single-crystal turbine blade

single-crystal turbine blade

A high-temperature strength blade with no grain boundaries. It is manufactured by an advanced casting process that produces the blade from the crystal of metal.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Barry Piearcey patented Pratt & Whitney's first single-crystal turbine blade, which was followed by a patent on an improvement by Bernard Kear.
As Sir John Rose points out, single-crystal turbine blades are valuable to the companies that make them, as a high-technology--and profitable--product.
But in the early 1960s, researchers at Pratt & Whitney Aircraft (now Pratt & Whitney, owned by United Technologies Corp.) set out to deal with the problem by eliminating grain boundaries from turbine airfoils altogether, by inventing techniques to cast single-crystal turbine blades and vanes.