Influence of Processing Conditions on the Formation of Y2Ti2O7 and YTiO3 Phases

被引：3
作者：
Gill, Jasmeet Kaur [1 ]
Pandey, O. P. [1 ]
Singh, K. [1 ]
机构：
[1] Thapar Univ, Sch Phys & Mat Sci, Patiala 147004, Punjab, India
来源：
TRANSACTIONS OF THE INDIAN CERAMIC SOCIETY | 2011年 / 70卷 / 04期
关键词：
Pyrochlore; Perovskite; Processing conditions; SEM; Thermal properties; FACETING BEHAVIOR; PEROVSKITE; OXIDE; PYROCHLORE;
D O I：
10.1080/0371750X.2011.10600172
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the present study, the mechanisms for transformation of pyrochlore to perovskite phase (YTiO3), keeping the same initial ingredients and amount of Y2O3 and TiO2, are proposed. The formation of both the phases is correlated using X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The microstructure of the sample was examined by scanning electron microscope (SEM). Energy dispersive X-ray spectroscopic (EDX) analysis was carried out to check the stoichiometry of the sample. In addition to this, the morphological behaviour, particularly of YTiO3 phase, is studied so that the formation of both the phases can be correlated to understand the morphology dependent properties of the perovskites and pyrochlore structured materials. The results are discussed in light of disordering caused due to interface controlled growth and reduction of Ti using various characterization techniques.
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页码：221 / 226
页数：6
相关论文
共 28 条
  • [1] Crystallographic features of RTiO3 (R: rare-earth ion)
    Arao, M
    Koyama, Y
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 392 : 300 - 305
  • [2] MODEL FOR SOLUTE REDISTRIBUTION DURING RAPID SOLIDIFICATION
    AZIZ, MJ
    [J]. JOURNAL OF APPLIED PHYSICS, 1982, 53 (02) : 1158 - 1168
  • [3] Muon spin relaxation study of LaTiO3 and YTiO3
    Baker, P. J.
    Lancaster, T.
    Blundell, S. J.
    Hayes, W.
    Pratt, F. L.
    Itoh, M.
    Kuroiwa, S.
    Akimitsu, J.
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (46)
  • [4] Development of anode material based on La-substituted SrTiO3 perovskites doped with manganese and/or gallium for SOFC
    Escudero, M. J.
    Irvine, J. T. S.
    Daza, L.
    [J]. JOURNAL OF POWER SOURCES, 2009, 192 (01) : 43 - 50
  • [5] Mott-Hubbard exciton in the optical conductivity of YTiO3 and SmTiO3
    Goessling, A.
    Schmitz, R.
    Roth, H.
    Haverkort, M. W.
    Lorenz, T.
    Mydosh, J. A.
    Mueller-Hartmann, E.
    Grueninger, M.
    [J]. PHYSICAL REVIEW B, 2008, 78 (07)
  • [6] Phase equilibria of the TiO2-Y2O3 system
    Gong, Weiping
    Li, Dajian
    Chen, Zhongshen
    Zheng, Feng
    Liu, Yong
    Du, Yong
    Huang, Baiyun
    [J]. CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2009, 33 (03): : 624 - 627
  • [7] THE RARE EARTH-TITANIUM(III) PEROVSKITE OXIDES - AN ISOSTRUCTURAL SERIES WITH A REMARKABLE VARIATION IN PHYSICAL-PROPERTIES
    GREEDAN, JE
    [J]. JOURNAL OF THE LESS-COMMON METALS, 1985, 111 (1-2): : 335 - 345
  • [8] Jackson K.A., 1958, LIQUID METALS SOLIDI, P174
  • [9] Ferromagnetism and lattice distortions in the perovskite YTiO3
    Knafo, W.
    Meingast, C.
    Boris, A. V.
    Popovich, P.
    Kovaleva, N. N.
    Yordanov, P.
    Maljuk, A.
    Kremer, R. K.
    Loehneysen, H. V.
    Keimer, B.
    [J]. PHYSICAL REVIEW B, 2009, 79 (05):
  • [10] Optical response of ferromagnetic YTiO3 studied by spectral ellipsometry
    Kovaleva, N. N.
    Boris, A. V.
    Yordanov, P.
    Maljuk, A.
    Bruecher, E.
    Strempfer, J.
    Konuma, M.
    Zegkinoglou, I.
    Bernhard, C.
    Stoneham, A. M.
    Keimer, B.
    [J]. PHYSICAL REVIEW B, 2007, 76 (15)
123