Synthesis And Raman Spectroscopic Studies of NaZr2(PO4)3

被引：1
作者：
Kamali, K. [1 ]
Ravindran, T. R. [1 ]
Sridharan, V. [1 ]
Nithya, R. [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, Mat Sci Grp, Kalpakkam 603102, Tamil Nadu, India
来源：
SOLID STATE PHYSICS, PTS 1 AND 2 | 2012年 / 1447卷
关键词：
NZP; sol gel method; NTE; Raman spectroscopy; EXPANSION; CERAMICS; FAMILY; RANGE;
D O I：
10.1063/1.4710256
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Sodium Zirconium Phosphate (NaZr2(PO4)(3)), a low thermal expansion material is synthesized by aqueous sol gel method. Raman spectroscopic studies are carried out as a function of temperature from 80 K to 860 K. The modes at 72 and 423 cm(-1) exhibit a positive temperature coefficient which points to their negative role in thermal expansion. These modes are due to the translational motion of Na atoms and rotational motion of PO4 ions respectively, and it is conceivable that they contribute to negative thermal expansion in this material.
引用
收藏
页码：823 / 824
页数：2
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