Article
Polymer Science
Chenping Zhang, Yugang Duan, Hong Xiao, Ben Wang, Yueke Ming, Yansong Zhu, Fugan Zhang
Summary: This paper investigates the interlaminar bond strength of laser in-situ consolidation CF/PEEK thermoplastic composites. The results show that porosity significantly affects the interlaminar shear strength, while there is no correlation between crystallinity and interlaminar shear strength. The interlaminar shear strength in the heated tool in-situ consolidation group is significantly higher than the constant pressure in-situ consolidation group.
Article
Materials Science, Multidisciplinary
Kai Li, Tyler Smith, William Asher, Alexis Flores-Betancourt, Artem A. Trofimov, Hsin Wang, Mingkan Zhang, Logan Kearney, Edgar Lara-Curzio, Soydan Ozcan, Vlastimil Kunc, Amit K. Naskar, Kashif Nawaz
Summary: The study finds that PETG composites produced through 3D printing have anisotropic thermal conductivity and low CTE at room temperature, making them potentially suitable for heat exchanger applications at low temperatures.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Ceramics
Yi-Fan Yan, Shu-Qing Kou, Hong-Yu Yang, Shi-Li Shu, Jian-Bang Lu
Summary: The nature of ceramic particles plays a decisive role in the performance of ceramic/metal composites. This study analyzed the effect of mono-particles and hybrid-particles on the thermal and mechanical characteristics of composites through experiments and finite element analysis. The results showed that the (TiC + TiB2)/Cu composite had higher thermal conductivity and better compression properties, while the TiB2/Cu composite demonstrated excellent wear resistance.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xinxin Wang, Zhihua Long, Wei Qian, Yunxia Ye, Fengze Dai, Yinqun Hua, Jie Cai
Summary: Novel composite ceramic GdPO4/GdTaO4 was designed by introducing GdTaO4 as second reinforcement phase into GdPO4 matrix. Results showed that GdPO4/GdTaO4 composite ceramics achieved excellent hardness, fracture toughness, and thermal conductivity at a doping concentration of 50 wt% due to grain refinement and scattering of phonons caused by the doped GdTaO4 phase. Therefore, GdPO4/GdTaO4 composite ceramics have potential as thermal barrier coatings materials.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Manufacturing
Ningning Yan, Qiangang Fu, Shuo Zhang, Jiaping Zhang, Jia Sun, Qingliang Shen
Summary: The study found that the thermal expansion coefficient and compressive strength of ZrC-C composites show certain regular changes after a certain number of thermal shock cycles; by coordinating component contents, the thermal shock resistance of the composites can be optimized.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Polymer Science
SoonKook Hong, Vistasp M. Karbhari
Summary: This paper investigates the residual mechanical properties and damage states of ambient cured wet layup carbon fiber reinforced epoxy composites exposed to elevated temperature regimes. The results show that high temperature conditions lead to the deterioration of resin characteristics and the bond between fibers and resin. This is a weakness in layered composites formed from unidirectional fabric architectures. Changes in failure modes are correlated through microscopy to damage progression at the fiber-matrix interface and resin levels. Differential scanning calorimetry is used to determine transitions in glass transition temperature, which indicate changes in damage mechanisms.
Article
Nanoscience & Nanotechnology
Xiaozhou Yang, Brittany L. Bonnett, Glenn A. Spiering, Hannah D. Cornell, Bradley J. Gibbons, Robert B. Moore, E. Johan Foster, Amanda J. Morris
Summary: The aspect ratio of filler particles significantly affects the mechanical properties of particle-reinforced polymer composites, with increasing aspect ratio and concentration leading to higher elastic and dynamic moduli. However, beyond a certain particle loading threshold, these properties start to decrease. The mechanical reinforcement in the system mainly comes from efficient load transfer between particles and the matrix in the particle orienting direction, as shown by the failure of the percolation model and the Cox model to adequately fit the data. The thermal stability of the composite films is enhanced with the addition of MOF particles due to their high thermal degradation temperature and restricted polymer chain mobility.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Nina Li, Yucong Wei, Fang Ye, Laifei Cheng, Jie Zhou, Shuai Yang, Qing Zhang, Litong Zhang
Summary: This study fabricated unidirectional silicon carbide fiber-reinforced SiC matrix composites with a CVI BN interphase using the polymer infiltration-pyrolysis process. The effects of the anisotropic distribution of SiC fibers on the mechanical properties, thermophysical properties, and electromagnetic properties were investigated. The results showed that the axial direction of SiC fibers influenced the load-bearing capability of the fibers, while the perpendicular direction affected the interfacial bonding strength and matrix cracking stress. The thermal expansion behavior and electromagnetic shielding effectiveness also showed directional dependence.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Dowon Song, Junseong Kim, Guanlin Lyu, Janghyeok Pyeon, Hak-Beom Jeon, Yoon-Suk Oh, Taeseup Song, Ungyu Paik, Yeon-Gil Jung
Summary: The study investigated the effects of substituting A and B cations in A3BO7 compounds on their thermophysical properties by imposing a significant mass difference on the substituents. YYNT ceramics exhibited low thermal conductivity and excellent thermophysical properties, making them promising candidates for new thermal barrier materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Jinhao Jia, Cong Li, Qiang Chen, Shuxin Bai, Jin Chang, Degan Xiong, Mingqi Gao, Shun Li, Jin Xiao
Summary: 3D C-f/SiC-Al composites were fabricated by infiltrating liquid Al-Si alloy into porous 3D C-f/SiC preform. Increasing the silicon carbide volume fraction resulted in lower thermal conductivity and thermal expansion coefficient, and the composites exhibited significant anisotropy.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Meng Zhang, Junnan Hou, Daxin Li, Bin Liang, Zibo Niu, Qian Zhang, Zhihua Yang, Dechang Jia, Delong Cai, Xiaoming Duan, Peigang He, Yu Zhou
Summary: This study investigated the phase composition, microstructural evolution, mechanical properties, thermophysical properties, and thermal shock resistance of Mo-SiBCN metal-ceramic composites with different sintering additives. The competition of reaction products between Mo and SiBCN was detected, with the increase in SiBCN content leading to a decrease in bulk density, elastic modulus, and bending strength, but an increase and subsequent decrease in hardness. The addition of sintering additives significantly improved the bending strength and hardness of the composites. The residual bending strength after thermal shock varied with SiBCN content, showing both increases and decreases.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xupeng Lian, Wenrui Xu, Peng Zhang, Wenxian Wang, Lei Xie, Xiping Chen
Summary: This paper introduces a new type of neutron absorption material, SiC/Gd2O3/6061Al composites (SGAC), used for the storage and transportation of spent fuel in nuclear power plants. The optimal composition of the composites was determined through neutron shielding and mechanical property simulations. The study investigates the effect of SiC content on neutron shielding performance and mechanical properties through numerical simulations. SGAC samples with varying SiC content were prepared using SPS technology, and their thermal neutron shielding properties, microstructure, and mechanical properties were analyzed through tests and characterization techniques. The results demonstrate that (0 wt%-25 wt%) SiC/5 wt% Gd2O3/6061Al SGAC with a thickness of 5 mm exhibits neutron shielding performance above 99.5%. Nanometer Gd2O3 particles and micron SiC particles provide reinforcement effects within the Al matrix. Furthermore, the interface between the two phases generates a new phase Al4SiC4, facilitating the connection of interfaces. (15 wt% SiC+5 wt% Gd2O3)/6061Al shows superior mechanical properties with a tensile strength of 196 MPa and an elongation of 11%.
CERAMICS INTERNATIONAL
(2023)
Review
Materials Science, Multidisciplinary
Nur Izzah Nabilah Haris, Mohamad Zaki Hassan, R. A. Ilyas, Mohamed Azlan Suhot, S. M. Sapuan, Rozzeta Dolah, Roslina Mohammad, M. R. M. Asyraf
Summary: Research has shown that natural fiber reinforced hybrid composites exhibit excellent dynamic mechanical properties. Lignocellulosic fibers are widely used as reinforcements, and the hybridization of multiple reinforcing fibers has synergistic effects on the properties of the hybrid composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Chemical
Jinping Yin, Xuan Wang, Weiqiang Tang, Xiaofei Xu, Shuangliang Zhao, Fu-zhen Xuan
Summary: Due to the multiscale structural characteristics and complex internal coupling, evaluating the mechanical properties of polymer composites based on their microstructural information is challenging. In this study, a multiscale method is proposed to predict the mechanical properties of polymer composites by considering the contributions from the polymer matrix and particle filling, as well as particle-matrix interactions.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Physical
Nurul Hanan Taharuddin, Ridhwan Jumaidin, Rushdan Ahmad Ilyas, Zatil Hazrati Kamaruddin, Muhd Ridzuan Mansor, Fahmi Asyadi Md Yusof, Victor Feizal Knight, Mohd Nor Faiz Norrrahim
Summary: The study assessed the properties of agar-containing thermoplastic sago starch (TPSS) at different loadings. The results showed that adding agar significantly improved the mechanical properties and thermal stability of starch-based thermoplastic blends, but slightly increased moisture absorption. The TPSS/agar blend has the potential to be used as a biodegradable material.
