A New Method of Quantitative Differential Thermal Analysis

作者: Takeo Ozawa

DOI: 10.1246/BCSJ.39.2071

关键词:

摘要: This paper presents a rigorous new theory of differential thermal analysis, taking account the temperature gradient in sample. From this consideration, quantitative method is proposed, where solid-cell holder low conductivity set between sample cell and metal block, thermocouple inserted tightly outside wall holder. By means arrangement, peak area becomes proportional to heat transformation, irrespective kinds states samples operational variables. The experimental verification using various effect several variables, such as heating rate, concentration diluent, packing density, depth sample, are also shown; satisfactory results obtained. Two concepts, sensitivity response time system, proposed evaluated. Conventional methods criticized, inherent limitations differential...

参考文章(25)
E. M. Barrall, R. S. Porter, J. F. Johnson, Calorimetric Studies by Differential Thermal Analysis. Analytical Chemistry. ,vol. 36, pp. 2172- 2174 ,(1964) , 10.1021/AC60217A041
C Penther, S Abrams, F Stross, Semiautomatic Thermal Analysis Apparatus Analytical Chemistry. ,vol. 23, pp. 1459- 1466 ,(1951) , 10.1021/AC60058A027
R. C. Newton, A. Jayaraman, G. C. Kennedy, The fusion curves of the alkali metals up to 50 kilobars Journal of Geophysical Research. ,vol. 67, pp. 2559- 2566 ,(1962) , 10.1029/JZ067I006P02559
Stephen Strella, Differential thermal analysis of polymers. I. The glass transition Journal of Applied Polymer Science. ,vol. 7, pp. 569- 579 ,(1963) , 10.1002/APP.1963.070070214
D. Evans, J. F. Hutton, J. B. Matthews, The influence of soap‐phase structure on some physical properties of lithium greases Journal of Chemical Technology & Biotechnology. ,vol. 2, pp. 252- 262 ,(2007) , 10.1002/JCTB.5010020507
Hirokazu Morita, H. M. Rice, Characterization of Organic Substances by Differential Thermal Analysis: General Experimental Technique Analytical Chemistry. ,vol. 27, pp. 336- 339 ,(1955) , 10.1021/AC60099A002
Stephen Strella, Differential thermal analysis of polymers. II. Melting Journal of Applied Polymer Science. ,vol. 7, pp. 1281- 1289 ,(1963) , 10.1002/APP.1963.070070409
Mark L. Dannis, Transition measurements using differential thermal analysis techniques Journal of Applied Polymer Science. ,vol. 7, pp. 231- 243 ,(1963) , 10.1002/APP.1963.070070120