高温热容Li, Sc -германатLiScGeO = SUB - 4 = / SUB - Li, Sc -硅酸盐LiScSiO = SUB - 4 = / SUB

Физика твердого тела Pub Date : 2023-01-01 DOI:10.21883/ftt.2023.09.56246.152

Л. А. Иртюго, Л. Т. Денисова, Г. В. Васильев, В. М. Денисов

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引用次数: 0

摘要

以li2co3、sc2o3、geo2 (sio2)为原料，采用固相法合成了lisc2o4和lisc2o4化合物。它们的晶体结构已经用x射线衍射测定出来了。用差示扫描量热法测定了所得锗酸锂钪和硅酸盐的高温热容(320 ~ 1050 K)。根据热容的实验数据，重新计算了其热力学性质。

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Высокотемпературная теплоемкость Li, Sc-германата LiScGeO-=SUB=-4-=/SUB=- и Li, Sc-силиката LiScSiO-=SUB=-4-=/SUB=-

LiScGeO 4 and LiScSiO 4 compounds were obtained by solid-phase synthesis from Li 2 CO 3 , Sc 2 O 3 , GeO 2 (SiO 2 ). Their crystal structure has been refined using X-ray diffraction. The high-temperature heat capacity (320–1050 K) of the obtained lithium-scandium germanate and silicate was measured by differential scanning calorimetry. The thermodynamic properties were calculated based on the experimental data about heat capacity.

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Физика твердого тела

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