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Complex hydrides studied by Raman spectroscopy and thermal conductivity measurements under high pressure
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- Sundqvist, Bertil (author)
- Umeå universitet,Institutionen för fysik
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- Talyzin, Alexandr (author)
- Umeå universitet,Institutionen för fysik
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- Andersson, Ove (author)
- Umeå universitet,Institutionen för fysik
- (creator_code:org_t)
- Warrendale : Materials Research Society, 2006
- 2006
- English.
- In: Hydrogen Storage Technologies. - Warrendale : Materials Research Society. ; , s. 7-12
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- The pressure-temperature phase diagrams of alkali metal alanates and borohydrides are of large current interest, and we have recently studied phase transformations under pressure in several of these materials. We here report Raman studies of KBH4 under pressure at room temperature, showing a phase transition near 6 GPa. Although no structural information is yet available, the similarity between KBH4 and NaBH4 suggests the new structure is orthorhombic. We also report studies on LiBH4 showing that the high pressure phase of this material is metastable to zero pressure below 200 K.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Hydrides
- hydrogen storage
- vätelagring
- LiBH4
- KBH4
- NaBH
- high pressure
- Raman spectroscopy
- thermal conductivity
- phase diagram
- phase transition
- density
- metastability
- Condensed matter physics
- Kondenserade materiens fysik
- fysik
- Physics
Publication and Content Type
- ref (subject category)
- kon (subject category)
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