An Automated High Pressure Differential Thermal Analysis System for Phase Transformation Studies

A piston cylinder based high pressure differential thermal analyzer system is developed to investigate phase transformations, melting, glass transitions, crystallization behavior of inorganic materials, glassy systems etc., at ambient to 4 GPa and at room temperature to 1073 K. The pressure is calibrated by the phase transition of bismuth and ytterbium and temperature is calibrated by using thermocouple data chart. The system developed is calibrated using benzoic acid, ammonium nitrate and it has a pressure and temperature control of ± 8.9 x 10 -4 GPa , ± 2 K respectively. The phase transition of Asx Te100-x chalcogenides, ferrous oxide and strontium boride are studied using the indigenously developed system.

Authors:

• T. K. Mondal
• N C Shivaprakash

Keywords:

• double stage crystallization
• Phase transition
• Quasi hydrostatic
• Rigidity percolation

References:

[1] Turkevych I., Franc J., Grill R., Hoschl P., Journal of electronic
Materials 30, 2004.
[2] Ivanova Z.G., Cernoskova E. Thermochimica Acta 411 (2004) 177.
[3] Abe Akihiro., Hiejima Toshihiro., Takeda Takanori., Nakafuku Chitoshi.
Polymer 44 (2003) 3117.
[4] Wendlandt W.W. Thermal analysis. 3rd edition, John Wiley & Sons,
New york, 1985.
[5] Brunskill H.I., Schmid G.M. Thrmochim Acta 9(1981) 351.
[6] Cohen L.H., Klement W., Kennedy G.C. J Phys Chem Solids 27 (1966)
179.
[7] Kuballa M., Schneider G.M. "Ber. Bunsenges. Phys. Chem" 27(1966)
179.
[8] Bousquet J., Blanchard J.M., Bonnetot B., Claudy P. Bull Soc Chim. Er
(1969) 1841.
[9] Williams J.R., Wendlandt W.W. Thermochim. Acta 7 (1973) 269.
[10] Locke C.E. Proceedings of the Third Toronto Symposium on Thermal
Analysis, H G McAdie (ed), Chemical Institute of Canada, Toronto
(1969) 251.
[11] Jayaraman A., Hutgon A.R., McFee A.H., Coriell A.S., Maines R.G. Rev
Sci Instrum 38(1967) 44.
[12] Godovikov A.A., Sminov S.A., Malinovskii I.Yu., Ran E.N., Pankov
M.S., Rosiniskii A., Tokmin B.P. Instrum Exp Tech 14 (1971) 1769.
[13] Savill N.G., Wall W.F. J. Sci. Instrum 44 (1967) 839.
[14] Angelika Bartelt., Gerhard M.Schneider. Rev of Sci Instrum 60 (1989)
926.
[15] Mondal T.K., Murugavel S., Asokan S. Rev of Sci Instrum 70
(1998) 165.
[16] Pandey and Shah. Machine Design. Tata McGraw Hill,192,1990.
[17] Timoshenko Stephen. Strength of materials Part- 2 Advanced Theory
and Problems. CBS Publishers & Distributors, 1986.
[18] Anandkumar V. Advances in High Pressure Science and
Technology, Proceedings of the IV NCHST, sept 11 -13, IGCAR
Kalpakkam 1 (1997).
[19] ANSYS Structural Analysis Procedure Guide. Release 5.4 South
Pointe, 275, Technology Drive, Canonsburg PA.
[20] Herrmann Michael. J., Engel Walter. Journal of Propellants
Explosives Pyrotechniques 22(1997) 141-147.
[21] Titus S.S.K., Asokan S., Mondal T.K., Gopal E.S.R. Solid State
communication 89, 1 (1994) 23-26.
[22] Mondal T. K., Shivaprakash N. C., Rajanna K. Journal of High
Pressure Science and Technology 14 (2004) 86.
[23] Duncan M.Price., Mark Jarratt. Thrmochimica Acta (2002) 392.
[24] Kocherzhinskii Yurii.A., Vasilenko Vladimir.I., Vladimir Z.
Turkevich., Vladimir Z. High Temperature - High Pressure 24(1992)
533-535.
[25] www.osti.gov/energycitations/product.biblio.jsp