Preparation of multi-walled carbon nanotube-reinforced TiNi matrix composites from elemental powders by spark plasma sintering

作     者：CAI Wei,FENG Xue,and SUI Jiehe National Key Laboratory Precision Hot Processing of Metals,School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China 

作者机构：National Key Laboratory Precision Hot Processing of Metals School of Materials Science and Engineering Harbin Institute of Technology Harbin China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2012年第31卷第1期

页      面：48-50页

核心收录：

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

基　　金：financially supported by Natural Science Foundation of China (No.51071059 and No.50971052) the Fundamental Research Funds for the Central Universities (No.HIT.KLOF.2010005) 

主　　题：metallic composites shape memory materials carbon nanotubes spark plasma sintering 

摘      要：Carbon nanotube (CNT)-reinforced TiNi matrix composites were synthesized by spark plasma sintering (SPS) employing elemental *** phase structure,morphology and transformation behaviors were *** was found that thermoelastic martensitic transformation be-haviors could be observed from the samples sintered above 800 ℃ even with a short sintering time (5min),and the transformation tempera-tures gradually increased with increasing sintering temperature because of more Ti-rich TiNi phase *** decreasing the sin-tering temperature and time to 700 ℃ and 5min could not protect defective MWCNTs from reacting with Ti,still-perfect MWCNTs re-mained in the specimens sintered at 900 ℃.This method is expected to supply a basis for preparing CNT-reinforced TiNi composites.