Equilibrium Studies of Refractory Nitrides. Part 1. Details of the Apparatus and Studies of the Ti-N System

Abstract

This report describes an apparatus assembled specifically for studies on refractory nitrides. The apparatus provides for measurement of nitrogen pressure as a function of temperature and composition of the nitride sample by a static technique. The titanium nitride phase was studied. Equilibrium nitrogen pressures were determined for nitride compositions ranging from about Ti(.54)N(.46) to Ti(.5) N5. Equilibrium titanium pressures over pure titanium, the alpha-titanium- titanium nitride two phase mixture and a nitride composition of about Ti(.55)N(.45) were determined by a Knudsen technique. These pressure data are related and extended across titanium nitride phase region utilizing thermodynamic theory. Previous work on titanium nitride is reviewed and a consistent account of all the available data is developed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1965
Accession Number
AD0474087

Entities

People

  • Claude P. Coppel
  • Leslie A. Mcclaine

Organizations

  • Arthur D. Little

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Analysis
  • Contracts
  • Governments
  • Heat Energy
  • Materials
  • Materials Laboratories
  • Measurement
  • Melting Point
  • New York
  • Partial Pressure
  • Phase Diagrams
  • Pressure Measurement
  • Refractory Metals
  • Standards
  • Thermodynamics
  • United States
  • Vapor Pressure
  • Vaporization

Readers

  • Powder metallurgy of Titanium alloys.