Preparation and properties of ZrO_(2)-strengthened porous mullite insulation materials using Y_(2)O_(3) additive

作     者：Wang-zhi Yu Yi-hong Shi Ping Liu Yong-wan Wu Cheng-hao Song Xian-gong Deng Xiang Ding Song-lin Ran Yi Zhang Hai-jun Zhang Hai-liang Deng Wang-zhi Yu;Yi-hong Shi;Ping Liu;Yong-wan Wu;Cheng-hao Song;Xian-gong Deng;Xiang Ding;Song-lin Ran;Yi Zhang;Hai-jun Zhang;Hai-liang Deng

作者机构：Advanced Ceramics Research CenterSchool of Materials Science and EngineeringAnhui University of TechnologyMa'anshan 243002AnhuiChina The State Key Laboratory of Refractories and MetallurgyWuhan University of Science and TechnologyWuhan 430081HubeiChina 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2024年第31卷第6期

页      面：1514-1521页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the Natural Science Foundation of Anhui Provincial Education Department(2023AH051130 and KJ2021ZD0040) the University Synergy Innovation Program of Anhui Province(GXXT-2019-015) National Natural Science Foundation of China(51972002) the Student Research Training Program(SRTP)of Anhui University of Technology(S202310360191) National Innovation and Entrepreneurship Training Program for College Students(202210360023) 

主　　题：Porous mullite insulation material Zirconium oxide Y_(2)O_(3) Mechanical property Heat conductivity 

摘      要：ZrO_(2)-strengthened porous mullite insulation materials were prepared by foaming technology utilizing ZrSiO_(4) and Al_(2)O_(3) as primary materials and Y_(2)O_(3) as an *** effects of Y_(2)O_(3) contents on the phase composition,microstructure,mechanical properties,and heat conductivity of the porous mullite insulation materials were investigated.A suitable Y_(2)O_(3) content could promote phase transition of monoclinic ZrO_(2)(m-ZrO_(2))to tetragonal ZrO_(2)(t-ZrO_(2)),reduce pore size,and improve the strengths of as-prepared *** cold crushing strength and bending strength of as-prepared specimens with a 119µm spherical pore size using 6 wt.%Y_(2)O_(3) were 35.2 and 13.0 MPa,respectively,with a heat conductivity being only 0.248 W/(m K).