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Effect of reaction routes on the porosity and permeability of porous high entropy(Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 for transpiration cooling
Alternative TitleEffect of reaction routes on the porosity and permeability of porous high entropy (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 for transpiration cooling
Heng Chen1; Zifan Zhao2; Huimin Xiang2; FuZhi Dai2; Jie Zhang3; Shaogang Wang3; Jiachen Liu1; Yanchun Zhou2
2020
Source Publication材料科学技术:英文版
ISSN1005-0302
Volume000Issue:003Pages: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)B6 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)B6,including boron thermal reduction and borocarbon thermal reduction.The as-prepared porous HE(Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 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)B6 promising as a candidate porous media for various transpiration cooling applications.
KeywordHigh entropy ceramics (Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 Transpiration cooling Porous UHTCs In-situ reaction synthesis
Indexed ByCSCD
Language中文
CSCD IDCSCD:6664511
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/145299
Collection中国科学院金属研究所
Affiliation1.Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education,School of Materials Science and Engineering,Tianjin University
2.Science and Technology on Advanced Functional Composite Laboratory,Aerospace Research Institute of Materials&Processing Technology
3.中国科学院金属研究所
Recommended Citation
GB/T 7714
Heng Chen,Zifan Zhao,Huimin Xiang,et al. Effect of reaction routes on the porosity and permeability of porous high entropy(Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 for transpiration cooling[J]. 材料科学技术:英文版,2020,000(003):80-85.
APA Heng Chen.,Zifan Zhao.,Huimin Xiang.,FuZhi Dai.,Jie Zhang.,...&Yanchun Zhou.(2020).Effect of reaction routes on the porosity and permeability of porous high entropy(Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 for transpiration cooling.材料科学技术:英文版,000(003),80-85.
MLA Heng Chen,et al."Effect of reaction routes on the porosity and permeability of porous high entropy(Y0.2Yb0.2Sm0.2Nd0.2Eu0.2)B6 for transpiration cooling".材料科学技术:英文版 000.003(2020):80-85.
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