| Glass-coated Wire |
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Information AboutGlass-coated Wire |
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Glass-coating is a process invented in 1924 by G. F. Taylor for producing fine Glass -coated Metal Filaments only a few Micrometre s in Diameter . In this process, known as the "Taylor-wire" or "microwire process", the metal to be produced in Microwire form is held in a glass tube, typically a Borosilicate composition, which is closed at one end. This end of the tube is then heated in order to soften the glass to a temperature at which it can be drawn down to produce a fine glass capillary containing a metal core. Metal cores in the range 1 to 20 Micrometre s with a glass coating a few micrometres in diameter can be readily produced by this method. Glass-coated microwires successfully produced by this method include Copper , Silver , Gold , Iron , and various Alloy compositions. It has even proved possible to produce Amorphous Metal ("glassy metal") cores, due to the fact that the cooling rate achievable by this process can be of the order of 1,000,000 Kelvin per second. Applications for microwire include miniature electrical components based on copper-cored microwire. Amorphous Metal cores with special Magnet ic properties can even be employed in such articles as Security Tag s and related devices. |
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