The Perkin-elmer Corporation

Sulzer Metco Inc.

Novinski, Edward R.

Edward R Novinski

Mitchell R Dorfman

Anthony J Rotolico

Burton A Kushner

Mitch R Dorfman

Brian A DelRe

Brian A Delre

Two constituent powders of a powder blend for thermal spraying are in the form of composite particles containing subparticles of nickel alloy and benoite for clearance control coatings. The composite particles are formed by spray drying. In one embodiment the volume percentage of metal in one constituent powder is at least 25% greater than in the other powder. In another embodiment the difference is about 10% by volume, and the alloy rich constituent has alloy subparticles sufficiently large to act as core particles to which the finer subparticles of bentonite are bonded.

Composite thermal spray powder of metal and non-metal

A thermal spray powder comprising particles with a central core of a material selected from the group consisting of zirconium oxide, magnesium oxide, hafnium oxide, cerium oxide, yttrium oxide and combinations thereof. The core then has discrete aluminum particles and silicon dioxide homogeneously disposed in a binder deposited thereon to form the thermal spray powder which may be thermal sprayed to produce an abradable and erosion resistant coating.

Aluminum and silica clad refractory oxide thermal spray powder

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E. Williston, NY, United States of America

Edward R Novinski