{"id":650,"date":"2024-03-25T14:18:31","date_gmt":"2024-03-25T06:18:31","guid":{"rendered":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/?post_type=paper&#038;p=650"},"modified":"2024-05-16T15:19:06","modified_gmt":"2024-05-16T07:19:06","slug":"scb2c2-the-first-high-damage-tolerant-ultra-high-temperature-ceramic-withhydrolysis-resistance","status":"publish","type":"paper","link":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/paper\/scb2c2-the-first-high-damage-tolerant-ultra-high-temperature-ceramic-withhydrolysis-resistance\/","title":{"rendered":"ScB2C2: The first high damage tolerant ultra-high temperature ceramic withhydrolysis resistance"},"content":{"rendered":"\n<p><strong>Author:<\/strong> Hao Chen, Yueming Li, Yawen Guo, Depeng Ji,Li Tian, Yiwang Bao, Wenfei Li, Yunhui Li,Qingming Xu, Jianwei Zhu, Guorui Zhao<\/p>\n\n\n\n<p><strong>Journal:<\/strong>Journal of the European Ceramic Society<\/p>\n\n\n\n<p><strong>DOI:<\/strong><a href=\"https:\/\/doi.org\/10.1016\/j.jeurceramsoc.2024.01.050\">https:\/\/doi.org\/10.1016\/j.jeurceramsoc.2024.01.050<\/a><\/p>\n\n\n\n<p><strong>Abstract \/\u00a0\u6458\u8981<\/strong><\/p>\n\n\n\n<p>The first high damage resistant ultra-high temperature ceramic ScB2C2 with<br \/>excellent hydrolysis resistance was successfully prepared through boron carbon thermal<br \/>reduction and hot pressing sintering using Sc2O3, B4C and graphite as raw materials.<br \/>The Vickers hardness, flexural strength, fracture toughness, Young\u2019s modulus, shear<br \/>modulus, bulk modulus and Poisson\u2019s ratio of as-prepared ScB2C2 ceramic are 6.0 \u00b1<br \/>0.2 GPa, 246 \u00b1 17 MPa, 4.11 \u00b1 0.18 MPa\u00b7m1\/2, 240 GPa, 101 GPa, 127 GPa and 0.18,<br \/>respectively. In the a-b plane (B2C2 sheet) and along the c-axis direction, ScB2C2<br \/>exhibits extremely strong anisotropy of chemical bonds and elastic properties. The high<br \/>residual strength, damage tolerance factor Dt and fracture toughness to strength ratio<br \/>KIc\/\u03c3f indicates that ScB2C2 has excellent damage tolerance. In addition, ScB2C2<br \/>displayed remarkable thermal shock resistance and hydrolysis resistance. These unique<br \/>features endow ScB2C2 with significant potential for future ultra-high temperature<br \/>applications<\/p>\n\n\n\n<p><strong>Keyword \/\u00a0\u5173\u952e\u8bcd<\/strong><\/p>\n\n\n\n<p>ScB2C2, Crystal structure, Mechanical properties, Damage tolerance, Hydrolysis<\/p>\n\n\n\n<p>resistance<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"565\" height=\"359\" src=\"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-content\/uploads\/sites\/20\/2024\/03\/\u9648\u6d69\u8bba\u6587.jpg\" alt=\"\" class=\"wp-image-651\" srcset=\"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-content\/uploads\/sites\/20\/2024\/03\/\u9648\u6d69\u8bba\u6587.jpg 565w, https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-content\/uploads\/sites\/20\/2024\/03\/\u9648\u6d69\u8bba\u6587-300x191.jpg 300w\" sizes=\"(max-width: 565px) 100vw, 565px\" \/><\/figure>\n","protected":false},"featured_media":651,"template":"","acf":[],"_links":{"self":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/paper\/650"}],"collection":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/paper"}],"about":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/types\/paper"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/media\/651"}],"wp:attachment":[{"href":"https:\/\/frontbasic.sslab.org.cn\/ceramics\/wp-json\/wp\/v2\/media?parent=650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}