Accession Number : AD0714416

Title :   Study of the Process of the Formation of Niobium Carbide on Graphite Particles,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Tsyba,P. G. ; Klevtsur,S. A. ; Gorbunov,N. S.

Report Date : 27 AUG 1970

Pagination or Media Count : 12

Abstract : The procedure and equipment were worked out for gas vapor phase deposition of refractory metal carbides and nitrides onto graphite particles in a fluid bed. Details were worked out specifically for the deposition of niobium carbide. Curves showing deposit thickness as function of process time and temperature indicate a diffusion process. X-ray structural analyses established that a uniform deposit of niobium carbide, of nearly stoichiometric composition, was formed about the entire particle surfaces. (Author)

Descriptors :   (*NIOBIUM COMPOUNDS, VAPOR PLATING), (*CARBIDES, *VAPOR PLATING), DEPOSITION, REFRACTORY COATINGS, SURFACE PROPERTIES, X RAY DIFFRACTION, FURNACES, USSR

Subject Categories : Ceramics, Refractories and Glass
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE