Abstract
Single crystal synthesis, X-ray powder diffraction data, and electron microprobe data are given for some Na rare earth silicates of the types NaMSiO4, Na3MSi2O7, Na3MSi3O9, and Na5MSi4O12. NaYSiO4 is orthorhombic with SG Pbn21, a=5.132, b=11.156, anc c=6.405 Å. NaGdSiO4 is tetragonal with SG I4 or I \(\bar 4\) with a=11.743 and c=5.444 Å. A second form of NaGdSiO4 is orthorhombic with SG P21 nb or Pmmb, a=9.179, b=27.29, and c=5.472 Å. Na3YSi2O7 is hexagonal with a=9.416 and c=13.776 Å. Na3YSi3O9 is orthorhombic with a=15.215, b=15.126, and c=15.036 Å. Na ion conductivities of Na3YSi2O7 and Na3YSi3O9 at 300° C of 5×10−6 (Θ-cm)−1 and 6×10−6 (Θ-cm)−1, respectively, are substantially less than that for Na6YSi4O12, 1×10−1 (Θ-cm)−1.
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References
Avetisyan, E.I., Chicagov, A.V., Belov, N.V.: Crystal structure of sodium gadolinium orthosilicate (in English translation). Sov. Phys. Crystallogr. 15, 926–927 (1971)
Chenavas, J., Waintal, A., Capponi, J.J., Gondrand, M.: Etude sous haute pression et haute temperature des composes NaTGeO4 and NaTSiO4 (T=terres rares+yttrium). Mater. Res. Bull. 4, 425–432 (1969)
Chicagov, A.V., Belov, N.V., Crystal structure of NaNdSiO4. Geochem. Int. 5, 1183 (1968)
Chicagov, A.V., Litvin, B.N., Belov, N.V.: Synthesis in the Na2O-RE2O3-SiO2-H2O system. Geochem. Int. 9, 858–865 (1968)
Chicagov, A.V., Litvin, B.N., Belov, N.V.: Synthetic series of sodium rare earth silicates and germanates (in English translation). Sov. Phys. Crystallogr. 14, 95–98 (1969)
Felsche, J.: The crystal chemistry of the rare earth silicates. Struct. Bonding (Berlin) 13, 99–197 (1973)
Gunawardane, R.D., Glasser, F.P.: Crystal chemistry and synthesis of ternary silicates and germanates containing alkali (Na+, K+) and alkaline earth (Ca2+, Sr2+, Ba2+) cations. Z. Anorg. Allg. Chem. 411, 163–171 (1975)
Maksimov, E.A., Ilyukhin, V.V., Belov, N.V.: Crystal structure of the Na-Y orthosilicate NaYSiO4 (in English translation). Sov. Phys. Crystallogr. 11, 383–584 (1967)
Maksimov, B.A., Kharitonov, Y.A., Belov, N.Y.: Crystal structure of the Na-Y meta-silicate Na5Y-Si4O12 (in English translation). Sov. Phys. Dokl. 18, 763–765 (1974)
Maksimov, B.A., Litvin, B.N., Ilyukhin, V.V., Belov, N.V.: Hydrothermal crystallization in the A2O-TR2O3-SiO2-H2O system (in English translation). Sov. Phys. Crystallogr. 14, 447–448 (1969)
Mondal, P., Jeffery, J.W.: The crystal structure of tricalcium aluminate, Ca3Al2O6. Acta Crystallogr. Sect. B:31, 689–697 (1975)
Perry, S.K., Kurtz, T.T.: A powder technique for the evaluation of nonlinear optical materials. J. Appl. Phys. 39, 3798–3813 (1968)
Shannon, R.D., Berzins, T.: Ionic conductivity in low carnegieite compositions based on NaAlSiO4. Mater. Res. Bull. 14, 361–367 (1979)
Shannon, R.D., Taylor, B.E., Gier, T.E., Chen, H.-Y., Berzins, T.: Ionic conductivity in Na5Y-Si4O12-Type silicates. Inorg. Chem. 17, 958–964 (1978)
Simonov, M.A., Egorov-Tismenko, J.K., Belov, N.V.: Crystal structure of Na-Cd silicate, Na2CdSi2O6 (in English translation). Sov. Phys. Dokl. 12, 662–664 (1967)
Skshat, S.M., Simonov, V.I., Belov, N.V.: Crystal structure of the synthetic sodium scandium silicate-Na3ScSi2O7 (in English translation). Sov. Phys. Dokl. 14, 9–11 (1969)
Voronkov, A.A., Sizova, R.G., Ilyukhin, V.V., Belov, N.V.: Chemical crystallography of mixed anion frameworks. I. Zirconium and scandium alkali sorosilicates (in English translation). Sov. Phys. Crystallogr. 18, 67–72 (1973).
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Shannon, R.D., Gier, T.E., Foris, C.M. et al. Crystal data for some sodium rare earth silicates. Phys. Chem. Minerals 5, 245–253 (1980). https://doi.org/10.1007/BF00348573
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DOI: https://doi.org/10.1007/BF00348573