Patent ID: 9714686
Date: 2017-07-25
CPC Classifications: B22D,C04B,C22C,F16D

Claim:
1. A method of making a ceramic preform, comprising the steps of: providing a mass of entangled alkaline earth aluminosilicate reinforcing fibers; detangling the mass of entangled alkaline earth aluminosilicate reinforcing fibers to separate the reinforcing fibers into individual strands to form detangled reinforcing fibers; preparing a ceramic compound by mixing with a mixer that is not an extruder, the ceramic compound comprising the detangled alkaline earth aluminosilicate reinforcing fibers, ceramic particles, a fugitive porosity generating component, starch, low temperature organic binder, colloidal silica, and water; and forming the ceramic compound into a desired shape to create the ceramic perform; wherein the mass of entangled alkaline earth aluminosilicate reinforcing fibers is detangled prior to preparing the ceramic compound by mixing.