FT-IR and laser Raman spectroscopic investigation of the formation and stability of low temperature t-ZrO2

被引:48
作者
Stefanic, G [1 ]
Music, S [1 ]
Popovic, S [1 ]
Sekulic, A [1 ]
机构
[1] UNIV ZAGREB,FAC SCI,DEPT PHYS,ZAGREB 10001,CROATIA
关键词
t-ZrO2; m-ZrO2; FT-IR; Raman; XRD;
D O I
10.1016/S0022-2860(96)09549-X
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
The influence of the preparation chemistry on the formation and the stability of metastable t-ZrO2 was studied. gamma-Irradiation has very small (if any) influence on the r-ZrO2 --> m-ZrO2 transition, while increased temperature and pressure caused gradual transition of pure r-ZrO2 to m-ZrO2. Metastable t-ZrO2 containing SO42- impuirties proved to be more stable, and its transition was not uniform. The mentioned effects were monitored by FT-IR and laser Raman spectroscopy. X-ray diffraction was used as a complementary technique. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:391 / 394
页数:4
相关论文
共 6 条
[1]  
BAILEY JE, 1972, BRIT CERAM TRANS J, V71, P25
[2]   SULFATED ZIRCONIA CATALYSTS - THE CRYSTAL PHASES AND THEIR TRANSFORMATIONS [J].
SRINIVASAN, R ;
WATKINS, TR ;
HUBBARD, CR ;
DAVIS, BH .
CHEMISTRY OF MATERIALS, 1995, 7 (04) :725-730
[3]  
Stefanic G, 1996, CROAT CHEM ACTA, V69, P223
[4]   Influence of precipitation chemistry and ball-milling on the thermal behavior of zirconium hydroxide [J].
Stefanic, G ;
Music, S ;
Sekulic, A .
THERMOCHIMICA ACTA, 1996, 273 :119-133
[5]   THE EFFECT OF MECHANICAL TREATMENT OF ZIRCONIUM(IV) HYDROXIDE ON ITS THERMAL-BEHAVIOR [J].
STEFANIC, G ;
POPOVIC, S ;
MUSIC, S .
THERMOCHIMICA ACTA, 1995, 259 (02) :225-234
[6]  
STEFANIC G, IN PRESS