The Doped Molybdenum Wire
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- Category: Molybdenum knowledge
- Published on 06 August 2013
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Entrapped materials in the bubbles formed in the K- and Si-doped and hot isostatically pressed molybdenum wire were examined by means of scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) spectroscopy.
Solidified particles entrapped in the bubbles were identified as Al-K-Si leucite-type oxide. After reheating these solidified particles at 1900 °C for 5 minutes under atmospheric pressure.
However, a portion of the particle was homogeneously volatilized. The remainder was identified as an Al-K-Si mullite-type oxide.
Therefore, it can be concluded that the added dopants form a single phase upon annealing, and the formation of bubbles in the doped molybdenum wire is due to volatilization of Al-K-Si oxides.
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