Abstract
Fine yttrium carbonate (hydrate and hydroxide) powders were prepared by hydrothermal precipitation from the mixed solution of yttrium chloride and urea. The mixed solutions were treated under various hydrothermal conditions in a zirconium-lined autoclave. Under the hydrothermal condition, urea acts as a precipitation agent dy decomposing into CO2 and NH3.
The products were washed with distilled water and ethanol by centrifugation to remove Cl- and NH4 + ions. The products obtained were crystalline yttrium carbonate powders involved water. The water content were depended on the hydrothermal temperatures. Some unknown phases were obtained by hydrothermal precipitation at 220°C.
Observation under SEM indicated that the plate-like or foliated powders. The particle morphology was depended on the hydrothermal conditions. The crystalline yttrium carbonate was transformed to amorphous by calcination at 500°C and yttrium oxide above 700°C.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
M. K. Wu, J. R. Ashburn, C. J. Torng, P. H. Hor, R. L. Meng, L. Cao, Z. J. Huang, Y. Q. Wang and C. W. Chu: “Super¬conductivity at 93 K in a New Mixed-Phase Y-Ba-Cu-0 Compound System at Ambient Pressure”, Physical Review Letters, 58, 9, 903–910 (1987).
V. Perttunen: “Lokkaite, A New Hydrous Re-Carbonate from Pyoronmaa Pegmatite in Kangasala, SW-Finland”, Bull. Geol. Soc. Finland, 43, 67–72 (1971).
J. A. K. Tareen, M. N. Viswanathiah and K. V. Krishnamurthy: “Hydrothermal synthsis and Growth of Y(OH)CO3-Ancylite Like Phase”, Revue de Chimie Minerale, t. 17, 50–57 (1980).
K. Nagashima and H. Wakita: “Composition of Tengerite”, Bull Chem. Soc. Japan, 856–859 (1968).
G. W. Beall, W. O. Milligan and Stanley Mroczkowski: “Yttrium Carbonate Hydroxide”, Acta Cryst., B32, 3143–3152 (1976).
S. Sōmiya, M. Yoshimura, Z. Nakai, K. Hishinuma and T. Kumaki: “Hydrothermal Processing of Ultrafine Single-Crystal Zirconia and Hafnia Powders with Homogeneous Dopants”, pp.43–55 in Advances in Ceramics, Vol. 21, Edited by G. L. Messing, K. S. Mazdiyasni, J. W. McCauley and R. A. Haber, The American Ceramic Society, inc., 1987.
K. Hishinuma, T. Kumaki, Z. Nakai, M. Yoshimura and S. Somiya “Characterization of Y2O3-ZrO2 Powders Synthesized under Hydrothermal Conditions”, pp.201–209 in Advances in Ceramics, Vol. 24, Edited by S. Somiya, N. Yamamoto and H. Yanagida, The American Ceramic Soc. Inc., 1988.
J. A. K. Tareen, T. R. Narayanan Kutty and K. V. Krishnamurty: “Hydrothermal Growth of Y2(CO3) nH2O (Tengerite) Single Crystals”, J. Cryst. Growth, 49, 761–765 (1980).
B. H. T. Chai and S. Morczkwski: “Synthesis of Rere-Earth Carbonates under Hydrothermal Conditions”, J. Cryst. Growth, 44, 84–89 (1978).
L. M. D’assuncao, I. Giolito and M. Ionashiro: “Thermal Decomposition of The Hydrated Basic Carbonate of Lanthanides and Yttrium”, Thermochimica Acta, 137, 319–330 (1989).
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1990 Elsevier Science Publishers Ltd.
About this chapter
Cite this chapter
Hishinuma, K., Kumaki, T., Nakai, Z., Akiba, T., Suwa, Y., Sōmiya, S. (1990). Preparation of Yttrium Carbonate by Hydrothermal Precipitation Method. In: Sōmiya, S., Doyama, M., Hasegawa, M., Agata, Y. (eds) Transactions of the Materials Research Society of Japan. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0789-8_28
Download citation
DOI: https://doi.org/10.1007/978-94-009-0789-8_28
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6842-0
Online ISBN: 978-94-009-0789-8
eBook Packages: Springer Book Archive