メカニカルアロイングによる非晶質Al_<75>Cu_<15>V_<10>合金の作製とその構造変化

概要

論文の詳細を見る
Al75Cu15V10 powder mixture was mechanically alloyed in a conventional planetary ball mill under an Ar atmosphere. The alloying process and the structure change induced by additional heating were investigated using X-ray diffractometry and differential scanning calorimetry. An amorphous alloy was obtained directly in the powder milled for 15 to 30h. The amorphous alloy obtained after 20h of mechanical alloying showed that by subsequent heating the amorphous to Mackay type icosahedral phase transition occurred in the region between 720 and 740K. The interatomic distances and coordination numbers of nearest neighbors in the amorphous and the Mackay type icosahedral alloys were determined from the principal peak of the radial distribution functions. It was found that atomic structures of these alloys were very similar to those of the same composition prepared by liquid quenching.
社団法人粉体粉末冶金協会の論文
1995-08-15