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Books in Refractory metals

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The Chemistry of Non-Sag Tungsten

  • 1st Edition
  • October 22, 2013
  • L. Bartha + 3 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 8 7 9 6 - 6
Non-sag (NS) tungsten is a dispersion-strengthened microalloy with elemental potassium, which is contained as microscopic bubbles in the tungsten lattice. Under working conditions in an incandescent lamp the potassium is a gas under high pressure. These gas bubbles essentially prevent the recrystallization of the tungsten wire and are responsible for the outstanding creep resistance of NS tungsten at the extremely high temperatures of a glowing lamp filament. More than 90% of NS tungsten is used for incandescent lamps. In addition, small amounts are used as defroster heating wires in automobile windshields and as heating wire coils for aluminium evaporation in metallization applications.The presented papers deal with the chemical reactions and the chemical compounds occurring along the path from tungsten raw materials to the final NS tungsten filament; a compendium of present knowledge on the different chemical aspects of NS tungsten manufacture is presented. It is composed of nine individual papers, each of them written by experts working in the field.

Handbook of Refractory Carbides and Nitrides

  • 1st Edition
  • December 31, 1996
  • Hugh O. Pierson
  • English
  • eBook
    9 7 8 - 0 - 8 1 5 5 - 1 7 7 0 - 2
Refractory carbides and nitrides are useful materials with numerous industrial applications and a promising future, in addition to being materials of great interest to the scientific community. Although most of their applications are recent, the refractory carbides and nitrides have been known for over one hundred years. The industrial importance of the refractory carbides and nitrides is growing rapidly, not only in the traditional and well-established applications based on the strength and refractory nature of these materials such as cutting tools and abrasives, but also in new and promising fields such as electronics and optoelectronics.

Handbook of Industrial Refractories Technology

  • 1st Edition
  • December 31, 1992
  • Stephen Caniglia + 1 more
  • English
  • eBook
    9 7 8 - 0 - 8 1 5 5 - 1 7 5 6 - 6
Encompasses the entire range of industrial refractory materials and forms: properties and their measurement, applications, manufacturing, installation and maintenance techniques, quality assurance, and statistical process control.