CHEMICAL STRENGTHENING OF CERAMIC MATERIALS.
Abstract
An investigation of the effect of compressive surface layers on the strength of polycrystalline ceramic bodies is described. The thermal expansion properties of several additional oxide solid solutions were measured. Methods for forming low-expansion solid solution surface layers on alumina and titania ceramic bodies were investigated. Tin oxide solid solutions were formed on the surface of titania by coating the surface with SnCl4.5 H2O, bis(tri-n-butyl tin) oxide, or tributyl tin methacrylate and subsequent firing. The strengths on one small lot of coated samples and controls were measured in flexure during preliminary experiments. The coated samples were stronger than the controls. Preliminary estimates are presented of the stresses to be expected in compressive surface layers. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 07, 1964
- Accession Number
- AD0452185
Entities
People
- Henyr G. Kirchner
- Robert M. Gruver