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Results 1101 - 1110 of 1153 for Ceramic processing
  • Article - 11 Oct 2001
    There are several surface coating technologies available for tool steels. These surface coatings are used in applications such as drills, taps, reamers, shank cutters, bore cutters, dies, and milling...
  • Article - 11 Oct 2001
    Superconductivity is defined and the conditions necessary for materials to become superconducting are outlined. The differences between high temperature and low temperature superconductors are also...
  • Article - 9 Oct 2001
    There are several different types of zirconia such as partially stabilised versions and tetragonal zirconia polycrystals.
  • Article - 28 Jul 2001
    Although lead occurs as such in nature, it is rare. Lead is chiefly obtained from galena (PbS) through the process of roasting.
  • Article - 23 Jul 2001
    Uranium is a heavy, silver-white metal resembling nickel. It is malleable, ductile, slightly paramagnetic and pyrophoric when finely divided. Its main uses are as a nuclear fuel, radioactive isotope...
  • Article - 29 May 2001
    Invar has the lowest thermal expansion of any known metal or alloy from room temperature up to 230?C. Special low expansion and sealing alloy grades are available. Applications include thermostats,...
  • Article - 3 Apr 2001
    Although beryllia is a toxic ceramic in powder form, it has a number of properties that make it useful in industries ranging from electronics, to nuclear applications through to military and...
  • Article - 3 Apr 2001
    Diamond is the hardest material known to man. It also has other properties that make it a useful engineering material such as a low co-efficient of friction and high thermal conductivity. As such it...
  • Article - 21 Feb 2001
    The high pressure turbine is a specialty item. Materials such as superalloys, intermetallics and ceramic matrix composites are considered, as is the use of thermal barrier coatings.
  • Article - 12 Feb 2001
    Boron nitride comes in two forms, hexagonal and cubic boron nitrides. Both are syntheised in different ways. Hexagonal boron nitride is similar in many ways to graphite, while cubic boron nitride...