| http://www.w3.org/ns/prov#value | - The potassium titanate fibers which can be used in the invention are a kind of whisker and a needle-like crystals having a fundamental, chemical composition K2 O.6TiO2, K2 O.6TiO2.H2 O. A representative melting point is from 1300??? to 1350??? C. An average fiber length is usually from 5 to 50 ??m, preferably from 20 to 30 ??m.
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