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- Dubrovinskaia, NA, et al.
(författare)
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Direct transition from cristobalite to post-stishovite alpha-PbO2-like silica phase
- 2001
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Ingår i: EUROPEAN JOURNAL OF MINERALOGY. - : E SCHWEIZERBARTSCHE VERLAGS. - 0935-1221. ; 13:3, s. 479-483
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Tidskriftsartikel (refereegranskat)abstract
- In situ X-ray studies in diamond anvil cells at pressures over 80 GPa were used to determine a stable silica phase at extreme conditions. We demonstrate that so far unidentified phases obtained on compression of alpha -cristobalite and a new dense silica
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2. |
- Dubrovinsky, LS, et al.
(författare)
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Stability of beta-iron: A new synchrotron X-ray study of heated iron at high pressure
- 1998
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Ingår i: EUROPEAN JOURNAL OF MINERALOGY. - 0935-1221. ; 10:1, s. 43-47
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Tidskriftsartikel (refereegranskat)abstract
- We have conducted a new study on the stability of the beta-iron phase at high pressure and temperature. With the X-ray study of the electrically heated iron wire at pressures between 35 and 68 GPa, we are able to demonstrate the reversibility of transform
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