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Results 331 - 340 of 1025 for Minerals
  • Article - 30 Oct 2003
    The history and dvelopment of the metals forging industry is described. From its origins, throught the 19th century to modern day. Key materials developments are also described.
  • Article - 10 Oct 2003
    Soapstone is a naturally occurring material that is suitable for use in countertops, cooking surfaces, fireplaces, wood stoves and ovens. Its composition and properties are briefly outlined.
  • Article - 25 Jul 2003
    Life cycle analysis takes into account the energy and materials resources required to make an article and the impacts of human activities on natural resources and the environment. Using these factors,...
  • Article - 15 Jul 2002
    Increased performance has resulted in reduced weight in cars. Consequently, polypropylene usage has increased and processes to improve wetting for painting. Air plasma pre-treatments are outlined, in...
  • Article - 1 Jul 2002
    This article contains helpful hints on hot working of titanium and titanium alloys. Processes specifically mentioned include press and hammer forging. Variables covered include thermal conductivity,...
  • Article - 3 Apr 2002
    Platinum (Pt), a very rare substance, is very less abundant than gold. It exists in very few commercially viable deposits on earth.
  • Article - 21 Jan 2002
    Scheele discovered “Tungsten” in 1781; however, it took 150 years more before the efforts of Scheele and his successors led to the use of tungsten carbide in the industry.
  • Article - 18 Dec 2001
    Marignac first isolated gadolinia, an oxide of gadolinium (Gd), in 1880. Then, in 1886, Lecoq de Boisbaudran successfully separated the element from Mosander’s “yttria.”
  • Article - 18 Dec 2001
    Francium is an alkali metal that occurs naturally as a radioactive decay product of actinium. While 29 isotopes have been identified, knowledge and properties are scarce, owing to its instability.
  • 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.

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