Compositions: ceramic – Ceramic compositions – Refractory
Patent
1986-01-24
1989-11-14
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Refractory
501102, 501103, 501105, 501127, 423115, 423600, C04B 3548, C01F 702
Patent
active
048807575
ABSTRACT:
A composite ceramic material having improved properties is disclosed as well as several methods for preparing the same. The composite powder is substantially comprised of zirconia and spinel phases, produced by precipitation and calcination of the precipitate of the oxide forming precursor salts. A preferred method for introducing the zirconium is as a soluble and/or decomposable salt during precipitation of the spinel forming hydroxyl or halo hydroxyl spinel forming salts. The zirconium salt decomposes to zirconia during calcining and/or sintering of the powder resulting from the precipitation. A preferred composite is that obtained from magnesium and aluminum salts, resulting in a MgAl.sub.2 O.sub.4 spinel and intimately admixed ZrO.sub.2 which contains a stabilizing agent.
REFERENCES:
patent: 2409844 (1946-10-01), Field
patent: 4221650 (1980-09-01), Friese et al.
patent: 4314827 (1982-02-01), Leitheiser et al.
patent: 4506024 (1985-03-01), Claussen et al.
patent: 4525464 (1985-06-01), Claussen et al.
patent: 4587225 (1986-05-01), Tsukuma et al.
patent: 4626518 (1986-12-01), Watanabe et al.
Henslee Walter W.
Witkowski Thomas S.
Baker G. R.
Dixon Jr. William R.
Green Anthony J.
The Dow Chemical Company
LandOfFree
Chemical preparation of zirconium-aluminum-magnesium oxide compo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chemical preparation of zirconium-aluminum-magnesium oxide compo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical preparation of zirconium-aluminum-magnesium oxide compo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1852792