Properties of a reaction-bonded β-SiAlON ceramic doped with an FeMo alloy for application to molten aluminum environments

作     者：Yan-jun Li Hai-liang Yu Hai-yun Jin Zhong-qi Shi Guan-jun Qiao Zhi-hao Jin 

作者机构：State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University School of Materials Science and Engineering Jiangsu University 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2015年第22卷第5期

页      面：530-536页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0806[工学-冶金工程] 08[工学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (No. 51272208) the Program for New Century Excellent Talents in University (NCET–12–0454) the Program for Young Excellent Talents in Shaanxi Province, China (2013KJXX–50) 

主　　题：composite materials SiAION ceramics iron molybdenum alloys reaction bonding mechanical properties molten aluminum 

摘      要：An FeMo-alloy-doped β-SiA1ON （FeMo/β-SiA1ON） composite was fabricated via a reaction-bonding method using raw materials of Si, Al2O3, A1N, FeMo, and Sm2O3. The effects of FeMo on the microstructure and mechanical properties of the composite were investi- gated. Some properties of the composite, including its bending strength at 700℃ and after oxidization at 700℃ for 24 h in air, thermal shock resistance and corrosion resistance to molten aluminum, were also evaluated. The results show that the density, toughness, bending strength, and thermal shock resistance of the composite are obviously improved with the addition of an FeMo alloy. In addition, other properties of the composite such as its high-temperature strength and oxidized strength are also improved by the addition of FeMo alloy, and its corrosion re- sistance to molten aluminum is maintained. These findings indicate that the developed FeMo/β-SiA1ON composite exhibits strong potential for application to molten aluminum environments.