Sintering densification behavior of molybdenum tungsten alloys

Autor: WU Zhou, WANG Na, WU Ji-na, ZHU Qi, XI Sha, ZHANG Xiao, ZHANG Tie-jun, AN Geng, ZHOU Sha, ZHANG Jun-li
Jazyk: čínština
Rok vydání: 2021
Předmět:
Zdroj: Fenmo yejin jishu, Vol 39, Iss 3, Pp 234-238 (2021)
Druh dokumentu: article
ISSN: 1001-3784
DOI: 10.19591/j.cnki.cn11-1974/tf.2020050002
Popis: The shrinkage and densification behavior of Mo–30W alloys sintered by spark plasma sintering (SPS) and vacuum hot pressing sintering were studied by in-situ measurement method. The results show that, the Mo–30W alloys by SPS are mainly characterized by expansion below 1200 ℃, the shrinkage of the Mo–30W alloys begins strongly above 1200 ℃, and the shrinkage tends to stop above 1600 ℃; in the cooling stage, there is a strong shrinkage of the Mo–30W alloys, and the shrinkage basically stops when the temperature is close to room temperature. The relative density of Mo–30W alloys by SPS at 1600 ℃ is over 93%, which is better than that of 89.98% by vacuum hot pressing sintering at the same temperature.
Databáze: Directory of Open Access Journals