At 950 ℃ high speed pressing attainable relative density greater than 80.65% of W
skeleton, by infiltration get 90W10Cu composites.
At room temperature, 600 ℃,
950 ℃ for
high-speed tungsten preform pressing, pressing as the temperature rises, the
green density increases.
High velocity compaction, powder mass increases, due to the ability of
additional density decreases, resulting green density decreases. With the increase
in the number of high-speed pressing, green density is improved.
Using high-speed pressing technology combined with infiltration of 90W10Cu
preparation material and the thermal expansion coefficient and other indicators
have reached the requirements of the appropriate heat sink material.
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