Phase Transitions in Intermetallic Compounds under Pressure: Synthesis of Tungsten Germanides

  • S. V. Popova
  • L. N. Fomitcheva


As is known, tungsten germanides do not exist at ordinary conditions, and the equilibrium phase diagram of W — Ge probably has a simple eutectic form. In the ternary Compounds (Mo,W)3Ge, (Mo,W)5Ge3 and (Mo,W)2Ge the solubility of tungsten is 10 to 20 at.%; in W5(Si,Ge)3 and in W(Si,Ge)2 the solubility of germanium is 5 to 15 at.% [1,2]. Thus, tungsten germanides are not stable at atmospheric pressure. One can assume that high pressures may be favorable for the formation of these types of Compounds because their synthesis is accompanied by large decreases in specific volume.


Ternary Compound Equilibrium Phase Diagram Density Evaluation Powdered Tungsten High Pressure Chamber 
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Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • S. V. Popova
    • 1
  • L. N. Fomitcheva
    • 1
  1. 1.Institute of High Pressure PhysicsMoscowUSSR

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