Cyber Materials LLC

Donald Edward Wroblewski

Michael Alan Gevelber

James R Fincke

William David Swank

Delon C Haggard

Randy Lee Bewley

An improved automatic feedback control scheme enhances plasma spraying of powdered material through reduction of process variability and providing better ability to engineer coating structure. The present inventors discovered that controlling centroid position of the spatial distribution along with other output parameters, such as particle temperature, particle velocity, and molten mass flux rate, vastly increases control over the sprayed coating structure, including vertical and horizontal cracks, voids, and porosity. It also allows improved control over graded layers or compositionally varying layers of material, reduces variations, including variation in coating thickness, and allows increasing deposition rate. Various measurement and system control schemes are provided.

Growing community of inventors

Wellesley, MA, United States of America

Donald Edward Wroblewski