Physics
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pepi...36..124a&link_type=abstract
Physics of the Earth and Planetary Interiors, Volume 36, Issue 2, p. 124-134.
Physics
64
Scientific paper
High temperature solution calorimetry of synthetic quartz, coesite and stishovite provides enthalpies of transition. ΔH9750 for quartz-coesite and ΔH2980 for coesite-stishovite transition are 320 +/- 70 and 11700 +/- 410 cal mol-1, respectively. The present transformation enthalpy data represent a small but significant revision of those of Holm et al. Using the published phase equilibrium data, thermal expansivity, compressibility and heat capacity data, ΔS9750 for the quartz-coesite and ΔS2980 for the coesite-stishovite transition are -1.2 +/- 0.1 and -1.0 +/- 0.4 cal K-1 mol-1, respectively. These thermochemical data are used to calculate phase boundaries of the transitions. The calculated quartz-coesite transition boundary agrees well with the one determined experimentally by Bohlen and Boettcher. The calculated coesite-stishovite boundary is generally consistent with data by Yagi and Akimoto and by Suito.
Akaogi Masaki
Navrotsky Alexandra
No associations
LandOfFree
The quartz-coesite-stishovite transformations: new calorimetric measurements and calculation of phase diagrams does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The quartz-coesite-stishovite transformations: new calorimetric measurements and calculation of phase diagrams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The quartz-coesite-stishovite transformations: new calorimetric measurements and calculation of phase diagrams will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-739241