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      The chemistry and metallurgy of beryllium

      Raymond, Onyekachi; Perera, Lakshika C.; Brothers,, Penelope J.; Henderson, William; Plieger, Paul G.
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      Raymond, O., Perera, L. C., Brothers,, P. J., Henderson, W., & Plieger, P. G. (2015). The chemistry and metallurgy of beryllium. Chemistry in New Zealand, 79(3), 137–143.
      Permanent Research Commons link: https://hdl.handle.net/10289/9882
      Abstract
      Beryllium (Be), the first of the group 2 alkali-earth ele­ments, is a silver-gray metal possessing an unmatched combination of physical and mechanical properties, which are vital for a variety of applications that offer tre­mendous benefits to society. It is the lightest workable metal, only two-thirds the weight of aluminium, yet it has six times the stiffness of steel, making it an ideal mate­rial for stiffness-dependent and weight-limited applica­tions. The chart in Fig. 1 illustrates how much beryllium outclasses other engineering materials with respect to thermal conductivity and dimensional stability (ability of a material to retain its uniformity under stress measured as the Young's modulus to density ratio). These unique properties of beryllium translate into performance en­hancement in the end product, for instance the James Webb Space Telescope (JWST: see Fig. 2). The next gen­eration James Webb Space Telescope, scheduled to be launched in 2018 as NASA's replacement for the Hubble telescope, will utilise a 6.5 meter wide beryllium mirror to reveal images of distant galaxies 200 times beyond what has ever been sighted.
      Date
      2015-07
      Type
      Journal Article
      Publisher
      NZIC
      Rights
      This article has been published in the journal: Chemistry New Zealand. Used with permission.
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      • Science and Engineering Papers [3143]
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