Lead coated alumina fiber and lead matrix composites thereof
AssigneeE. I. Du Pont de Nemours and Company
InventorHans S. Hartmann
Life of this patent
Estimating the term…
Abstract
Lead-coated alumina fibers which are obtained by reduction of lead oxide in a glass coating on alumina fibers are particularly useful for making strong lead matrix composites.
Claims5
A process for preparing lead-coated alumina fibers useful for reinforcement in lead matrix composites, comprising applying to the alumina fibers a solution or dispersion of glass containing at least about 74% lead oxide or an equivalent amount of a precursor thereof, heating the coated fiber to form an adherent glass film on the fiber and submitting the coated fiber to a reducing atmosphere at a temperature of from 600.degree. C. to 900.degree. C. to reduce the lead oxide to metallic lead.
Dependencies are inferred from the claim text.