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- Morales, R., et al.
(author)
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The powder metallurgy processing of refractory metals and alloys
- 2003
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In: JOM. - : Springer Science and Business Media LLC. - 1047-4838 .- 1543-1851. ; 55:10, s. 20-23
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Journal article (peer-reviewed)abstract
- Molybdenum and tungsten are refractory metals in the elemental form with the largest production volume in the world. The fabrication of these refractory metals, as wall as their alloys and intermetallics, using high-temperature powder metallurgy (PM) is reviewed in this article. The primary focus is on the role of traditional high-temperature PM in producing alloys with tailor-made properties. An insight into the bulk production of molybdenum and tungsten alloys with nano-grains is highlighted.
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- Wills, J. M., et al.
(author)
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A novel electronic configuration of the 5f states in delta-plutonium as revealed by the photo-electron spectra
- 2004
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In: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier BV. - 0368-2048 .- 1873-2526. ; 135:2-3, s. 163-166
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Journal article (peer-reviewed)abstract
- We present a theoretical model, the mixed-level model, aiming at describing metals with very complex, strongly correlated, electronic structures. As a demonstration, it is applied to the electronic structure of delta-Pu. The model reproduces the electronic-structure related properties of this complex metal; in particular, the theory is capable of reproducing the valence band photoemission spectrum of delta-Pu. We also report new experimental photoemission spectra at several photon energies. Taken together, our results provide strong evidence that the electronic structure of delta-Pu involves a 5f shell with four electrons in a localized multiplet hybridizing with valence states, and approximately one 5f electron forming a completely delocalized band state.
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