...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems >ULTRASONIC RELAXATION AND COMPLEX HEAT CAPACITY
【24h】

ULTRASONIC RELAXATION AND COMPLEX HEAT CAPACITY

机译：超声波松弛和复杂的热容量

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The similar origin of the sound absorption due to thermal relaxation processes in ultrasonic experiments and the frequency-dependent complex heat capacity measured by temperature-modulated calorimetric (TMC) experiments is reviewed. Furthermore, the similarities and limitations of the two experimental methods for investigations of the glass relaxation and the relaxation of composition fluctuations near a second-order critical point are discussed. The theories for the ultrasonic attenuation near a second-order phase transition, which include the description of the complex frequency-dependent heat capacity, are referred to and illustrated with some examples. It has been shown that, for those relaxation processes the ultrasonic spectroscopy can be considered as a high-frequency extension of the TMC. (C) 1997 Elsevier Science B.V. [References: 62]
机译：回顾了由于超声实验中的热弛豫过程和通过温度调制量热法（TMC）实验测得的频率相关的复热容而产生的相似吸声现象。此外，讨论了两种用于研究玻璃弛豫和二阶临界点附近成分波动的弛豫的实验方法的相似性和局限性。通过一些示例引用并说明了有关二阶相变附近的超声衰减的理论，其中包括对复杂频率相关热容量的描述。已经表明，对于那些松弛过程，超声光谱可以被认为是TMC的高频扩展。 （C）1997 Elsevier Science B.V. [参考：62]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号