HIPによる傾斜機能材料開発研究の動向

抄録

HIP is a powerful tool to produce functionally graded materials (FGMs) due to the heat treatment under isostatic gas pressure. PSZ/stainless steel, TiAI (α/α+γ), and W/Cu FGMs can combine incompatible functions of heat resistance and toughness in structural uses. In functional uses, the graded C/C composite for the heat receiver, the Ir/W/Ta emitter electrode for the thermionic converter, and one step formation of a graded thermoelectric conversion unit of SiGe with electrodes are developed using HIP. These recent developments of FGMs by HIP are reviewed.