Patent ID: 6054402
Filing Date: 2000-04-25
Classification: C04B,F02F,F05C

Abstract:
A component for an engine part, consisting of:a thermally insulating component, said thermally insulating component formed from a composition, consisting of a mixture of zirconium oxide in the range of from about 5% to about 25% by volume and mullite in the range of from about 75% to about 95% by volume, and said composition being free of any sintering aids;said mixture being a homogeneous dispersion of zirconium oxide in mullite, obtained by chemically mixing mullite and ZrO.sub.2 by a sol gel porcess;said thermally insulating component being formed by slip casting and pressureless sintering said mixture at a temperature less than about 1700.degree. C.; andsaid thermally insulating component having a Weibull Modulus of at least 11.25, a B50 Stress of at least about 406 Mpa, and a density of at least 99% of theoretical density.