Method of producing a polycrystalline transparent spinel sintere

Details Method of producing a polycrystalline transparent spinel sintere Method of producing a polycrystalline transparent spinel sintere

1985-07-15

1986-04-22

Bell, Mark L.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

501120, 501153, 423600, C04B 3544

Patent

active

045841519

ABSTRACT:
The disclosed polycrystalline transparent sintered body contains Al.sub.2 O.sub.3 and MgO at a molar ratio of (0.54:0.46) to (0.58:0.42) and has in-line transmittance of more than 77% for 1 mm thickness at a light wavelength of 0.6 .mu.m, which sintered body is produced by preparing fine spinel powder through hydrolysis of an isopropanol solution of aluminum isopropoxide and magnesium isopropoxide, forming a shaped body from the powder, and sintering the shaped body.

REFERENCES:
patent: 3212401 (1965-10-01), Navias
patent: 4273587 (1981-06-01), Oda et al.
patent: 4495116 (1985-01-01), Kaneno

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