Back to results
US 6,143,272 AGranted
Sol-gel processed metal-zirconia materials
AssigneeFord Global Technologies, LLC
InventorsChaitanya Kumar Narula, Sabine Rita Nakouzi-Phillips
Life of this patent
Estimating the term…
Abstract
This invention is a metal-zirconium oxide material made by sol-gel techniques from alkoxides including heterometallic alkoxides. The heterometallic alkoxides include zirconium and another metal selected from alkali metals and alkaline earth metal. Optionally, in forming this material, heterometallic alkoxides of zirconium and lanthanide metal may be included during sol-gel processing, as well as mono-metal alkoxides of these metals or zirconium.
Claims10
A method of making a metal-zirconia material by sol-gel techniques which comprises:
- reacting (a) water and (b) alkoxides comprising (I) at least one heterometallic alkoxide selected from the group consisting of:
- (a) alkali metal-zirconium alkoxides having the general chemical formulas:
- M[Zr(OR).sub.5 ], M[Zr.sub.2 (OR).sub.9, or M.sub.2 [Zr.sub.3 (OR).sub.14 ], where M is an alkali metal;
- and
- (b) alkaline earth metal-zirconium alkoxides having the general chemical formulas:
- M'[Zr.sub.2 (OR).sub.9 ].sub.2 or M'[Zr.sub.3 (OR).sub.14, where M' is an alkaline earth metal;
- and
- (II) lanthanide-zirconium alkoxides selected from the group consisting of:
- Ln[Zr.sub.2 (OR).sub.9 ].sub.2, where Ln is a lanthanide.
6 more elements
Dependencies are inferred from the claim text.