Accession Number:

AD0294636

Title:

STUDIES OF THE REINFORCEMENT OF METALS WITH ULTRA HIGH STRENGTH FIBERS

Descriptive Note:

Corporate Author:

HORIZONS INC CLEVELAND OHIO

Personal Author(s):

Report Date:

1962-01-29

Pagination or Media Count:

12.0

Abstract:

A study of the reinforcement of high temperature metals in particular Nichrome alloys with ultr The extrusion-sintering composite preparation technique has been adopted as a standard approach in this work. The phenomenon of reinforcement apparently requires extremely precise control of the processes of diffusion in order to produce a chemical bond between the ceramic fiber and the metal matrix. Halides of vari 1- 1 - 8 5 B B C I U HE EMPHASIS HAS BEEN PLACED UPON THE DEVELOPMENT OF A BOND BETWEEN THE METAL MATRIX AND THE REINFORCING ALUMINA WHISKERS. The extrusion-sintering composite preparation technique has been adopted as a standard approach in this work. The phenomenon of reinforcement apparently requires extremely precise control of the processes of diffusion in order to produce a chemical bond between the ceramic fiber and the metal matrix. Halides of various metals either present in the o iginal metal alloy or deliberat ly added ar presently under study. Reinforcement of a Nichrome V lloy co sis ing of an increase of almost 50 in measured tensile s rength on a coldworke composite has be n achieved. Cold-worke ichrome, prepar d by the extrusion-sint ring process, usually exhibits a room temperature tensil strength of about 210,000 psi the composite speci en, reinforced over ll with only 2-1 BY EIGH OF ALUMINA I KERS, SHOWED ROOM TEMPERATURE ENSILE S RENGTH OF JUST OVER , PSI. uthorAD-2946 6 2 Reinforce en of high e pera ure Nichro e alloy with ultra high strength alumina fibers whiskers metal halides as active agents for production of chemical bonds.

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE


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