Article
Engineering, Environmental
Congmei Lin, Liangfei Bai, Liyuan Wei, Ruqin Liu, Shiliang Huang, Cui Zhang, Xiaoqing Tu, Zhijian Yang, Feiyan Gong, Chengcheng Zeng, Ling Ding, Liping Pan, Yushi Wen
Summary: This study introduced zirconium tungstate (ZrW2O8) with negative thermal expansion (NTE) into polymer bonded explosives (PBXs) to modify their thermal expansion. The addition of 10 wt% ZrW2O8 effectively reduced the coefficient of thermal expansion and strain of the PBXs, and improved their thermal shock resistance, which is beneficial for the safety and reliability of weapon systems.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Mohammad S. Islam, Wenkai Chang, Zhao Sha, Jiawei Wang, Shuying Wu, L. R. Francis Rose, Anthony J. Kinloch, Chun H. Wang
Summary: In this study, a new method of mitigating cryogenic microcracking in CFRPs is reported using ZrW2O8 nanoparticles, which have a negative thermal expansion, to reduce thermal residual stresses and enhance the fracture energy of the epoxy matrix. The addition of 1 wt% polydopamine-functionalized ZrW2O8 nanoparticles increases the fracture energy of the matrix material by 140%, reduces the coefficient of thermal expansion by 20%, and enhances the interlaminar fracture energy of the resulting CFRP by about 100% at -196°C. The modified matrix successfully prevents microcracking at -196°C in a blocked cross-ply CFRP laminate with a [04/908/04] fibre architecture.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Physical
Pengcheng Wang, Jinghuang Lin, Zhiquan Xu, Bin Qin, Jian Cao, Jicai Feng, Junlei Qi
Summary: A three-dimensional Sc2W3O12 interpenetrating network structure is proposed to overcome the limited content and agglomeration issues in the application of negative thermal expansion (NTE) materials in brazing. The Sc2W3O12 materials are evenly distributed in the brazing seam and the volume fraction is increased to 20%. Finite element analysis shows that the residual stress in X directions is significantly reduced, and the maximum shear strength is improved by 1.3 times compared to joints without a network structure and 4 times compared to joints directly brazed by AgCuTi. The study presents a new method to enhance the application of NTE materials in metal composites.
Article
Optics
Sajan Thomas, Bibily Baby, Jifi Jose, Ann Lizbathu, P. R. Biju, Cyriac Joseph
Summary: Rare-earth based phosphors are important for enhancing the quality of phosphor-converted LEDs. This study investigates the luminescence properties of ZrW2O8 doped with Tb3+ and finds that the material has high thermal stability and can be used as a green component for producing cold white LEDs.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Chang Zhou, Yongxiao Zhou, Saiyue Liu, Lianyu Zhang, Peiyu Song, Qiang Zhang, Biyuan Ma, Gaohui Wu
Summary: Hybrid Al matrix composites reinforced with ZrW2O8 and SiC reinforcements were fabricated and the effect of SiC content on microstructure, phase composition, thermal expansion, and mechanical properties was investigated. The results showed that composites with a certain SiC content exhibited the best bending strength and near-zero thermal expansion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Lin Chen, Jiankun Wang, Baihui Li, Keren Luo, Jing Feng
Summary: This study investigates the determinant mechanisms of thermal expansion and conductivity in symbiotic ScTaO4/SmTaO4 composites as thermal/environmental barrier coatings. The weak bonding and interface stress among composite grains manipulate the coefficient of thermal expansion, while the interface thermal resistance reduces the thermal conductivity by depressing phonon speed and scattering phonons. The study highlights the potential of artificially regulating the thermal expansion of tantalates and using multiscale effects to manipulate thermal transports of different materials.
JOURNAL OF ADVANCED CERAMICS
(2023)
Article
Engineering, Multidisciplinary
Chang Zhou, Yongxiao Zhou, Qiang Zhang, Qingyu Meng, Lianyu Zhang, Equo Kobayashi, Gaohui Wu
Summary: The study developed a near-zero thermal expansion ZrW2O8/Al-Si composite with three-dimensional structure, achieved through pressure infiltration for dense structure and mild interface reaction. The resulting composite has ultra-low thermal expansion, making it ideal for precision instruments and microelectronics components.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Zhenjun Wang, De Tong, Yihao Zhang, Qipeng Liu, Fang Wang, Yingfeng Zhang
Summary: The cooling-induced thermal shrinkage behavior and residual stress in the fabrication of 2.5D woven fiber reinforced Al composites were investigated using numerical and experimental approaches. Microscale and mesoscale finite element (FE) models were established to simulate the thermal shrinkage and residual stress. The experimental results verified the accuracy of the FE simulations. The study also evaluated the effects of fabric structure on residual stresses and macroscopic shrinkage properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Zheng Sun, Zhongde Shan, Tianmin Shao, Jiahua Li, Xiaochuan Wu
Summary: This study investigated the coefficients of thermal expansion of 3D carbon fiber reinforced SiC matrix composites, using representative volume element models at microscale, void/matrix models, and mesoscale models. The research found that voids were effective in reducing the CTE of the composites, and selecting appropriate fiber volume fractions could achieve equal inplane and out-of-plane CTEs. The multiscale models developed in this study can be used to predict the thermal expansion behaviors of other complex structure composites.
CERAMICS INTERNATIONAL
(2021)
Article
Multidisciplinary Sciences
Hua Xie, Mingde Qin, Min Hong, Jiancun Rao, Miao Guo, Jian Luo, Liangbing Hu
Summary: High-entropy ceramics and their composites have excellent properties, but their unique characteristics make it difficult to sinter them. This study presents a rapid liquid phase-assisted ultrahigh-temperature sintering strategy, successfully preparing a high-entropy metal diboride/boron carbide composite with high hardness.
Article
Chemistry, Physical
Pengcheng Wang, Zhiquan Xu, Xuefeng Liu, Haohan Wang, Bin Qin, Jinghuang Lin, Jian Cao, Junlei Qi, Jicai Feng
Summary: This study proposes a novel strategy of incorporating a carbon barrier layer between the active filler and Sc2W3O12 materials, which effectively promotes the negative thermal expansion behavior of Sc2W3O12 and enhances the shear strength of brazed joints. The results provide insights for expanding the application of NTE materials in brazing processes and contribute to the development of low-CTE composites.
Article
Materials Science, Multidisciplinary
Atte Antikainen, Joni Reijonen, Juha Lagerbom, Matti Lindroos, Tatu Pinomaa, Tomi Lindroos
Summary: This paper proposes a segregation-based mechanism for residual stress formation and evaluates it computationally. It also proposes an experimental setup for rapid screening of residual stress formation in various alloys. The results can simplify material development of metal alloys tailored for additive manufacturing.
Article
Energy & Fuels
Sheng Xu, Nana Jing, Huming Hao, Mengyao Wang, Zhiqiang Wang, Liangxuan Yang, Guan Wang, Jianyue Chen, Guixin Wang
Summary: By modifying NCM622 with negative-thermal-expansion material ZrW2O8, this study achieved superior cycle performance and rate capability, showcasing a potential alternative for improving the stability of energy materials through heat and deformation management.
Article
Multidisciplinary Sciences
Michal Delkowski, Christopher T. G. Smith, Jose V. Anguita, S. Ravi P. Silva
Summary: Future space travel requires lightweight and robust structural materials that can withstand extreme conditions and multiple entries into orbit. Current inorganic materials cannot meet these requirements. Carbon fiber reinforced polymers (CFRPs), although highly stable, have limitations due to environmental instabilities and electrostatic discharge. To improve space travel and structural engineering, a more robust and improved CFRP is needed. In this study, a superlattice nano-barrier-enhanced CFRP with a density of approximately 3.18 g/cm³ is presented. The composite exhibits enhanced radiation resistance and electrical conductivity, while maintaining ultra-dimensional stability even after temperature cycles.
Article
Materials Science, Multidisciplinary
Hongbin Ma, Zhuohua Li, Jinhui Wang
Summary: The effect of Y content on coefficient of thermal expansion (CTE) of Mg-1Al-xY alloys was systematically studied, showing that CTE decreases with increasing Y content, with Mg-1Al-6Y alloy having the most suitable grain size and uniform distribution of second phase. Residual stress in the alloys was proved to decrease CTE, while multiple thermal cycles reduced this stress and increased CTE and stability. Thermal cycling also had a significant effect on the intensity of texture in Mg alloys.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Multidisciplinary
Yuehong Zhang, Vijay Kumar Thakur, Yuzhan Li, Thomas F. Garrison, Zhenhua Gao, Jiyou Gu, Michael R. Kessler
MACROMOLECULAR MATERIALS AND ENGINEERING
(2018)
Article
Polymer Science
Yuehong Zhang, Yuzhan Li, Vijay Kumar Thakur, Zhenhua Gao, Jiyou Gu, Michael R. Kessler
POLYMER INTERNATIONAL
(2018)
Article
Chemistry, Multidisciplinary
Yuehong Zhang, Yuzhan Li, Vijay Kumar Thakur, Liwei Wang, Jiyou Gu, Zhenhua Gao, Bo Fan, Qiong Wu, Michael R. Kessler
Article
Chemistry, Multidisciplinary
Samy A. Madbouly, Michael R. Kessler
Review
Polymer Science
Rafael L. Quirino, Khristal Monroe, Carl H. Fleischer, Eletria Biswas, Michael R. Kessler
Summary: This review discusses recent advancements in bio-based thermosets with a focus on resins prepared from vegetable oils, natural phenolic compounds, and other recently developed thermosetting systems. The article concludes with a critical perspective on the environmental implications of bio-based thermosets.
POLYMER INTERNATIONAL
(2021)
Article
Engineering, Multidisciplinary
Jyani S. Vaddi, Stephen D. Holland, Michael R. Kessler
Summary: This paper describes a method to calculate the loss modulus of a viscoelastic polymer material at high frequencies based on vibrothermography. By measuring the surface temperature of the polymer coating and by solving the heat transfer equation, the heat intensity dissipated at the polymer is estimated. The measurement method is demonstrated with two different polymer materials at several frequencies and compared with results from dynamic mechanical analysis experiments.
Article
Multidisciplinary Sciences
Yuzhan Li, Monojoy Goswami, Yuehong Zhang, Tuan Liu, Jinwen Zhang, Michael R. Kessler, Liwei Wang, Orlando Rios
SCIENTIFIC REPORTS
(2020)
Review
Materials Science, Multidisciplinary
Yuzhan Li, Veronica Ambrogi, Pierfrancesco Cerruti, Monojoy Goswami, Zhou Yang, Michael R. Kessler, Orlando Rios
Summary: Liquid crystalline epoxy networks (LCENs) are a type of functional materials that combine the properties of liquid crystals and epoxy networks, showing unique thermal, mechanical, and stimuli-responsive characteristics. They are widely used in various applications such as sensors, coatings, and soft robotics. By understanding the structure-processing-property relationships, materials engineers can develop LCENs with desired functionalities. Research on LCENs continues to advance, with focus on advanced manufacturing and multi-functional design, providing novel materials for future technologies.
INTERNATIONAL MATERIALS REVIEWS
(2022)
Article
Materials Science, Multidisciplinary
Yuehong Zhang, Mengjiao Zhai, Fei Ma, Yuzhan Li, Bin Lyu, Tuan Liu, Zhenhua Gao, Liwei Wang, Dan Vincent, Michael R. Kessler
Summary: Eugenol-based epoxy resins were synthesized and cured with a eugenol-derived diamine, showing comparable properties to petroleum-based counterparts. The study demonstrates the potential of eugenol as a renewable resource for developing sustainable polymers with high value-added chemicals.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Correction
Polymer Science
Yuzhan Li, Jong K. Keum, Jun Wang, Naisheng Jiang, Wim Bras, Michael R. Kessler, Orlando Rios
Article
Polymer Science
Yuzhan Li, Jong K. Keum, Jun Wang, Naisheng Jiang, Wim Bras, Michael R. Kessler, Orlando Rios
Summary: Liquid crystalline elastomers exhibit unique shape memory behavior due to the combination of liquid crystalline orientation and rubber elasticity. Multiscale structural characterization upon deformation is crucial to understanding the structure-property relationships of these materials. Selective deuteration enables an improved neutron scattering contrast between different domains in the LCE, revealing the presence of highly aligned amorphous domains and the formation of structures in the micrometer scale.
Article
Nanoscience & Nanotechnology
Mahjabeen Javed, Tyler Corazao, Mohand O. Saed, Cedric P. Ambulo, Yuzhan Li, Michael R. Kessler, Taylor H. Ware
Summary: The inclusion of semicrystallinity in liquid crystal elastomers enhances mechanical properties and allows for programmable director profiles through directed self-assembly.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Samy A. Madbouly, Ying Xia, Michael R. Kessler
ACS APPLIED POLYMER MATERIALS
(2020)
Article
Chemistry, Physical
Yuzhan Li, Yuehong Zhang, Monojoy Goswami, Dan Vincent, Liwei Wang, Tuan Liu, Kai Li, Jong K. Keum, Zhenhua Gao, Soydan Ozcan, Kyle R. Gluesenkamp, Orlando Rios, Michael R. Kessler
Article
Chemistry, Multidisciplinary
Chengyun Liu, Junna Xin, Jihuai Tan, Tuan Liu, Michael R. Kessler, Jinwen Zhang
