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  • Tungsten Applications - Electrical Applications
    Article - 16 Feb 2002
    The only material that is practically used for electron emitters is tungsten. Although there are other electropositive metals that yield higher emission rates, tungsten has an extremely low vapor...
  • An Introduction to Erbium
    Article - 18 Dec 2001
    Part of the lanthanide series, erbium (Er) is a rare-earth element found in a wide range of minerals like blomstrandine, polycrase, fergusonite, euxenite, xenotime, and gadolinite.
  • Accelerated Ageing and Characterisation of UHMWPE used in Orthopaedic Implants
    Article - 21 Sep 2001
    Ultra High Molecular Weight Polyethylene has been used extensively as a wear face in orthopaedic implants. The performance of the material has been related to sterilisation techniques. Methods of...
  • Metal Injection Moulding
    Article - 23 Aug 2001
    Metal injection moulding (MIM) is a relatively new manufacturing process for the large-scale net shape forming of high integrity, multifunctional metal parts. Applications include automotive parts,...
  • Bicomponent Extrusion
    Article - 31 Jul 2001
    Bicomponent extrusion is a novel process for producing ceramic fibres with distinct core and sheath phases. These materials have potential use in metal and ceramic matrix composites and have the...
  • Diamond-Like Carbon Coatings
    Article - 31 Jul 2001
    Diamond-like coatings are carbon films with high hardness, high resistivity and dielectric and optical properties. Deposition by plasma CVD, ion beam and closed field unbalanced magnetron sputter ion...
  • Invar - Nickel Iron Alloy
    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,...
  • Auxetic Materials - Applications
    Article - 9 Mar 2001
    This novel family of materials is quite new and hence applications are relatively limited. This article describes a number of potential applications for auxetic materials including biomedical,...
  • Powder Metallurgy - Component Manufacture by Uniaxial Pressing
    Article - 7 Mar 2001
    Component production using powder metallurgy is described. Processes involved are compaction (unixial pressing), sintering, sizing and finishing operations such as machining, heat treatment and...
  • Positive Temperature Co-Efficient of Resistivity (PTCR) Materials - An Overview
    Article - 14 Feb 2001
    There are materials that exhibit a rapid rise in resistivity when heated above the Curie Temperature. Generally ceramics with a titanate structure, they are used in temperature control applications.

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