Abstract
Nitrate powder with cation composition Bi:Pb:Sr:Ba:Ca:Cu = 1.8:0.4:1.8:0.2:1.2:2.0 was obtained by spray-frozen, freeze-drying technique. Samples of the nitrate precursor powder were placed in a heated furnace (heating rate ∼100°C/min) and extracted in air when temperature of the powdered samples attained values of 439, 495, 550, 600, 640, 647, 717, 766, 814, and 850°C. Samples have been investigated by X-ray diffraction analysis. The obtained data allow us to propose and discuss phase formation and decomposition processes and reactions that occur in non-isothermal conditions at different temperatures during thermal decomposition of the nitrate powder.
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REFERENCES
Y. K. Sun and W. Y. Lee, Physica C 212, 37 (1993).
Y. Tartaj, C. Moure, J. F. Fernandez, and P. Duran, Proc. Third Euro-Ceramics 2, 629 (1993).
S. K. Sinha, S. C. Gadkari, S. C. Sabharwal, L. C. Gupta, and M. K. Gupta, Physica C 185–189, 499 (1991).
T. L. Ward, S. W. Lyons, and T. T. Kodas, Physica C 200, 31 (1992).
A. Jeremie, G. Grasso, and R. Flukinger, Physica C 225, 53 (1995).
K. H. Song, H. K. Liu, S. X. Dou, and C. C. Sorrel, J. Amer. Ceram. Soc. 73, 149 (1992).
V. P. Shabatin, V. V. Palachev, and M. V. Lomanova, Tezisi dokladov 5 vsesoiuznoi konferentii po chimii nizkih temperatur, Moskva, 10–13 Dec. 1991, p. 190 (1991) (In Russian).
V. Primo, F. Sapina, M. J. Sanchis, R. Ibanez, A. Beltran, and D. Beltran, Matter. Lett. 15, 149 (1992).
P. Krishnaraj, M. Lelovic, and N. G. Eror, Physica C 215, 305 (1993).
N. V. Coppa, W. L. Hults, J. L. Smith, and J. Brynestad, J. Mater. Res. 9, 2510 (1994).
T. Uzumaki, K. Yamanaka, N. Kamehara, and K. Niwa, Jpn. J. Appl. Phys. 28, L75 (1989).
X. Zhengping, Z. Lian, J. Chunlin et al., Adv. Cryog. Eng. 38, 1057 (1992).
X. Zhengping, Z. Lian, and J. Chunlin, Supercond. Sci. Technol. 5, 240 (1992).
T. E. Os'kina, T. E. Kazin, and Yu. D. Tretyakov, SFXT 5 (7), 1298 (1992) (In Russian).
T. E. Os'kina and Yu. D. Tretyakov, Dokl. PAN 321 (5), 993 (1991) (In Russian).
D. Pandey, A. K. Singh, and A. P. Singh, Physica C 204, 179 (1994).
S. E. Dorris, B.C. Prorok, M. T. Lanagan, S. Sinha, and R. B. Poeppel, Physica C 212, 66 (1993).
G. Aldica, G. M. Mironova, N. C. Popa, A. D. Stoica, and M. G. Stoica, J. Supercond. 6 (4), 273 (1993).
M. G. Smith, J. O. Willis, D. E. Peterson, J. F. Bingert, D. S. Phillips, J. Y. Coulter, K. V. Salazar, and W. L. Hults, Physica C 231, 409, (1994).
G. Aldica, A. F. Alexeev, P. Badica, T. Y. Gridasova, and V. V. Morozov, Electronnoe stroenie i svoistva tugoplavkih soedinenii i metalov, IPM-NAN Ukraine (1995) p.95 (In Russian).
B. J. Reardon and C. R. Hubbard, Powder Diffraction 7 (2), 96 (1992).
S. G. Titova, V. A. Fotiev, O. M. Fyodorova, and V. F. Balakirev, Physica C 185–189, 661 (1991).
G. Zorn, B. Seebacher, B. Jobst, and H. Gobel, Physica C 177, 494 (1991).
C. Muller, P. Majewski, G. Thurn, and F. Aldinger, Physica C 275, 337 (1997).
V. P. Shabatin, V. V. Palachev, F. M. Spiridonov, and P. E. Kazin, Tezisi dokladov 5 vsesoiuznoi konferentii po chimii nizkih temperatur, Moskva, 10–13 Dec. 1991, p. 154 (1991) (In Russian).
G. Xiong, M. Wang, X. Fan, and X. Tang, Appl. Phys. A 56, 99 (1993).
B. J. Reardon and C. R. Hubbard, Powder Diffraction 7 (3), 142 (1992).
G. Aldica and P. Badica, Proc. Suppl. Balkan Phys. Lett. 5, 666 (1997).
P. Badica, G. Aldica, M-C. Bunescu, and A. V. Nemyrovsky, presented at 17th TFD. 27–31 Oct. 1998. Alanya, Turkey, to be published in J. Mater. Sci. Lett.
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Badica, P., Aldica, G. Phase Formation During Nonisothermal Decomposition of the Freeze-Dried Bi:Pb:Sr:Ba:Ca:Cu = 1.8:0.4:1.8:0.2:1.2:2.0 Complex Nitrate Powder. Journal of Superconductivity 12, 609–615 (1999). https://doi.org/10.1023/A:1007739716481
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DOI: https://doi.org/10.1023/A:1007739716481