Hostname: page-component-76fb5796d-x4r87 Total loading time: 0 Render date: 2024-04-27T02:14:42.027Z Has data issue: false hasContentIssue false

Deconvolution of superimposed DTA/DSC peaks using the simplex algorithm

Published online by Cambridge University Press:  31 January 2011

Robert F. Speyer
Affiliation:
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332
Get access

Abstract

Mathematical models emulating DSC/DTA traces of fusion and first-order decomposition were developed. A computer program is described that uses the simplex numerical optimization algorithm to determine the coefficients for the model equations that best fit experimental data, by the criterion of least-squared error. Use of the program permitted deconvolution of various superimposed endotherms.

Type
Articles
Copyright
Copyright © Materials Research Society 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Augis, J.A. and Bennett, J.E.J. Thermal Anal. 13, 283 (1978).CrossRefGoogle Scholar
2Kissinger, H.E.J. Res. Natl. Bur. Stand. 57, 217 (1956).CrossRefGoogle Scholar
3Kissinger, H.E.Analyt. Chem. 29, 1702 (1957).CrossRefGoogle Scholar
4Operators' Manual for the Perkin-Elmer DSC7, Perkin-Elmer Corporation, Norwalk, CT, 1987.Google Scholar
5Speyer, R. F. and Risbud, S. H.Advances in Ceramics, Nucleation and Crystallization in Glasses, edited by Simmons, J. H.Uhlmann, D.R., and Beall, G. H. (The American Ceramic Society, Westerville, OH, 1982), Vol. 4, pp. 182192.Google Scholar
6Speyer, R. F. and Risbud, S. H.Physics and Chemistry of Glasses 24, 26 (1983).Google Scholar
7Speyer, R.F. and Risbud, S.H.Metall. Trans. 17A, 561 (1986).Google Scholar
8Speyer, R.F. and Risbud, S.H.Thermochim. Acta 131, 211, 225 (1988).CrossRefGoogle Scholar
9Yinnon, H. and Uhlmann, D.R.J. Non-Cryst. Solids 3, 54 (1983).Google Scholar
10Clarke, T.A.Evans, E.L.Robbins, K.G. and Thomas, J. M.Chem. Comm. 266 (1969).Google Scholar
11Henderson, D.W.J. Non-Cryst. Solids 30, 301 (1979).CrossRefGoogle Scholar
12Thermal Analysis Newsletter, Number 9, Perkin-Elmer Corporation, Norwalk, CT, 1970.Google Scholar
13Speyer, R.F.Richardson, B.C. and Risbud, S.H.Metall. Trans. 17A, 1479 (1986).Google Scholar
14Christian, J. W.The Theory of Transformations in Metals and Alloys (Pergamon Press, New York, 1975).Google Scholar
15Daniels, R. W.An Introduction to Numerical Methods and Optimization Techniques (North-Holland Press, Amsterdam, 1978), p. 183.Google Scholar
16Gray, A.P.Analytical Calorimetry, edited by Porter, R.F. and Johnson, J. M. (Plenum Press, New York, 1968), p. 209.Google Scholar
17Borchardt, H. J. and Daniels, F.J. Am. Chem. Soc. 79, 41 (1957).CrossRefGoogle Scholar