Corning Incorporated
Batch compositions comprising spheroidal pre-reacted inorganic particles and spheroidal pore-formers and methods of manufacture of honeycomb bodies therefrom

Abstract:

A batch composition containing pre-reacted inorganic spheroidal particles and pore-former spheroidal particles. The pre-reacted inorganic spheroidal particles have a particle size distribution wherein 10 .mu.m.ltoreq.DI.sub.50.ltoreq.50 .mu.m, and DIb.ltoreq.2.0, and the pore-former spheroidal particles have a particle size distribution wherein 0.40 DI.sub.50.ltoreq.DP.sub.50.ltoreq.0.90 DI.sub.50, and DPb.ltoreq.1.32, wherein DI.sub.50 is a median particle diameter of the distribution of pre-reacted inorganic spheroidal particles, DP.sub.50 is a median particle diameter of the pore-former particle size distribution, DIb is a breadth factor of the pre-reacted particle size distribution of the pre-reacted inorganic spheroidal particles, and DPb is a breadth factor of the pore-former particle size distribution. Also, green honeycomb bodies manufactured from the batch compositions, and methods of manufacturing a honeycomb body using the batch compositions, are provided.