摘要
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.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期443-448,共6页
Journal of Inorganic Materials
关键词
自蔓延高温燃烧
准热等静压
金属陶瓷
复合材料
SHS, pseudo heat isostatic pressing, TiC-Ni cermets, processing parameters
