Results 1 to 10 of about 14,999,085 (143)

Exploration of high entropy ceramics (HECs) with computational thermodynamics - A case study with LaMnO3±δ [PDF]

Materials & Design, 2019
The concept of the new category materials high entropy ceramics (HECs) has been proposed several years ago, which is directly borrowed from high entropy alloys (HEAs). It quickly attracts a lot of interests and displays promising properties.
Yu Zhong, Hooman Sabarou, Xiaotian Yan, Mei Yang, Michael C. Gao, Xingbo Liu, Richard D. Sisson, Jr   +6 more
doaj   +4 more sources

A review of high-entropy ceramics preparation methods, properties in different application fields and their regulation methods

Journal of Materials Research and Technology
High-entropy alloys (HEAs) provides a new way to develop new materials with adjustable performance due to their unique cocktail effect. Inspired by HEAs, a ceramic material with high-entropy effect has been developed, which was named high-entropy ...
Jiale Zhang, Jinglong Liang, Hui Li, Yu Yang, Dongxing Huo, Chang Liu   +5 more
doaj   +4 more sources

Lattice‐Distortion‐Driven Reduced Lattice Thermal Conductivity in High‐Entropy Ceramics [PDF]

Advanced Science
Lattice distortion and mass fluctuation are two long‐believed potential mechanisms for the reduced lattice thermal conductivity in high‐entropy ceramics (HECs). However, related studies remain unclear.
Yiwen Liu, Yaming Fu, Fangchao Gu, Hulei Yu, Lei Zhuang, Yanhui Chu   +5 more
doaj   +3 more sources

Tribological Performance of High-Entropy Coatings (HECs): A Review [PDF]

Materials, 2022
Surface coatings that operate effectively at elevated temperatures provide compatibility with critical service conditions as well as improved tribological performance of the components.
Navid Sharifi, Payank J Patel, Richard Chromik   +2 more
exaly   +3 more sources

Design and synthesis of chemically complex ceramics from the perspective of entropy

Materials Today Advances, 2020
High-entropy ceramics (HECs) have rapidly expanded from high-entropy oxides to high-entropy ultrahigh temperature ceramics/coatings and have drawn extensive attention in the field of ceramics.
J. Liu, G. Shao, D. Liu, K. Chen, K. Wang, B. Ma, K. Ren, Y. Wang   +7 more
doaj   +3 more sources

Short-range order in high entropy carbides [PDF]

Nature Communications
High-entropy carbides (HECs) are a new class of materials with properties that are promising for applications in extreme environments, involving high temperature, corrosion, and high ion-flux.
Shuguang Wei, Muhammad Waqas Qureshi, Jingrui Wei, Longfei Liu, Xuanxin Hu, Jianqi Xi, Siamak Attarian, Ranran Su, Hongliang Zhang, Evan Willing, Xudong Wang, Kumar Sridharan, Paul M. Voyles, John H. Perepezko, Izabela Szlufarska   +14 more
doaj   +2 more sources

Superhard bulk high-entropy carbides with enhanced toughness via metastable in-situ particles [PDF]

Nature Communications, 2023
Despite the extremely high hardness of recently proposed high-entropy carbides (HECs), the low fracture toughness limits their applications in harsh mechanical environment. Here, we introduce a metastability engineering strategy to achieve superhard HECs
Jiaojiao Hu, Qiankun Yang, Shuya Zhu, Yong Zhang, Dingshun Yan, Kefu Gan, Zhiming Li   +6 more
doaj   +2 more sources

Fundamentals of Thermal Transport and Energy Conversion in Ultra-High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties. [PDF]

Adv Sci (Weinh)
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Pei Z, Li Y, Xing J, Zhu Y, Zhang R, Wu H, Qin Z, Pei G, Li M.   +8 more
europepmc   +2 more sources

Beyond Single-Active Sites: The Emergence of High-Entropy Perovskites in Energy and Environment Catalysis. [PDF]

ChemSusChem
This review examines high‐entropy perovskites (HEPs) as a promising catalyst platform for energy and environmental applications. The focus is on configurational entropy engineering, design and synthesis, and computational understanding. These materials possess tunable active sites, enhanced stability, and improved electronic interactions, leading to ...
Aravinthkumar K, Lin PY, Hsieh SL, Hsieh S.   +3 more
europepmc   +2 more sources

High-entropy rare-earth diborodicarbide: A novel class of high-entropy (Y0.25Yb0.25Dy0.25Er0.25)B2C2 ceramics

Journal of Advanced Ceramics, 2023
A novel class of high-entropy rare-earth metal diborodicarbide (Y0.25Yb0.25Dy0.25Er0.25)B2C2 (HE-REB2C2) ceramics was successfully fabricated using the in-situ reactive spark plasma sintering (SPS) technology for the first time.
Huidong Xu, Longfei Jiang, Ke Chen, Qing Huang, Xiaobing Zhou   +4 more
doaj   +1 more source