High pressure synthesis of orthorhombic SnO2 |
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Authors: | K. Suito N. Kawai Y. Masuda |
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Affiliation: | Faculty of Engineering Science, Osaka University Toyonaka, Osaka 560, Japan;Faculty of Liberal Arts and Sciences University of Osaka Prefecture Sakai, Osaka 591, Japan |
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Abstract: | A dense form of SnO2 with an orthorhombic structure has been synthesized at 158 kbar and 800 °C. The boundary separating the normal pressure phase (tetragonal SnO2-I) from the high pressure phase (orthorhombic SnO2-II) is represented by P(kbar) = 140.0 + 0.022 T(°C). The lattice parameters of the quenched high pressure phase (SnO2-II) are : , and with the cell volume . The volume decrease for the transition is calculated to be 1.8 %. |
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