Beryllium: General Characteristics

Decent Essays
Beryllium
General Characteristics According to Hornbostel (1991), Beryllium is a hard, exceptionally, lightweight, gray-white metal, corrosion resistant at ordinary temperatures; chemically it is related to aluminum. Other than titanium, it is the only light metal which has both good strength and a high melting point. Additionally, it is a good electrical conductor, has high modulus of elasticity, exceptionally transmit x-rays and sounds at very high velocities. Moreover, it has the ability to act as a source, moderator and reflector of neutrons. It can be forged, rolled and extruded, machined, punched, sheared and casted by vacuum casting. Commercially, it is available in block, rod, sheet, pebble, metal disk, foil and powder form.
Beryllium
…show more content…
It can withstand fatigue and wear, and can be strengthened and hardened to an accurately controllable degree. It can be easily casted, corrosion resistant and reproduce fine detail. Moreover, it has high electrical conductivity at high temperatures. To introduce Beryllium into metals, Beryllium alloys of magnesium-aluminum, aluminum, nickel, copper, iron or cobalt are always used (Hornbostel, 1991). According to Harper (2001), Beryllium oxide, with a melting point of 2585 °C and specific gravity of 3.025, is a cubic close-packed and has a zinc blende structure. It is stable in dry atmospheres. At high temperature, it reacts with graphite. And for 1100 °C and above, it hydrolyzes. It is electrically resistant and is a good thermal …show more content…
It also used to eliminate the use of lead and cadmium and minimize the use of zinc and nickel. Also, it is used in immersion deposition for all surface replaceable ions to become tin. However, to attain good results, a good base metal preparation is needed. It is an environment-acceptable process and has a low cost. In electrodeposition, it is used as an alternative for tin-lead and cadmium coatings due to its good solderability and corrosion resistance. But, formation of thin whiskers can also be observed. It can also be used in hot dipping, autocatalytic deposition and spraying (Harper,

Related Documents

  • Decent Essays

    Analysis Of Magnet Wire

    • 1317 Words
    • 6 Pages

    Copper possesses a face-centred-cubic (FCC) crystal structure, with Atomic Packing Factor (APF) of 0.74. Copper is tough, ductile, and malleable material. Ductile is a solid’s ability to deform under tensile stress without breaking. It exhibits opposite characteristic to brittle. High ductility enables copper to be easily shaped into thin wire.…

    • 1317 Words
    • 6 Pages
    Decent Essays
  • Decent Essays

    The addition of tin also improves the corrosion resistance. Iron makes the brass harder and makes the internal grain structure smaller to make proper shape of brass. Arsenic and Antimony are sometimes added to brasses that contain more than 20% zinc to inhibit corrosion. Other materials like manganese, silicon and phosphorus in a very small amount. Manufacturing Process Manufacturing process of brass involved combining the appropriate raw materials into a molten metal, which is allowed to solidify.…

    • 633 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Veejay Plastic Case Study

    • 1034 Words
    • 5 Pages

    Some of the common applications of this polymer are bushings, gaskets, seals, and electronic parts. • Low Density Polyethylene (LDPE): This is one of the widely used and inexpensive thermoplastic with excellent lubricity. This plastic is soft, easy to fabricate, and is not recommended for applications above 150 oF. This polymer is lightweight, and possesses high chemical resistance, electrical insulation properties, and toughness. • Polypropylene: This is a semi-crystalline polymer, which can be structurally altered to meet process requirements across a wide range of temperatures.…

    • 1034 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Titanium Research Paper

    • 745 Words
    • 3 Pages

    Good results are generally obtained when laser welding is applied to titanium alloys. The high-energy-density welding processes to produce full-penetration, single-pass welds during laser welding, minimizes the difficulties associated with conventional welding methods, regarding to distortion and residual stress (Costaeal., 2007), where the physical properties of titanium make laser a good choice for welding its alloys, its low thermal conductivity prevents heat dissipation, and its low coefficient of thermal expansion, avoids the appearance of stresses during welding. Also the good absorption rate of titanium, for the laser beam, and its high melting point (Bertrand et al., 2007), indicate that, high energy must be used to weld these alloys, thus laser welding is an adequate technology to join these…

    • 745 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Magnesium Alloy Essay

    • 1122 Words
    • 5 Pages

    The melting point ranges from 1422K to 1722k. Cast iron has good fluidity, cast-ability, good machine-ability, excellent resistance to deformation. Cast Iron have become a good engineering material with applications in machines, automotive industry parts such as cylinder heads, cylinder blocks, and gearbox cases. It has resistance to destruction and weakening by oxidation…

    • 1122 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    A polymer is a large molecule which is formed by repeated linkage of small molecule called monomers. Conducting polymer have been the subjects for many decades as possible synthetic metals. Many of these polymer, especially those with a conjugated pi-bond system ,often yield higher conductivity once having undergone the doping process. Polymers are typically insulators due to their very high resistivity .Insulators have tightly bound electrons so that nearly no electron flow occurs ,and they offer high resistance to charge flow. Conductance free electrons are needed.…

    • 841 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    This distinction leads to a substantial effect on both the mechanical and chemical properties of geopolymer cement and it also provides a better resistant to heat, and other types of chemical attack. (Vam Dam, 2010) The formation of geopolymer is relatively simple. Chemically it is somewhat similar to the natural occurring zeolite materials (Davidovits, 1994). The process of creating geopolymer mainly relies on the alkaline solution reacting into the silicon Si and aluminium Al atoms in the source materials (Abdullah.M et al., 2011). This will result in a gel that binds aggregates together to form geopolymer concrete, which is normally assisted by the application of heat.…

    • 771 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    Ionic liquids can act as dispersing agents in paints to enhance finish, appearance and drying properties. Ionic liquids are used for dispersing nanomaterials at IOLITEC. Safety:- Due to their low volatility they are less liable to contaminate environment by releasing, but are aquatically toxic. Synthesis:- The methylimidazolium and pyridinium ions have proven to be good starting points for the development of ionic liquids. Properties, such as melting point, viscosity, and solubility of starting materials and other solvents, are determined by the substituents on the organic component and by the counter ion.…

    • 968 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    XRD patterns of Al-Gr powders Fig. 3. XRD patterns Al-Gr composite This is also in good agreement with endothermic peak at 252.5 ◦C observed in DSC of figure 2 and shown in SEM micrographs of Figure 4. The Presence of SiC as indicated in the XRD pattern confirms the feasibility of the in-situ reaction of silicon and carbon. The initiation temperature of this endothermic reaction with conventional micron sized SiC powder is usually carried out at relatively high temperature (500 ◦C or 600◦C) [22, 23].…

    • 1788 Words
    • 8 Pages
    Decent Essays
  • Decent Essays

    Ionic Bonding Essay

    • 909 Words
    • 4 Pages

    They are used as mainly because of their properties; metals are strong, ductile, have high melting points and are excellent conductors of electricity. Other properties of metals are given below: • Can be made stronger by alloys and heat treatment. • Easily machined. • Most of them are heavy. • Susceptible to corrosion.…

    • 909 Words
    • 4 Pages
    Decent Essays