Search Results - (Author, Cooperation:M. A. Bouhifd)
-
1Effect of the fcc-hcp martensitic transition on the equation of state of solid krypton up to 140 GPaA. D. Rosa, G. Garbarino, R. Briggs, V. Svitlyk, G. Morard, M. A. Bouhifd, J. Jacobs, T. Irifune, O. Mathon, and S. Pascarelli
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-03-31Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: Structure, structural phase transitions, mechanical properties, defectsPublished by: -
2D. Andrault ; G. Pesce ; M. A. Bouhifd ; N. Bolfan-Casanova ; J. M. Henot ; M. Mezouar
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-05-24Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Clesi, V., Bouhifd, M. A., Bolfan-Casanova, N., Manthilake, G., Schiavi, F., Raepsaet, C., Bureau, H., Khodja, H., Andrault, D.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-03-15Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
4Staff View
ISSN: 1432-2021Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyGeosciencesPhysicsNotes: Abstract The effect of (Mg,Fe) substitution on the compression and pressure-induced amorphization of olivines has been investigated up to more than 50 GPa in a diamond anvil cell through energy-dispersive X-ray diffraction experiments with synchrotron radiation. For the four (Mg1−x , Fe x )2SiO4 olivines studied, the compressibility is the highest along the b axis and the smallest along the a axis. For compositions with x = 0, 0.17, 0.66, and 1, the slope of the volume-pressure curves shows a rapid decrease at pressures of around 42, 34, 20 and 10 GPa, respectively. Assuming K′0 = 4, we obtained at lower pressures with a Birch-Murnaghan equation of state essentially the same room-pressure bulk modulus for all olivines, namely K 0 = 131 ± 6 GPa, in agreement with previous single-crystal compression and ultrasonic measurements. At higher pressures, the compression becomes nearly isotropic and the materials very stiff. These changes could precede partial transformation of olivines to a high-pressure polymorph related to the spinel structure. Only a small fraction of olivines seems to transform actually to this phase, however, because most of the material undergoes instead pressure-induced amorphization which take place at considerably higher pressures for Mg-than for Fe-rich olivines.Type of Medium: Electronic ResourceURL: