Reduced strain refractory ceramic composite and method of making

摘要

A composition is disclosed comprising a fine zircon component having a median particle size of less than 5 mum, a medium zircon component having a median particle size of from 5 mum to 15 mum, and a sintering aid, wherein the composition, after firing, has a strain rate of less than about 1x10^-6/hr. A method for making a green body comprising contacting a fine zircon component having a median particle size of less than 5 mum, a medium zircon component having a median particle size of from 5 mum to 15 mum, and a sintering aid, and then forming the mixture into a desired shape is disclosed.