Effect of the processing prameters on the crystalline structure of lanthanide orthotantalates

Materials Research

Volumn 17, Issue , 2014, Pages 167-173

  Siqueira, Kisla P F ^a   Dias, Anderson ^a  

^a FEDERAL UNIVERSITY OF OURO PRETO   (Brazil)

Author keywords

Crystal structure; Lanthanide orthotantalates; Raman spectroscopy; Solid state processing

Indexed keywords

DYSPROSIUM COMPOUNDS; IODINE COMPOUNDS; NANOCRYSTALLINE MATERIALS; NEODYMIUM COMPOUNDS; PHOSPHORUS COMPOUNDS; RAMAN SPECTROSCOPY; RARE EARTH ELEMENTS; SOLID STATE REACTIONS; TANTALUM COMPOUNDS;

CRYSTALLINE ARRANGEMENT; CRYSTALLINE STRUCTURE; POWDER MATERIAL; RAMAN SCATTERING MEASUREMENTS; SOLID STATE REACTION ROUTE; SOLID-STATE PROCESSING; SYNTHESIS PARAMETERS; THERMAL EVOLUTION;

CRYSTAL STRUCTURE;

EID: 84908126485     PISSN: 15161439     EISSN: 19805373     Source Type: Journal    
DOI: 10.1590/S1516-14392013005000189     Document Type: Article

References (24)

1. 2 (= vacancy; Ln = La-Sm). Chemistry of Materials. 2009; 21(11):2201-2208. http://dx.doi.org/10.1021/cm9001509
2. 7 (R = Y, Yb, Gd, La): Effect of crystal structure on photocatalytic activity. Journal of Physical Chemistry B. 2004; 108(3):811-814. http://dx.doi.org/10.1021/jp036300v
3. 7 (Ln = La, Pr, Nd and Sm). Chemistry of Materials. 2000; 12(3):812-817. http://dx.doi.org/10.1021/cm990577j
4. 4 with M and M' type structure under UV-VUV excitation. Journal of Luminescence. 2010; 130(11):2089-2092. http://dx.doi.org/10.1016/j.jlumin.2010.05.032
5. 4 with M type and M' type structures. Journal of Materials Science. 2000; 35(5):1139-1143. http://dx.doi.org/10.1023/A:1004767916006
6. 4 scintillation single crystals. IEEE Tansactions on Nuclear Science. 2010; 57(3):1287-1290. http://dx.doi.org/10.1109/TNS.2009.2037320
7. 3+ phosphors. Materials Chemistry and Physics. 2010; 119(1-2):48-51. http://dx.doi.org/10.1016/j.matchemphys.2009.07.038
8. Forbes TZ, Nyman M, Rodriguez MA and Navrotsky A. The energetics of lanthanum tantalate materials. Journal of Solid State Chemistry. 2010; 183(11):2516-2521. http://dx.doi.org/10.1016/j.jssc.2010.08.024
9. Haugsrud R and Norby T. Proton conduction in rare-earth ortho-niobates and ortho-tantalates. Nature Materials. 2006; 5(3):193-196. http://dx.doi.org/10.1038/nmat1591
10. 4. Journal of Alloys and Compounds. 2000; 311(2):252-255. http://dx.doi.org/10.1016/S0925-8388(00)01043-4
11. 4. Journal of Solid State Chemistry. 1980; 35(2):167-175. http://dx.doi.org/10.1016/0022-4596(80)90489-2
12. 4 at 300°C by neutron powder profile analysis. Journal of Solid State Chemistry. 1981; 36(2):139-147. http://dx.doi.org/10.1016/0022-4596(81)90149-3
13. 4 (M = La-Nd, Sm-Lu). Zeitschrift fur anorganische und allgemeine Chemie. 2005; 631(12):2377-2382. http://dx.doi.org/10.1002/zaac.200500278
14. Siqueira KPF, Carvalho GB and Dias A. Influence of processing conditions and chemical environmental on the crystal structures and phonon modes of lanthanide orthotantalates. Dalton Transactions. 2011; 40(37):9454-9460. http://dx.doi.org/10.1039/c1dt10783f
15. 4 and crystal structures of its modifications. Journal of Alloys and Compounds. 2002; 346(1-2):263-268. http://dx.doi.org/10.1016/S0925-8388(02)00504-2
16. Molchanov VV, Zuev MG, Plyasova LM and Bogdanov SV. Mechanochemical synthesis of yttrium and lanthanum tantalates. Inorganic Materials. 2004; 40(1):73-79. http://dx.doi.org/10.1023/B:INMA.0000012182.99092.6b
17. Hristea A, Popovici E-J, Muresan L, Stefan M, Grecu R, Johansson A et al. Morpho-structural and luminescent investigations of niobium activated yttrium tantalate powders. Journal of Alloys and Compounds. 2009; 471(1-2):524-529. http://dx.doi.org/10.1016/j.jallcom.2008.04.009
18. Hayes W and Loudon R. Scattering of Light by Crystals. New York: Wiley; 1978.
19. Mather SA and Davies PK. Nonequilibrium phase formation in oxides prepared at low temperature: Fergusonite-related phases. Journal of the American Ceramic Society. 1995; 78(10):2737- 2745. http://dx.doi.org/10.1111/j.1151-2916.1995.tb08049.x
20. 7 (RE = rare earths). Journal of Physics-Condensed Matter. 2004; 16(23):4103-4120.
21. 4 synthesized by sol-gel process. Journal of Luminescence. 2007; 126(2):866- 870. http://dx.doi.org/10.1088/0953-8984/16/23/025
22. 3 addition on the phase transition and growth of YSZ nanocrystallites prepared by sol-gel process. Journal of Non-Crystalline Solids. 2005; 351(4):304-311. http://dx.doi.org/10.1016/j.jnoncrysol.2004.11.002
23. Rousseau DL, Bauman RP and Porto SPS. Normal mode determination in crystals. Journal of Raman Spectroscopy. 1981; 10(1):253-290. http://dx.doi.org/10.1002/jrs.1250100152
24. Shannon RD. Revised effective ionic-radii and systematic studies of interatomic distantances in halide and chalcogenides. Acta Crystallographica Section A. 1976; 32(1):751-767. http://dx.doi.org/10.1107/S0567739476001551