INVESTIGATION OF BONDING IN OXIDE-FIBER (WHISKER) REINFORCED METALS

Abstract

The work is part of a continuing study to determine the effects of various additives on the wetting and bonding of nickel and nickel alloys to single crystal sapphire (alpha-Al2O3). The effects of bonding interactions at the surface of flame-polished sapphire rods on the subsequent strength of the rods are being studied. Flame-polished rods with strength of 500000 to 800000 lb/sq in have been prepared and, with the exception of occasional large internal flows, the strength was related to surface smoothness. The majority of the time and effort expended in this period has been devoted to the development of the flame-polishing technique since the use of high-strength rods is critical to the performance of the experiments planned for this program. Preliminary heat treatments of rods sputtered with Ni-alloy coatings indicate that slight interactions can degrade the sapphire surface and significantly reduce the strength of the rods.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 18, 1967
Accession Number
AD0664167

Entities

People

  • M. J. Noone
  • Willard H. Sutton

Organizations

  • General Electric

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Alloys
  • Chemistry
  • Composite Material Fabrication
  • Composite Materials
  • Crystals
  • Elements
  • Fibers
  • Finishes
  • Heat Treatment
  • Materials
  • Metals
  • Military Research
  • Nickel Alloys
  • Single Crystals
  • Space Sciences
  • Temperature Gradients

Readers

  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials
  • Surface Coatings Technology.