メカニカルアロイングによるTiB_2-20mass%Fe_3Alサーメット合金の作製

概要

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TiB2-30mass%Fe3Al powder was prepared by mechanical alloying of TiB2 powder, Fe powder and Al powder as starting materials for a short time. After a mechanical alloying, the recovery rate of 90% or more of the start materials by weight was shown from 7.2ks to 72ks. All mechanically alloyed powders were composed of TiB2, Fe and Al. The obtained MA powders were consolidated using by a pulsed current sintering equipment. When the MA powder milling for 72ks was consolidated at 1373K under a pressure of 80MPa, it reached 96.4% of the theoretical density. Fe-Al intermetallic compound were synthesized during sintering of the MA powder by a self-propagating high temperature synthesis. This MA powder was consolidated by a pulsed current of 100Hz for 300s without cracks.
社団法人粉体粉末冶金協会の論文
2006-01-15