β-cubic phase transition of scandia-doped zirconia solid solution:: Calorimetry, x-ray diffraction, and Raman scattering

被引：56

作者：

Fujimori, H ^{[1
]}

Yashima, M ^{[1
]}

Kakihana, M ^{[1
]}

Yoshimura, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 91卷 / 10期

关键词：

D O I：

10.1063/1.1471576

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Differential scanning calorimetry and Raman spectroscopy measurements have been performed to investigate the beta-cubic (c) phase transition of the compositionally homogeneous ZrO2-22 mol % ScO1.5 solid solution. The enthalpy of transition (1.11 kJ/mol of cation) and thermal hysteresis between beta- and c-phases were smaller than those between monoclinic (m) and tetragonal (t) phases of ZrO2, reflecting the structural information that the cell volume ratio of beta- to c-phases is smaller than that of m- to t-phases. Raman spectroscopy allowed us to observe the beta-c phase transition, and we could obtain Raman spectra of the c-phase in the ZrO2-ScO1.5 system. This result was strongly supported by the observation of x-ray diffraction patterns at high temperatures. (C) 2002 American Institute of Physics.

引用

页码：6493 / 6498

页数：6

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