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C-Co-W-Ti System: Calculations of Phase Equilibria and Molar Volumes.


PB97102370

Publication Date 1995
Personal Author Frisk, K.
Page Count 48
Abstract The phase diagram and thermodynamic properties of the C-Co-Ti-W system are of interest for cemented carbide applications. In the present work an assessment of experimental information concerning the Co-Ti-C system has been performed and a thermodynamic description of this system using thermodynamic models describing the Gibbs energy of the various phases is presented. Calculations are compared with experimental information. The new description of the Co-Ti-C system is combined with previously presented thermodynamic descriptions of binary and ternary systems, and parameters describing the quaternary system are presented. Experimental information on lattice parameters and molar volumes of the phases of main interest has been assessed and this information has been included in the thermodynamic description.
Keywords
  • Phase diagrams
  • Thermodynamic properties
  • Carbides
  • Calculations
  • Molar volumes
  • Graphs(Charts)
  • Foreign technology
  • Co-Ti-W-C
Source Agency
  • Foreign Technology-Studsvik Energiteknik AB
NTIS Subject Category
  • 99F - Physical & Theoretical Chemistry
Corporate Authors Swedish Inst. for Metals Research, Stockholm.; Swedish National Board for Industrial and Technical Development,
Supplemental Notes Figures in this document may not be legible in microfiche. Sponsored by Swedish National Board for Industrial and Technical Development, Stockholm.
Document Type Technical Report
NTIS Issue Number 199701
C-Co-W-Ti System: Calculations of Phase Equilibria and Molar Volumes.
C-Co-W-Ti System: Calculations of Phase Equilibria and Molar Volumes.
PB97102370

  • Phase diagrams
  • Thermodynamic properties
  • Carbides
  • Calculations
  • Molar volumes
  • Graphs(Charts)
  • Foreign technology
  • Co-Ti-W-C
  • Foreign Technology-Studsvik Energiteknik AB
  • 99F - Physical & Theoretical Chemistry
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