Stainless steel short fiber and process for preparing the same
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United States of America Patent
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-
Mar 22, 1983
Grant Date -
N/A
app pub date -
Jun 25, 1981
filing date -
Jun 27, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A columnar stainless steel short fiber having a diameter of 2 to 20 .mu.m. and an aspect ratio of the length to the diameter of 1 to 50. The short fiber is prepared by heat-treating a stainless steel fiber for adjusting the growth of crystal grains and subjecting the heat-treated fiber to intergranular selective corrosion in an acidic solution. The short fiber is useful as a material of sintered metallic filters, and sintered compacts of the short fiber have high porosity, uniform pore size, excellent mechanical strength and small pressure loss.
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