Stabilised aluminium zirconium mixed oxide powder

Details Stabilised aluminium zirconium mixed oxide powder Stabilised aluminium zirconium mixed oxide powder

2006-07-14

2010-06-08

Kopec, Mark (Department: 1796)

Compositions

Electrically conductive or emissive compositions

Metal compound containing

C252S520500, C423S266000

Reexamination Certificate

active

07731869

ABSTRACT:
Mixed oxide powder consisting of particles with the components zirconium dioxide, aluminium oxide and at least a third component selected from the group including yttrium oxide, magnesium oxide or calcium oxide, wherein mixed oxide powder has an aluminium oxide content 0.01 to 10 wt. % and is homogeneously distributed in the mixed oxide particles, the content of aluminium oxide, zirconium dioxide and yttrium oxide is at least 99.5 wt. %, based on the total quantity of the powder, and the BET surface area is 20 to 80 m2/g. It is obtained by atomising a solution containing at least one starting compound for each of aluminium oxide, zirconium dioxide and the third component, allowing the atomised solution to react with oxygen in a reaction chamber at a reaction temperature 700 to 15000° C., cooling the hot gases and the solid products and then separating the solid product from the gases. It can be used as a dental material.

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