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Effect of reaction routes on the porosity and permeability of porous high entropy (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6 for transpiration cooling
Chen, Heng; Zhao, Zifan; Xiang, Huimin; Dai, Fu-Zhi; Zhang, Jie; Wang, Shaogang; Liu, Jiachen; Zhou, Yanchun
2020-02-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume38Pages:80-85
AbstractTranspiration cooling technique is a reusable and high-efficiency thermal protection system (TPS), which is potential to improve the reusability and security of re-entry space vehicle. Relatively low density, high permeability and high porosity are general requirements for porous media of transpiration cooling systems. In this work, a new porous high entropy metal hexaboride (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6 is designed and prepared by the in-situ reaction/partial sintering method. Two reaction routes are designed to synthesize (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6, including boron thermal reduction and borocarbon thermal reduction. The as-prepared porous HE (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6 ceramics possess homogeneous microstructure and exhibit low density, high porosity, high compressive strength and high permeability. The combination of these properties makes porous HE (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6 promising as a candidate porous media for various transpiration cooling applications. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
DOI10.1016/j.jmst.2019.09.006
WOS IDWOS:000503164100010
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/83148
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Chen, Heng,Zhao, Zifan,Xiang, Huimin,et al. Effect of reaction routes on the porosity and permeability of porous high entropy (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6 for transpiration cooling[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,38:80-85.
APA Chen, Heng.,Zhao, Zifan.,Xiang, Huimin.,Dai, Fu-Zhi.,Zhang, Jie.,...&Zhou, Yanchun.(2020).Effect of reaction routes on the porosity and permeability of porous high entropy (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6 for transpiration cooling.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,38,80-85.
MLA Chen, Heng,et al."Effect of reaction routes on the porosity and permeability of porous high entropy (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B-6 for transpiration cooling".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 38(2020):80-85.
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