THERMAL-EXPANSION STUDIES ON SOME RARE-EARTH PYROHAFNATES BY HIGH-TEMPERATURE X-RAY-POWDER DIFFRACTOMETRY

被引：8
|
作者：
KUTTY, KVG
RAJAGOPALAN, S
ASUVATHRAMAN, R
机构：
[1] 1 1 All correspondence should be addressed to Dr. C.K. Mathews at this address.Radiochemistry Progra, Indira Gandhi Centre for Atomic Research, Kalpakkam
来源：
THERMOCHIMICA ACTA | 1990年 / 168卷
关键词：
D O I：
10.1016/0040-6031(90)80639-G
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Pyrohafnates of rare-earth elements have potential applications as neutron absorber materials in nuclear technology. These compounds have the general formula R2Hf2O7, where R represents the rare-earth element. The percentage thermal expansion of lanthanum, europium and gadolinium pyrohafnates has been measured from room temperature to 1473 K by X-ray powder diffractometry. © 1990.
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页码：205 / 209
页数：5
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