Accession Number:

AD0258654

Title:

DEVELOPMENT OF ARC SPRAYING PROCESSES AND MATERIALS FOR SOLID ROCKET NOZZLES

Descriptive Note:

Corporate Author:

GENERAL ELECTRIC CO CINCINNATI OHIO

Personal Author(s):

Report Date:

1961-03-01

Pagination or Media Count:

1.0

Abstract:

Equipment for arc metallizing W was operated with an Ar-stabilized arc and W wire as a consumable electrode for spraying W onto a removable mandrel. A larger, more efficient arc gun was developed and in addition, a commercial plasma jet spray gun was obtained and evaluated. The powder plasma-jet-sprayed W performed better than wire sprayed W, but neither spray process gave satisfactory results in rocket firings. A number of avenues of investigation were pursued in an attempt to upgrade the material and produce lighter weight structures. The state of development of arc or plasma sprayed W provides a product which is resistant to the erosive effects of high temperature aluminized solid propellents at moderate pressures, and which is functionally competitive with pressed and sintered W powders. For use at high chamber pressures, sprayed W is inadequate. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE