Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-10T07:48:03.536Z Has data issue: false hasContentIssue false
  • English
  • Français

A neutron diffraction study on ceria-neodia solid solutions

Published online by Cambridge University Press:  01 March 2012

Keka R. Chakraborty ,
P. S. R. Krishna ,
S. V. Chavan  and
A. K. Tyagi
Keka R. Chakraborty
Affiliation:
Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
P. S. R. Krishna
Affiliation:
Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
S. V. Chavan
Affiliation:
Applied Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
A. K. Tyagi*
Affiliation:
Applied Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
*
a)Electronic-mail: aktyagi@magnum.barc.ernet.in
Get access Rights & Permissions [Opens in a new window]

Abstract

Neutron diffraction studies were carried out to ascertain the structural details of the composition Ce0.5Nd0.5O1.750. The structure was unequivocally found to be that of C-type cubic. The refinement on an F-type cubic lattice was found to be unacceptable because of high R values. Selected bond distances are also being reported. In addition, the neutron diffraction studies on a typical defective F-type composition Ce0.75Nd0.25O1.875 were also carried out.

Keywords

cerianeutron diffractionsolid solutionsubstitution
Type
Technical Articles
Information
Powder Diffraction , Volume 21 , Issue 1 , March 2006 , pp. 36 - 39
Copyright
Copyright © Cambridge University Press 2006

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

Bevan, D. G. M., Barker, W. W, and Martin, R. L. (1965). “Mixed oxides of the type MO 2 (Fluorite) - M2O3. Part 2, Non - stoichiometry in ternary rare - earth oxide systems,” in Proceedings of the Fourth Conference on Rare Earths Research,Phoenix, Arizona (Gordon and Breach, New York), p.441.Google Scholar
Brauer, G., and Gradinger, H. (1954). “Uber hetrotype mischphasen bei seltenerdoxyden-I,” Z. Anorg. Allg. Chem. ZAACAB 10.1002/zaac.19542760502 276, 209.CrossRefGoogle Scholar
Chavan, S. V., Mathews, M. D., and Tyagi, A. K. (2005). “Phase relations and thermal expansion studies in the Ceria-Neodymia system,” Mater. Res. Bull. MRBUAC 40, 1558.CrossRefGoogle Scholar
Ganguly, C. (1989). “ThO 2 based fuels for PHWR’s: Fabrication, characterization and test irradiation,” Second International Conference on CANDU Fuel, Pembroke, Ontario, Canada, edited by Hasting, I. J., pp. 398–412.Google Scholar
Grover, V., Achary, S. N., and Tyagi, A. K. (2003). “Structural analysis of excess-anion C-type rare earth oxide: A case study with Gd 1−xCexO1.5+x∕2 (x=0.20 and 0.40),” J. Appl. Crystallogr. JACGAR 36, 1082.CrossRefGoogle Scholar
ICDD (1975). “Powder diffraction file,” International Centre for Diffraction Data, edited by McClune, Frank, 12 Campus Boulevard, Newtown Square, PA19073-3272.Google Scholar
Keler, E. K., Godina, N. A., and Kalinina, A. M. (1956). Russ. J. Inorg. Chem. RJICAQ 1, 127.Google Scholar
Kleykamp, H. (1985). “The chemical state of the fission products in oxide fuels,” J. Nucl. Mater. JNUMAM 131, 221.CrossRefGoogle Scholar
Lee, Y. W., Kim, H. S., Kim, S. H., Young, C. Y., Na, S. H., Ledergerber, G., Heimgarbner, P., Pouchon, M., and Burghartz, M. (1999). “Preparation of simulated inert matrix fuel with different powders by dry milling method,” J. Nucl. Mater. JNUMAM 274, 7.CrossRefGoogle Scholar
Logothetis, E. M. (1976). “12th State of-the-Art symposium on ceramics in service of Men,” Washington, D.C.Google Scholar
Maki, Y., Matsuda, M., and Kudo, T. (1971). “Solid electrolyte fuel cell,” US Patent 3, 607, 424.Google Scholar
Rodriguez-Carvajal, J. (1993). “Recent advances in magnetic structure determination by neutron powder diffraction,” Physica B PHYBE3 10.1016/0921-4526(93)90108-I 192, 55.CrossRefGoogle Scholar