Thermal Expansion Behavior of Solid Solution Y1.9R0.1Mo4O15 (R = Sm, Nd, Dy)


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Several rare earth solid solutions of Y1.9R0.1Mo4O15 (R=Sm, Nd, Dy) with interesting thermal expansion behavior were prepared and studied by X-ray and neutron diffraction. These solid solutions crystallize in a monoclinic space group P21/c. The lattice parameters a, b and c of Y1.9R0.1Mo4O15 increase with increasing of the ionic radius of substituted elementary. The high-temperature XRD data for Y1.9Sm0.1Mo4O15 show that there is an unusual low thermal expansion behavior in the 25~100°C range followed by a normal thermal expansion at higher temperature up to 600°C. Since no phase transition was observed, the temperature dependence of Mo2-O14 bond distance seems to be responsible for the anomalous thermal behavior.



Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong




H. Wang et al., "Thermal Expansion Behavior of Solid Solution Y1.9R0.1Mo4O15 (R = Sm, Nd, Dy)", Key Engineering Materials, Vols. 336-338, pp. 2328-2330, 2007

Online since:

April 2007




[1] Z. Hu, J. D. Jorgensen, S. Teslic, et al.: Physica B Vol. 241-243(1998), p.370.

[2] C. A. Perottoni and J. A. H. de Jornada: Science Vol. 280 (1998), p.886.

[3] T. A. Mary, J. S. O. Evans, T. Vogt, A. W. Sleight: Science Vol. 272 (1996), p.90.

[4] J. S. O. Evans, Z. Hu, J. D. Jorgensen, et al.: Science Vol. 275 (1997), p.61.

[5] J. S. O. Evans, T. A. Mary, T. Vogt, et al.: Chem. Mater. Vol. 8 (1996), p.2809.

[6] A. W. Sleight: Inorg. Chem. Vol. 37 (1998), p.2854.

[7] L. Sebastian, S. Sumithra, J. Manjanna, et al.: Mat. Sci. Eng. B Solid Vol. 103 (2003), p.289.

[8] H. Naruke, T. Yamase: J. Solid State Chem. Vol. 173 (2003), p.407.

[9] F. Dubois, F. Goutenoire, Y. Laligant, et al.: J. Solid State Chem. Vol. 159 (2001), p.228.

[10] Fullprof 2000 (Version July2001); Juan Rodríguez-Carvajal; Laboratoire Léon Brillouin (CEA-CNRS); CEA/Saclay, 91191 Gif sur Yvette Cedex, FRANCE.

[11] Gsas software; A. C. Larson and R. B. Von Dreele; Manuel Lujan, Jr. Neutron Scattering Center, MS-H805; Los Alamos National Laboratory, Los Alamos, NM 87545 ; Copyright, 2000, The Regents of the University of California.