TiC-Ni-Mo复合材料的燃烧合成研究

无机材料学报, 1999, 14(3): 443-448.

TiC-Ni-Mo复合材料的燃烧合成研究

汪建利 , 张幸红 , 韩杰才 , 赫晓东 , 杜善义

安徽 241000

哈尔滨 150001

Anhui Institute of Mechanics and Electronics Wuhu 241000 China

+Center for Composite Materals

Harbin Institute of Technology Harbin 150001 China>

关键词：自蔓延高温燃烧合成 , null , null , null

Research on TiC-Ni-Mo Composites by Combustion Synthesis

WANG Jian-Li , ZHANG Xing-Hong , HAN Jie-Cai , He Xiao-Dong , DU Shan-Yi

Keywords： SHS, pseudo heat isostatic pressing, TiC-Ni cermets, processing parameters , 准热等静压 , 金属陶瓷 , 工艺参数

通过自蔓延高温燃烧合成结合准热等静压（SHS／PHIP）方法得到TiC－Ni－Mo复合材料TH20和TH30.研究了工艺过程参数对材料致密性的影响．得到了最佳的工艺规范．SHS反应产物主要存在两相：TiC相和Ni的固溶体相，球形的TiC颗粒相被包围在近乎网状结构的Ni合金粘结相当中．TiC颗粒与粘结相界面结合良好，反应产物中有少量游离碳的存在，TH20和TH30的抗弯强度同传统方法生产的相近成分的材料相比比较接近．

Dense TiC-Ni cermets TH20 and TH30 were produced by self-propagating high-temperature synthesis and pseudo heat isostatic pressing. The influence of process parameters
on densities was investigated. Cermet mainly consisted of TiC particles and Ni-binder. TiC skeletal structure was enveloped by continuous Ni-binder phase. The interfacial bonding
between TiC and Ni was found to be of a good quality. High dislocation existed near the interface and inside the Ni-binder phase, some residual carbon exists in
reaction product. Meanwhile transverse rupture strengths of TH20 and TH30 were both close to those produced by conventional technology.

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