Thermal properties of polycrystalline sintered SrY2O4

被引：29

作者：

Kurosaki, K ^{[1
]}

Tanaka, T ^{[1
]}

Maekawa, T ^{[1
]}

Yamanaka, S ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Nucl Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 395卷 / 1-2期

关键词：

SrY2O4; thermal expansion coefficient; thermal conductivity; thermal barrier coating;

D O I：

10.1016/j.jallcom.2004.11.041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to study the applicability of SrY2O4 to thermal barrier coating (TBC) materials, the thermal expansion coefficient and thermal conductivity of SrY2O4 were evaluated. A polycrystalline sintered SrY2O4 was prepared by solid-state reactions of SrCO3 and Y2O3 at 1273 K, followed by spark plasma sintering at 1773 K. The thermal expansion coefficient was measured by using a high temperature X-ray diffraction analysis. The thermal diffusivity was measured by a laser flush method and the thermal conductivity was evaluated. The thermal conductivity of SrY2O4 is 7.4 W m(-1) K-1 at room temperature. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：318 / 321

页数：4

共 16 条

[1]

Antony SA, 2002, MATER LETT, V57, P469, DOI 10.1016/S0167-577X(02)00814-5

[2] A polymeric gel cum auto combustion method for the lower temperature synthesis of SrR2O4 (R = Y, La, Sm, Eu, Gd, Er or Yb) [J].

Antony, SA ;

Nagaraja, KS ;

Reddy, GLN ;

Sreedharan, OM .

MATERIALS LETTERS, 2001, 51 (05) :414-419

[3]

*GTT DATA SERVICES, 1996, SGTE PUR SUBST SOL D

[4]

*JAP THERM MEAS SO, 1992, THERM DAT PERS COMP

[5]

*JCPDS, 321272 JCPDS

[6] EB-PVD process and thermal properties of hafnia-based thermal barrier coating [J].

Matsumoto, Kazuhide ;

Itoh, Yoshiyasu ;

Kameda, Tsuneji .

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2003, 4 (02) :153-158

[7] SR Y2O4 [J].

MULLERBUSCHBAUM, H .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1968, 358 (3-4) :138-+

[8] Structure and luminescence of SrY2O4:Eu [J].

Park, SJ ;

Park, CH ;

Yu, BY ;

Bae, HS ;

Kim, CH ;

Pyun, CH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (10) :3903-3906

[9] CRYSTAL DATA FOR SRRE2O4 (RE=RARE EARTH+Y, IN) [J].

PEPIN, JG .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1981, 14 (FEB) :70-71

[10]

Tresvyatskii S. G., 1971, Inorg. Mater. (USSR), V7, P1614

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