文献类型：期刊文献

英文题名：Influence of Cr content on sintering, textured structure, and properties of (Hf, Zr, Ta, Cr, Ti)B-2 high-entropy boride ceramics

作者：Zhang, Yan[1];Shan, Lei[1];Chai, Yan-Fu[1];Guo, Wei-Ming[2];Zhang, Tian-Qi[1];Xu, Liang[2];Cong, Jin-Ling[1];Lin, Hua-Tay[2];Wei, Lian-Yun[3];Ma, Wei-Min[3]

机构：[1]Shaoxing Univ, Sch Mech & Elect Engn, Shaoxing 312000, Peoples R China;[2]Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Peoples R China;[3]Zhejiang Hailiang CO LTD, Shaoxing 312000, Peoples R China

年份：2023

卷号：49

期号：10

起止页码：16029

外文期刊名：CERAMICS INTERNATIONAL

收录：SCI-EXPANDED(收录号：WOS:000970479700001)、、WOS

基金：Acknowledgements This work was financially supported by the Research Start-up Funds of Shaoxing University (Grant No. 20225004 and 20210049) , General scientific research Project of Zhejiang Education Department (Grant No. Y202248367) , Post-doctoral fund of Shaoxing University (Grant No.08220101030) , University-level general research projects of Shaox-ing University (Grant No.2022LG007) , National Natural Science Foun-dation of China (Grant No. 52072077 and 51832002) , Local Innovative and Research Team Project of Guangdong Pearl River Talents Program (Grant No. 2017BT01C169) and Zhejiang Provincial Natural Science Foundation of China (Grant No. LGG21E05000) .

语种：英文

外文关键词：Cr content; Textured structure; High-entropy boride ceramics; Microstructure; Mechanical properties

外文摘要：In order to provide insights into the influence of Cr content on the microstructure and corresponding properties of (Hf, Zr, Ta, Cr, Ti)B-2, the effects of 10 at.% to 30 at.% Cr contents on texture development, phase composition, microstructure, and mechanical properties of (Hf, Zr, Ta, Cr, Ti)B-2, which were prepared via a combination of boro/carbothermal reduction and SPS, were investigated in this study. The results showed that (Hf, Zr, Ta, Cr, Ti) B-2 added with 15 at.% Cr content samples formed a textured microstructure due to the formation of CrB in the (Hf, Zr, Ta, Cr, Ti)B-2 high-entropy boride powder. With the increase of Cr content up to 30 at.%, the density, grain size, and fracture toughness of (Hf, Zr, Ta, Cr, Ti)B-2 high entropy boride ceramics increased, then for higher content, they decreased, and tended to remain constant. The hardness of (Hf, Zr, Ta, Cr, Ti)B-2 decreased with the increase of Cr content. The (Hf, Zr, Ta, Cr, Ti)B-2 with 15 at.% Cr content possessed the best comprehensive mechanical performance (Hv(0.2): TS:26.9 +/- 0.8 GPa, SS: 26.5 +/- 0.6 GPa; K-Ic: TS:4.21 +/- 0.46 MPa.m1/2, SS: 3.16 +/- 0.18 MPa.m1/2) due to a combination of high relative density and unique textured structure.