Intermetallic al3ti powder and its production

Abstract

Abstract PURPOSE:To obtain intermetallic compd. Al3Ti powder for sintering which has small crystal grains and contains less deposited and segretated materials by compounding specific ratios of Al and Ti, heating and melting the compd. in an inert atmosphere, ejecting the melt to a cooling body to quickly solidify the melt, then grinding the solidified compd. CONSTITUTION:After 62-63wt% Al and the balance Ti are charged into a crucible 1, the inside of a vessel 3 is evacuated to a vacuum and an inert gas is introduced therein from an introducing mechanism 7. The raw materials in the crucible 1 are melted and alloyed by a heating mechanism 5. The molten alloy is ejected from a nozzle 4 onto the cooling body 2 such as rotating roll and is quickly solidified to a flake state at a cooling rate of >=10<4> deg.C/sec. The flaky solidified material is processed with a ball mill, etc., by which the material is pulverized. The intermetallic compd. Al3Ti powder which has uniform quality and is suitable for powder metallurgy is mass-produced.

Inventors

• 👤 Toshihiro Hanamura
• 👤 年裕 花村
• 👤 Tetsuya Sukai
• 👤 須貝　哲也

Bibliographic Details