Process for preparaing polyhedral .alpha.-alumina particles

Details Process for preparaing polyhedral .alpha.-alumina particles Process for preparaing polyhedral .alpha.-alumina particles

1993-07-01

1996-06-04

Bos, Steven

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423111, 264332, C01F 702

Patent

active

055230741

ABSTRACT:
Polyhedral .alpha.-alumina particles having a particle size on the order of a micrometer and high purity are prepared by maintaining a compression molded aluminum material having, on its surface, a binary compound of aluminum and oxygen atoms or a ternary compound of aluminum, oxygen and hydrogen atoms in an aluminum melt.

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Study Group Report No. 29, Sep. 1995 (Japan Institute of Light Metals, Study Committee) , "Formation Behaviors of Inclusions and Examples of Defects in Aluminum", pp. 35-36 (partial translation).
"Phenomena in Molten Aluminium Induced . . . "; Masato Tsujikawa, et al. 1992, pp. 526-530, no month.

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