| Low temperature activated sintering of 3 µm tungsten powder was studied. Sintering process was activated by vibration milling and by additions of W nanopowder of less than 10 nm in mean diameter, as well as combination of those techniques. There were no any additions of transition metals such Ni, Co or Fe. The blend of W micron size powder after mechanoactivation with 20% of W nanopowder showed sintering density up to 97% of theoretical density and high chemical purity. |
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