INVESTIGATION OF SINGLE-CRYSTAL AND POLYCRYSTALLINE TITANIUM DIBORIDE: METALLOGRAPHIC PROCEDURES AND FINDINGS

Abstract

Single-crystal and polycrystalline TiB2 was examined to develop applicable metallographic techniques for sectioning, mounting, grinding, polishing, and etching of TiB2 specimens. This work demonstrates the usability and practicability of using various SiC papers together with different grades of diamond paste on polishing wheels in preference to using cloths. It has been found that H2SO4, as a constituent of etchants, produces more reliable and more consistent results than HF. The same is true of H2SO4 when used as a constitutent of electrolytes. Single-crystal TiB2 was found to have a type of Widmanstatten structure while polycrystalline TiB2 had a needle-like pattern. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1961
Accession Number
AD0271965

Entities

People

  • C.t. Lynch
  • F.w. Vahldiek

Tags

DTIC Thesaurus Topics

  • Crystal Structure
  • Crystals
  • Electrolytes
  • Polishing
  • Polycrystals
  • Single Crystals
  • Titanium

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Surface Engineering/Surface Coating Technology.
  • Systems Analysis and Design