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218:'s short story "Thin Edge" (Analog, Dec 1963) a fictional borazon-tungsten cable of extraordinary tensile strength is a central plot element. The cable is developed by asteroid miners for a tow-rope for hauling asteroids. The protagonist cuts through cell bars and booby-traps his room using a single strand of the wire, similar to a
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Borazon replaced aluminium oxide for grinding hardened steels owing to its superior abrasive properties, comparable to that of diamond. Borazon is used in industrial applications to shape tools, as it can withstand temperatures greater than 2000 °C (3632 °F), much higher than that of a pure
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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 train components (e.g. camshafts, crankshafts, gears, valve stems, drive shafts, CV joints, piston pins, fuel
194:. In this story an alien spacecraft is unearthed in London and the drill is used in an attempt to open a sealed bulkhead. The shell of the object is so hard that even the Borazon drill makes no impression, and when the attempt is made, vibrations cause severe distress in people around the object.
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CBN-coated grinding wheels, referred to as
Borazon wheels, are routinely used in the machining of hard ferrous metals, cast irons, and nickel-base and cobalt-base superalloys. They can grind more material, to a higher degree of accuracy, than any other abrasive. The limiting factor in the life of
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injectors, turbochargers, and aerospace and land-based gas turbine parts such as vanes, blades, nozzles, and seals), surgical knives, blades, scissors, honing, superfinishing, cylinder liners, connecting rods, grinding of steel and paper mill rolls, and gears.
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such tools is typically determined not by wear on the cutting surface but by its break-down and separation from the metal core resulting from failure of the bonding layer.
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26:(cBN). Its color ranges from black to brown and gold, depending on the chemical bond. It is one of the hardest known materials, along with various forms of
106:. In particular, Are these parts actually made from Borazon. Or is this just a random list of parts that can be polished with a Borazon grinding wheel?.
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Landolt-Börnstein - Group VIII Advanced
Materials and Technologies: Powder Metallurgy Data. Refractory, Hard and Intermetallic Materials
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Beiss, P; Ruthardt, R; Warlimont, H, eds. (2002). "13.5 Properties of diamond and cubic boron nitride".
335:. Landolt-Börnstein - Group VIII Advanced Materials and Technologies. Vol. 2A2. pp. 118–139.
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for the material. The trademark is now owned by
Diamond Innovations, doing business as
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Description of
Borazon and Borozon as prior art in patent from 31 December 1969
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is routinely used in sublight engine parts and spaceship surface coating.
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at temperatures greater than 1800 °C (3300 °F) at 7
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because carbon tends to dissolve in iron at high temperatures.
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207:(written 1954–1956, published Jan 1957) boron nitride named
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was the conventional abrasive used on hardened steel tools.
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diamond at 871 °C (1600 °F). Other uses include
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A Borazon drill is used in the TV miniseries and film
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R. H. Wentorf (1957). "Cubic Form of Boron
Nitride".
394:Discovering a Material That's Harder Than Diamond
16:Brand name of a cubic form of boron nitride (cBN)
30:and other kinds of boron nitride. Borazon is a
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112:. There might be a discussion about this on
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34:created by heating equal quantities of
53:Borazon was first produced in 1957 by
369:Internet Speculative Fiction Database
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176:cutting and laceration of diamonds.
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403:Boron in Materials Technology
152:used for grinding very hard
204:Andromeda: A Space-Age Tale
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191:Quatermass and the Pit
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428:Superhard materials
423:Synthetic materials
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184:Cultural references
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232:Abrasive machining
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295:Archived
226:See also
150:abrasive
40:nitrogen
371:. IFSDB
261:Bibcode
209:borazon
146:diamond
100:may be
32:crystal
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20:Borazon
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