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J. Korean Ceram. Soc. > Volume 35(7); 1998 > Article
Journal of the Korean Ceramic Society 1998;35(7): 749.
SHS공정에 의한 TiC-Ni-Mo 분말 합성 및 소결체 제조
송인혁, 전재호, 한유동
한국기계연구원 재료공정연구부
A Study on Self-Propagating High-Temperature Synthesis of TiC-Ni-Mo Based Cermet
ABSTRACT
TiC-Ni and TiC-Ni-Mo cermet powders were produced by Self-propagating High temperature Synthesis (SHS) process. The cooling rate of synthesized powders were controlled by using the V-shaped copper jig and the carbide size decreased with increasing the cooling rate I. e decreasing the width of copper jig Round shape carbide particles were produced after SHS reaction in TiC-Ni as well as TiC-Ni-Mo powders. Local segregation of Mo rich phases was observed in SHS powder of TiC-Ni-Mo and the uneven dis-triobution of Mo promoted the faster growth rate of carbide particles during sintering compared to the same composition specimen with commercial TiC powder. Howogeneous microstructure of TiC-Ni-Mo cermet was obtained when the elemental Mo powder was mixed with the SHS powder of TiC-Ni.
Key words: Self-propagating high temperature synthesis, Cermet, TiC-Ni, TiC-Ni-Mo
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