Results 21 to 30 of about 27,124 (303)
A New Chapter in Ceramic Materials: High-entropy Ceramics
Jinshu shijieJiao XU, Miao BAI, Qiuwei XING
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Direct measurement of electrocaloric effect in lead-free Ba(SnxTi1-x)O3 ceramics [PDF]
, 2017 In this study, we report on investigation of the electrocaloric (EC) effect in lead-free Ba(SnxTi1-x)O3 (BSnT) ceramics with compositions in the range of 0.08 ≤ x ≤ 0.15 by the direct measurement method using a differential scanning calorimeter.
Dkhil, Brahim +6 more
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Dual-phase high-entropy ultra-high temperature ceramics
Journal of the European Ceramic Society, 2020 A series of dual-phase high-entropy ultrahigh temperature ceramics (DPHE-UHTCs) are fabricated starting from N binary borides and (5-N) binary carbides powders. >~99% relative densities have been achieved with virtually no native oxides. These DPHE-UHTCs consist of a hexagonal high-entropy boride (HEB) phase and a cubic high-entropy carbide (HEC ...
Mingde Qin +9 more
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High-entropy alumino-silicides: a novel class of high-entropy ceramics [PDF]
Science China Materials, 2019 High-entropy ceramics (HECs) are gaining significant interest due to their huge composition space, unique microstructure, and adjustable properties. Previously reported studies focus mainly on HECs with the multi-cationic structure, while HECs with more than one anion are rarely studied.
Tongqi Wen +4 more
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High-entropy high-hardness metal carbides discovered by entropy descriptors [PDF]
, 2018 High-entropy materials have attracted considerable interest due to the combination of useful properties and promising applications. Predicting their formation remains the major hindrance to the discovery of new systems.
Brenner, Donald W. +8 more
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Expanded microchannel heat exchanger: design, fabrication and preliminary experimental test [PDF]
, 2012 This paper first reviews non-traditional heat exchanger geometry, laser welding, practical issues with microchannel heat exchangers, and high effectiveness heat exchangers.
Brandemuehl, Michael J. +3 more
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APL Materials, 2022 As various property studies continue to emerge on high entropy and entropy-stabilized ceramics, we seek a further understanding of the property changes across the phase boundary between “high-entropy” and “entropy-stabilized” phases.
Christina M. Rost +9 more
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Phase structure tuned electrocaloric effect and pyroelectric energy harvesting performance of (Pb0.97La0.02)(Zr,Sn,Ti)O3 antiferroelectric thick films [PDF]
, 2015 In present work, (100)-oriented (Pb0.97La0.02)(Zr0.95-xSnxTi0.05)O3 antiferroelectric thick films with x=0.08, 0.20 and 0.38, were successfully fabricated. These compositions are located in orthorhombic phase region, the morphotropic phase boundary (MPB),
Mitsui T., Qi Zhang, Xihong Hao, Ye Zhao
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Superhard high-entropy AlB2-type diboride ceramics
Scripta Materialia, 2021 Hardness was measured for six different nominally pure and single-phase high-entropy diboride ceramics with the AlB structure that were produced by a two-step process. Most of the ceramics had relative densities greater than 99.5%. Vickers hardness average values ranged from 21.0 GPa to 25.4 GPa at a load of 9.81 N, while values increased to the range ...
Lun Feng +3 more
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Ultra-dense dislocations stabilized in high entropy oxide ceramics
Nature Communications, 2022 Dislocation engineering is important for designing structural materials. Here the authors demonstrate that a high-entropy oxide ceramic with a high density of edge dislocations can be stabilized by increasing the compositional complexity, resulting in ...
Yi Han +11 more
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