Abstract
This paper examines the effect of exposure to high-intensity light on the formation of fractal micro- and nanostructures and the thermal expansion of tantalum pentoxide and niobium pentoxide ceramics. After such processing, the thermal expansion curve of Ta2O5 shows anomalous regions of zero or negative expansion, whereas the thermal expansion of Nb2O5 ceramics decreases in magnitude in the region of negative values, and their thermal expansion curve becomes more symmetrical.
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References
Sleight, A.W., Negative Thermal Expansion, Inorg. Chem., 1998, no. 37, pp. 2854–2860.
Evans, J.S.O., Mary, T.A., Vogt, T., et al., Negative Thermal Expansion in ZrW2O8 and HfW2O8, Chem. Mater., 1996, vol. 8, pp. 2809–2823.
Brown, I.D. and Shannon, R.D., Empirical Bond-Strength-Bond-Length Curves for Oxides, Acta Crystallogr., Sect. A: Cryst. Phys., Diffr., Theor. Gen. Crystallogr., 1973, vol. 29, pp. 266–282.
Korthuis, V., Khosrovani, N., Sleight, A.W., et al., Negative Thermal Expansion and Phase Transitions in a ZrV2 − x PxO7 Series, Chem. Mater., 1995, vol. 7, pp. 412–417.
Mary, T.A., Evans, J.S.O., Sleight, A.W., and Vogt, T., Negative Thermal Expansion from 0.3 K to 1050 K in ZrW2O8, Science, 1996, vol. 272, pp. 90–92.
Evans, J.S.O., Hu, Z., Jorgensen, J.D., et al., Compressibility, Phase Transitions and Oxygen Migration in the Zirconium Tungstate Negative Thermal Expansion Material ZrW2O8, Science, 1997, vol. 275, pp. 61–65.
Thomas, M.F. and Stevens, R., Aluminium Titanate—A Literature Review: Part 1. Microcracking Phenomena, Trans. Br. Ceram. Soc., 1989, vol. 88, pp. 144–151.
Choosuwan, H., Guo, R., Bhalla, A.S., and Balachandran, U., Negative Thermal Expansion Behavior in Single Crystal and Ceramic of Nb2O5-Based Compositions, J. Appl. Phys., 2002, vol. 91, no. 8, pp. 5051–5054.
Hathaikarn, M., Electrical Properties of Niobium Based Oxides-Ceramics and Single Crystal Fibers Grown by the Laser-Heated Pedestal Growth (LHPG) Technique, PhD Thesis, Pennsylvania State Univ., 2003.
Manning, W.R., Hunter, O., Jr., Calderwood, F.W., and Stacy, D.W., Thermal Expansion of Nb2O5, J. Am. Ceram. Soc., 1972, vol. 55, no. 7, pp. 342–347.
Jijima, S., Direct Observation of Lattice Defects in H-Nb2O5 by High Resolution Electron Microscopy, Acta Crystallogr., Sect. A: Cryst. Phys., Diffr., Theor. Gen. Crystallogr., 1973, vol. 29, pp. 18–24.
Krzhizhanovskii, R.E. and Shtern, Z.Yu., Teplofizicheskie svoistva nemetallicheskikh materialov: Spravochnik (Thermophysical Properties of Nonmetallic Materials), Leningrad: Energiya, 1978.
Frolov, A.A., Palatnikov, M.N., and Balabanov, Yu.I., Advances in Ceramic Products with Protective Coatings for Thermochemical Processing of High-Purity Niobium and Tantalum Compounds, Nauka i razvitie tekhnobiosfery Zapolyar’ya: opyt i vyzov vremeni. Materialy mezhdunarodnoi konferentsii (Proc. Int. Conf. Science and Development of Technobiosphere in the Polar Areas: Experience and Challenges), Apatity, 2005, pp. 131–133.
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Original Russian Text © M.N. Palatnikov, O.B. Shcherbina, A.A. Frolov, V.N. Pavlikov, M.V. Karpets, O.V. Makarova, N.V. Sidorov, V.T. Kalinnikov, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 6, pp. 761–768.
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Palatnikov, M.N., Shcherbina, O.B., Frolov, A.A. et al. Effect of high-intensity light on the micro- and nanostructuring and thermal expansion of Ta2O5 and Nb2O5 ceramics. Inorg Mater 46, 683–690 (2010). https://doi.org/10.1134/S002016851006021X
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DOI: https://doi.org/10.1134/S002016851006021X