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US 10,865,119 B2Granted
Preparation of a metastable tetragonal zirconia aerogel
AssigneeAproxi Aps
InventorsKjeld Schaumburg, Henrik Tofte Jespersen, Per Bækgaard
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Abstract
The present application discloses a process for the preparation of metastable tetragonal zirconia in the form of an aerogel material, said material being capable of undergoing martensitic phase transformation to monoclinic zirconia. The application also discloses composite materials, such as dental filling materials, having included therein an aerogel material.
Claims4
A metastable tetragonal zirconia aerogel material having a density of 1.0-4.5 g/cm3 and in particulate form having a particle size distribution wherein D10 value is from 30 μm to 100 μm.
Dependencies are inferred from the claim text.