereoscopic microscope and SEM with EDS. The microstructure and intermetallic compound (IMC) phase of the lead-free solder joint were also studied using XRD. Additionally, the finite element method was employed to simulate and analyze the behavior of the PCB solder joint under thermal shock. The findings demonstrate that thermal shock significantly impacts the reliability of solder joints, with actual cracks occurring in the area of maximum stress and strain concentration in the simulated solder joint. The brittle Cu6Sn5 and Cu3Sn phases at the interface accelerate the failure of solder joints, while limiting their growth can enhance solder joint reliability to some extent.
