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  • Article - 31 Jul 2001
    Over the past decade, single-mode optical fiber has become firmly established as the preferred medium for terrestrial communications.
  • Article - 29 Jul 2001
    Black was the first person to recognize magnesium (Mg) as an element in 1755. Later, in 1808, Davy isolated this element by evaporating mercury from a magnesium amalgam.
  • Article - 29 Jul 2001
    Molybdenum is silvery-white, very hard refractory metal, however, it is softer and more ductile than tungsten and is readily worked or drawn into very fine wire. Primary uses are as an alloying...
  • Article - 23 Jul 2001
    Platinum (Pt) was discovered by Ulloa in 1735 and Wood in 1741. Platinum occurs as such naturally, together with negligible amounts of palladium, iridium, rhodium, osmium, and ruthenium.
  • Article - 20 Jul 2001
    Cobalt is a brittle, hard metal white in appearance resembling nickel but with a bluish tinge instead of the yellow of nickel. It imparts hardness to steels and alloys. Radioactive cobalt 60 has many...
  • Article - 20 Jul 2001
    Caesium is the most electropositive and most alkaline element. It is also highly reactive. It is used as an oxygen getter, a gamma-ray emmitter, in teletherapy, as a catalyst for hydrogenation,...
  • Article - 20 Jul 2001
    Beryllium is a high melting point metal with low density. It is commonly alloyed with copper, aluminium and nickel. Other applications include aerospace, gyroscopes, radiation detectors and other...
  • Article - 20 Jul 2001
    In 1817, German chemist Friedrich Strohmeyer discovered cadmium from an impurity of zinc carbonate (ZnCO3). Cadmium derives from the Latin term ‘cadmia’ and the Greek word ‘kadmeia’, which are ancient...
  • Article - 17 Jul 2001
    Americium isotope Am241 was identified by a group of researchers at the University of Chicago in 1944 and was the fourth trans-uranium element to be discovered. It is used as a neutron and gamma...
  • Article - 9 Jun 2001
    Thermal spraying is a generic name for a range of coating processes in which molten particles are accelerated toward a substrate using a variety of energy sources. The general process is defined and...

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