High-pressure behavior of sillimanite and kyanite: Compressibility, decomposition and indications of a new high-pressure phase
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| 024 | 7 | 0 | |a 10.1524/zkri.219.6.324.34635 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/zkri.219.6.324.34635 | ||
| 245 | 0 | 0 | |a High-pressure behavior of sillimanite and kyanite: Compressibility, decomposition and indications of a new high-pressure phase |h [Elektronische Daten] |c [Alexandra Friedrich, Martin Kunz, Björn Winkler, Tristan Le Bihan] |
| 520 | 3 | |a The high-pressure behavior of the two Al2SiO5 polymorphs sillimanite and kyanite was investigated up to 46 and 53 GPa, respectively, using a diamond-anvil cell and powder X-ray synchrotron diffraction. The bulk moduli of sillimanite and kyanite obtained from a fit to a second-order Birch-Murnaghan equation of state are B0 = 176(11) GPa and B0 = 190(3) GPa at fixed B′ = 4, respectively. The samples were laser annealed several times at high pressures. After laser annealing at 46 GPa, sillimanite was decomposed into its oxide components corundum (Al2O3) and stishovite (SiO2). The high-pressure behavior of kyanite, however, is more complicated. Up to 20 GPa, kyanite remains stable. At 30 GPa a new high-pressure form is observed, which seems to be structurally related to kyanite. After laser heating, it partly decomposed into corundum and stishovite. However, when laser heating at much higher pressures of 47 to 53 GPa, the new phase remains stable. | |
| 540 | |a © 2004 Oldenbourg Wissenschaftsverlag GmbH | ||
| 690 | 7 | |a Crystallography |2 nationallicence | |
| 690 | 7 | |a Inorganic chemistry |2 nationallicence | |
| 690 | 7 | |a Organic chemistry |2 nationallicence | |
| 700 | 1 | |a Friedrich |D Alexandra |4 aut | |
| 700 | 1 | |a Kunz |D Martin |4 aut | |
| 700 | 1 | |a Winkler |D Björn |4 aut | |
| 700 | 1 | |a Le Bihan |D Tristan |4 aut | |
| 773 | 0 | |t Zeitschrift für Kristallographie - Crystalline Materials |d De Gruyter Oldenbourg |g 219/6(2004-06-01), 324-329 |x 2194-4946 |q 219:6<324 |1 2004 |2 219 |o zkri | |
| 856 | 4 | 0 | |u https://doi.org/10.1524/zkri.219.6.324.34635 |q text/html |z Onlinezugriff via DOI |
| 908 | |D 1 |a research article |2 jats | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1524/zkri.219.6.324.34635 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Friedrich |D Alexandra |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kunz |D Martin |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Winkler |D Björn |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Le Bihan |D Tristan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Zeitschrift für Kristallographie - Crystalline Materials |d De Gruyter Oldenbourg |g 219/6(2004-06-01), 324-329 |x 2194-4946 |q 219:6<324 |1 2004 |2 219 |o zkri | ||
| 900 | 7 | |b CC0 |u http://creativecommons.org/publicdomain/zero/1.0 |2 nationallicence | |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-gruyter | ||