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Proceed reservation?

Due to technical work, the interlibrary loan service wont be available from March 28th until presumably April 3rd.
  • 1965-1969  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Powder metallurgy and metal ceramics 7 (1968), S. 695-698 
    ISSN: 1573-9066
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions Particle growth during the reduction of tungsten and molybdenum powders and the shrinkage kinetics of these powders depend on two processes taking place simultaneously, namely, partial melting and vaporization of surface layers of the dioxides of these metals. During high-temperature reduction (〉 1100°C), fine particles of tungsten and molybdenum dioxides are vaporized and redeposited on large particles; on the surface of the particles, a liquid phase may form, resulting in the generation of capillary forces which create a bond between separate particles. Melting of the oxides covering the surface of metallic tungsten and molybdenum particles promotes shrinkage during sintering, while conversely vaporization of the oxides inhibits the shrinkage of these metals.
    Type of Medium: Electronic Resource
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