C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/27
C04B 35/486 (2006.01) C04B 35/488 (2006.01) C04B 35/622 (2006.01) C04B 35/624 (2006.01) C04B 35/636 (2006.01)
Patent
CA 2303036
A molding compound is used to form net-shape or near net-shape articles consisting essentially of about 50 to 100 wt.% ZrO2(Y2O3) and 0 to about 50 wt.% Al2O3. The compound, containing ceramic powders having an average particle size less than 1µm, is mixed with a liquid carrier, a gel forming binder and processing additives and can be molded at relatively low pressures in a conventional injection molding machine.
Cette invention se rapporte à un composé moulé, qui sert à constituer des articles de forme nette ou de forme quasi nette et comprenant essentiellement 50 à 100 % en poids environ de ZrO¿2?(Y¿2?O¿3?) et 0 à 50 % en poids environ de Al¿2?O¿3?. Ce composé, qui contient des poudres de céramique ayant une taille moyenne des particules inférieure à 1µm, est mélangé avec un véhicule liquide, un liant de gélification et des additifs de transformation et il peut être moulé à des pressions relativement basse, par une machine de moulage par injection classique.
Goldacker Jeffrey
Van Weeren Remco
Whalen Philip J.
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
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