PHASE EQUILIBRIA INVESTIGATIONS OF BINARY, TERNARY, AND HIGHER ORDER SYSTEMS. PART 3. PHASE EQUILIBRIA STUDIES IN THE Nb-Ta-C SYSTEM

Abstract

The solid state and solid-liquid equilibria of the Nb-Ta-C system was determined by melting point determinations, X-ray and chemical analysis, metallography, and differential thermal analysis for temperatures above 1500C. The ternary system has a complete solid solution of monocarbides and also of subcarbides if the differences in carbon atom ordering is disregarded. Eutectic troughs in both the metal-rich and carbon-rich regions of the ternary are present. Calculated tie-line distributions agree well with experimental results.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1970
Accession Number
AD0709946

Entities

People

  • Erwin Rudy
  • Phillip H. Booker

Organizations

  • Aerojet Rocketdyne Holdings

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Chemistry
  • Crystal Structure
  • Differential Thermal Analysis
  • Heat Energy
  • High Temperature
  • Isotherms
  • Materials
  • Melting Point
  • Phase Diagrams
  • Phase Transformations
  • Solid Solutions
  • Tantalum
  • Thermal Analysis
  • Thermodynamics
  • Transition Temperature
  • X Rays

Readers

  • Materials Science and Engineering.