Studies on thermal hysteresis of KNO3 by thermo-Raman spectroscopy

ASIA unversity > 醫學暨健康學院 > 食品營養與保健生技學系 > 期刊論文 > Item 310904400/2253

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题名:	Studies on thermal hysteresis of KNO3 by thermo-Raman spectroscopy
作者:	Ramaswamy Murugan;Pei Jane Huang;Anil Ghule;Hua Chang
贡献者:	保健營養生技學系
关键词:	KNO3;Phase transformations;Thermal hysteresis;Thermo-Raman spectroscopy
日期:	2000-03
上传时间:	2009-11-03 06:41:56 (UTC+0)
摘要:	In this work, the polymorphic phase transformations of KNO3were studied by thermo-Raman spectroscopy in a dynamical thermal process with a heating rate of 5°C min−1 from 30°C to 170°C and then cooling down to 30°C at the same rate. Three distinct phase transformations were detected. The characteristic spectrum for each phase was identified. The nature of each phase transformation was investigated in detail through the studies on spectral variation, intensity, intensity variation and shift in band position. In addition, the intensity variation of the ν1 mode at 1042 cm−1 clearly revealed thermal hysteresis involved in the phase transformation of KNO3. Furthermore, the thermal hysteresis of each phase was also obtained from the ν3 mode in the range from 1341 to 1354 cm−1.
關聯:	Thermochimica Acta, 346(1-2):83-90.
显示于类别:	[食品營養與保健生技學系] 期刊論文

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