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Borazon
Borazon is a brand name of a cubic form of boron nitride (cBN). Its color ranges from black to brown and gold. It is one of the hardest known materials, along with various forms of diamond and other kinds of boron nitride. Borazon is a crystal created by heating equal quantities of boron and nitrogen at temperatures greater than 1800 °C (3300 °F) at 7 GPa (1 million lbf/in2). Borazon was first produced in 1957 by Robert H. Wentorf, Jr., a physical chemist working for the General Electric. In 1969, General Electric adopted the name Borazon as its trademark for the material. The trademark is now owned by Diamond Innovations, doing business aHyperion Materials & Technologies, Inc. and Borazon is manufactured only by Hyperion Materials & Technologies. Uses and production Borazon has a number of uses , such as: cutting tools, dies, punches, shears, knives, saw blades, bearing rings, needles, rollers, spacers, balls, pump and compressor parts, engine and drive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Monomolecular Wire
Monomolecular wire is a type of wire consisting of a single strand of strongly bonded atoms or molecules, such as carbon nanotubes. In science Organic molecular wires have been proposed for use in optoelectronics. In fiction Among the earliest descriptions of a super-strong filament are the film ''The Man in the White Suit'', in which a scientist develops a monofilament cloth fibre that will never wear out, and Theodore Sturgeon's "The Incubi of Parallel X" (Planet Stories, Sep 1951), where a "molecularly condensed fibre" is used as a zipline. An early example of a material similar to monomolecular wire deliberately used as a weapon and cutting tool is "borazon-tungsten filament" in G. Randall Garrett's "Thin Edge". (Analog, Dec 1963) The main character uses a strand from an asteroid towing-cable to cut jail bars and to booby-trap the door of his room. Many later writers, including John Brunner, Frank Herbert, William Gibson and George R. R. Martin, have also used monomolecu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
