VARYING TEMPERATURE RAMAN SCATTERING STUDIES OF 12 mol% Ce TETRAGONAL ZIRCONIA POLYCRYSTAL | Zendy

Cheng Guang-Xu | Zendy; Xingkui Zhang | Zendy

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VARYING TEMPERATURE RAMAN SCATTERING STUDIES OF 12 mol% Ce TETRAGONAL ZIRCONIA POLYCRYSTAL

Author(s) -

Cheng Guang-Xu,

Xingkui Zhang

Publication year - 1990

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.39.162

Subject(s) - tetragonal crystal system , materials science , monoclinic crystal system , raman scattering , raman spectroscopy , phase transition , brillouin zone , atmospheric temperature range , brillouin scattering , phonon , condensed matter physics , phase (matter) , transition temperature , crystal structure , crystallography , optics , chemistry , thermodynamics , physics , superconductivity , organic chemistry , optical fiber

Raman scattering studies have been carried out on 12 mol% Ce-Tetragonal Zirconia Poly-crystal over 50-800cm-1, and a range of temperature 17-505K, a phase transition was observed from the tetragonal-like to monoclinic-like phase at approximately 165±1K when the temperature was lowering. The reverse transition occurred at approximately 450±2K when the temperature was raising.In order to study the reason of this transition, the condensation of the phonons in Brillouin zone and possible phase transition have been carefully discussed.

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