Determination of Sintering Temperature of Nanocomposite WC-Co

Autor: Gang Qin Shao, Wei Feng Zhang, Peng Shun, Xiao Liang Shi, Zhong Lai Yi, Xing Long Duan, Xiao-Hua Yu, Chong Wang
Rok vydání: 2007
Předmět:
Zdroj: Key Engineering Materials. :1485-1488
ISSN: 1662-9795
DOI: 10.4028/www.scientific.net/kem.280-283.1485
Popis: The need for WC-Co with improved properties, particularly increased hardness and strength combined with increased ductility and toughness, has focused attention on the development of grades with finer and finer-grained powders and cemented carbides. The aim of this study is to determine the sintering temperature of nanocomposite WC-6Co (wt.%) sample by using an optical microscope under high temperature and a DSC / TG apparatus. The WC-Co sample was prepared from nanocomposite powder by hot-press-sintering at the determined sintering temperature. The phase structure of the powder and sintered samples was investigated. The SEM imaging was performed on fracture surfaces of sintered samples. The density and the HRA of sintered samples were also measured.
Databáze: OpenAIRE