발간논문

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Vol.37, No.10, 1233 ~ 1238, 1999
Title
Synthesis of Nanostructure W Base Composite Powders by Chemical Processes
이길근Gil Geun Lee,하국현Gook Hyun Ha,김병기Byoung Kee Kim
Abstract
New manufacturing processes, such as thermochemical and mechanochemical process, have been developed to obtain nanostructure W base composite powders using metal organic precursor as the starting materials. Nanostructure WC/Co and W/Cu powders which have homogeneous mixing state of component particles with 60㎚∼100㎚ particle size can be synthesized by the thermochemical and mechanochemical processing method. Nanostructure WC/Co powder has better sinterability than conventional submicron WC/Co powder. The combination of a thermochemical process and mechanical process is a useful method to obtain full density W-20 wt.%Cu composite alloy without addition of sintering activator by liquid phase sintering. The present study focuses on investigating the technical issues in manufacturing nanostructure W base composite powders by chemical processes.
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