Research/Patents/US 5874015
US 5874015

METHOD FOR MAKING A RHENIUM ROCKET NOZZLE

Assignee

ALLIED SIGNAL, INC.

Filed

Jun 6, 1996

Granted

Feb 23, 1999

Location

MESA AZ US

Abstract

A method for making an article from rhenium and in particular a rocket nozzle. First a molybdenum mandrel is formed with a portion having the desired shape of the nozzle. A layer of rhenium is deposited over the nozzle portion, and then rhenium wire is wrapped around this rhenium layer. A second rhenium layer or a layer of ruthenium is then deposited over the layer of rhenium wire. Alternating layers of rhenium wire and deposited rhenium or ruthenium are applied until a desired thickness is obtained. A layer of molybdenum is applied to can the assembly and the assembly is subject to hot isostatic pressing. Finally, the molybdenum is etched away leaving the rhenium nozzle.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 31, 1998

Rescinded

Apr 27, 2001

Duration

3 years

Inventor

  • 1DONALD L. MITTENDORF

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records