Saint-gobain Abrasives Technology Company

Saint-gobain Ceramics & Plastics, Inc.

Charles Bateman

Richard W J Hall

Jens M Molter

Vimal K Pujari

William T Collins

Ara Vartabedian

David Woolley

The present invention relates generally to a multi-layered article suitable for service in severe environments. The article may be formed of a substrate, such as silicon carbide and/or silicon nitride. The substrate may have a first layer of a mixture of a rare earth silicate and Cordierite. The substrate may also have a second layer of a rare earth silicate or a mixture of a rare earth silicate and cordierite.

Environmental barrier coating

Abrasive tools contain abrasive grains oriented in an array according to a non-uniform pattern having an exclusionary zone around each abrasive grain, and the exclusionary zone has a minimum dimension that exceeds the maximum diameter of the desired grit size range for the abrasive grain. Methods for designing such a self-avoiding array of abrasive grain and for transferring such an array to an abrasive tool body are described.

Abrasive tools made with a self-avoiding abrasive grain array

Growing community of inventors

Rutland, MA, United States of America

Charles Bateman