Process for producing sintered .alpha.-Al.sub.2 O.sub.3 bodies a

Details Process for producing sintered .alpha.-Al.sub.2 O.sub.3 bodies a Process for producing sintered .alpha.-Al.sub.2 O.sub.3 bodies a

1996-01-24

1997-09-09

Group, Karl

Abrasive tool making process, material, or composition

Miscellaneous

501127, 264653, 264662, C04B 35111

Patent

active

056651279

ABSTRACT:
Microcrystalline bodies based on .alpha.-Al.sub.2 O.sub.3 are made by drying sub-micron powders, press compacting and shock sintering at an intermediate sinter temperature range of 1,300.degree. to 1,550.degree. C., i.e. bringing the compact up to such range in under 60 seconds, preferably under 10.

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patent: 4623364 (1986-11-01), Cottringer et al.
patent: 5215551 (1993-06-01), Hatanaka et al.
patent: 5227104 (1993-07-01), Bauer
patent: 5261930 (1993-11-01), Fliedner et al.
patent: 5282875 (1994-02-01), Wood et al.
patent: 5516348 (1996-05-01), Conwell et al.

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