TiC/Ni/TiC材料的SHS合成研究

TiC/Ni/TiC Multilayer Composite Material by SHS

通过ＳＨＳ结合准等静压法（ＰＨＩＰ）得到了ＴｉＣ／Ｎｉ／ＴｉＣ材料，在ＳＨＳ过程中，Ｎｉ沿试样厚度方向向两层ＴｉＣ中对称渗流，在每层ＴｉＣ当中，Ｎｉ呈梯度分布，材料的硬度（ＨＲＡ）从中心向两边呈对称分布。理论上分析了Ｎｉ在两层ＴｉＣ中呈梯度分布所需的渗流动力。

TiC/Ni/TiC multilayer composite material was produced by selfpropagating hightemperature synthesis and pseudohot isostatic pressingNi infiltrates along the thickness of the sample from the centre to two TiC layersThe infiltration pressing was analysed when Ni distributed gradually in the TiC layer Hardness values (HRA)are also measured in the TiC/Ni/TiC multilayer composite