Ultra High Purity Molybdenum and Tungsten
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- Category: Molybdenum knowledge
- Published on 31 July 2013
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Applying a recently developed three dimensional SIMS imaging technique major differences in the distribution of trace elements in ultra high purity molybdenum and tungsten have been found.
In the electron beam melted material severe grain boundary segregation of trace elements have occurred whereas in the hot pressed material trace elements have been present as precipitates with a size of 5–15 μm.
Guided by the results of the 3D-SIMS images and the advantages of the sintering process a material with homogeneous distribution of trace elements has been developed and characterised.
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