| Autor: |
Fujimori, Hirotaka, Yashima, Masatomo, Kakihana, Masato, Yoshimura, Masahiro |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p6493, 6p, 1 Diagram, 3 Charts, 6 Graphs |
| Abstrakt: |
Differential scanning calorimetry and Raman spectroscopy measurements have been performed to investigate the Β-cubic (c) phase transition of the compositionally homogeneous ZRO[sub 2]-22 mol % ScO[sub l.5] solid solution. The enthalpy of transition (1.11 kJ/mol of cation) and thermal hysteresis between Β- and c-phases were smaller than those between monoclinic (m) and tetragonal (t) phases of ZrO[sub 2], reflecting the structural information that the cell volume ratio of Β- to c-phases is smaller than that of m- to t-phases. Raman spectroscopy allowed us to observe the Β-c phase transition, and we could obtain Raman spectra of the c-phase in the ZrO[sub 2]- ScO[sub 1.5] system. This result was strongly supported by the observation of x-ray diffraction patterns at high temperatures. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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