TiH粉末を添加したTi粉末射出成形体の焼結挙動

概要

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The debinding and sintering conditions of titanium compacts made by injection moldings and the effect of the addition of Till powder on the sintering characteristics of Ti powder have been studied. Specimens were made of Ti and Till powder with 30, u m in average diameter which were blended with binders and injected into a metal mold of flexure test piece. These were sintered in vacua of 1Pa after debinding. In the case of debinding at 423K, specimens had microstructures of titanium grains with pores, but bulged on the surface. In the case of debinding at 523K and 593K, TiC particles precipitated in grain boundaries. The higher the sintering temperature was, the greater the density of sintered Ti compacts became regardless of the debinding temperature. The densification of Ti powder compacts could be remarkably improved by the addition of TiH powder.
社団法人粉体粉末冶金協会の論文