High strength yarn consisting of boron carbide fibers
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United States of America Patent
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-
Dec 9, 1980
Issued Date -
N/A
app pub date -
Dec 1, 1978
filing date -
Mar 27, 1973
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for strengthening carbide fibers by removing internal stresses caused by their formation. This process is accomplished by drawing the carbide fiber under tension through a furnace. The temperature of the furnace may range from about 2050.degree. to 2300.degree. C. while the fiber tensile stress may vary from about 200 to 3500 p.s.i. when using boron carbide fibers with diameters ranging from about 8 to 14 microns.
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