Dispersion of ultrafine SiC particles in molten Al-12Si alloy

作     者：Jin-Ju PARK Sang-Hoon LEE Min-Ku LEE Chang-Kyu RHEE 

作者机构：Nuclear Materials Research Division Korea Atomic Energy Research Institute Daejeon 305-353 Korea 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2011年第21卷第A1期

页      面：33-36页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：supported by the Korea Atomic Energy Research Institute (KAERI) R&D Program 

主　　题：超细陶瓷粉体 SiC颗粒 分散液 自蔓延高温合成 合金 共晶复合材料 粉末制备 碳化硅 

摘      要：The bulk Al-12 Si eutectic composites were fabricated through a conventional liquid metal casting route, especially with the help of ultrafine ceramic powders made by self-propagating high-temperature synthesis (SHS) process. The SHS powders were fabricated by the chemical reaction between micro-sized SiC and Al particles at very high combustion temperatures, producing the coarse Al particles (several tens of microns) containing ultrafine SiC ceramic particles. Microstructural observation revealed that the addition of ultrafine SiC particles has a crumbling tendency of Si eutectic phase. It is suggested that the casting method combined with SHS process is promising for fabricating the Al-based MMC with ultrafine ceramic particles.