METHOD OF PREPARING TUNGSTEN METAL MATERIAL AND TUNGSTEN TARGET WITH HIGH PURITY
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Nov 30, 2016
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Jul 20, 2016
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A method of preparing a tungsten metal material with high purity, comprising the steps of (A) providing a tungsten metal powder to mix with a metal nitrate to form a mixed powder slurry; (B) ball-grinding the mixed powder slurry to obtain a uniformly mixed powder; (C) sintering the uniformly mixed powder to obtain the tungsten metal material with high purity. Accordingly, the tungsten metal material with purity more than 99.9% can be prepared, so as to prepare the tungsten metal target.
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