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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >High-temperature heat capacity and heat content of CaCu_3Ti_4O_(12) (CCTO)
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High-temperature heat capacity and heat content of CaCu_3Ti_4O_(12) (CCTO)

机译：CaCu_3Ti_4O_（12）（CCTO）的高温热容和热含量

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摘要

The isobaric heat capacity of CaCu_3Ti_4O_(12) (CCTO) was measured from 300 to HOOK using differential scanning calorimetry (DSC). The results were verified using drop calorimetric measurement of enthalpy increment (H_T - H_(298.15)) at T= 973 and 1073 K. The samples were dropped from room temperature into a calorimeter maintained at high temperature. The results show small negative deviation from Neumann-Kopp rule. The enthalpy and entropy increments are computed as a function of temperature and compared with values available in the literature. The results obtained in this study are consistent with available information on enthalpy and Gibbs energy of formation of CCTO.
机译：使用差示扫描量热法（DSC）从300到HOOK测量了CaCu_3Ti_4O_（12）（CCTO）的等压热容。使用焓降的量热法（H_T-H_（298.15））在T = 973和1073 K时验证了结果。将样品从室温滴入保持在高温的量热计中。结果表明，与Neumann-Kopp规则的负偏差较小。焓和熵的增量作为温度的函数进行计算，并与文献中提供的值进行比较。这项研究中获得的结果与CCTO形成的焓和吉布斯能量的可用信息一致。

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