Zobrazeno 1 - 10
of 17
pro vyhledávání: '"L. Abdul Khalam"'
Vibrational Spectroscopy of Ca2LnTaO6 (Ln = lanthanides, Y, and In) and Ca2InNbO6 Double Perovskites
Autor:
Roberto L. Moreira, Marcio M. Lage, Anderson Dias, L. Abdul Khalam, Mailadil Thomas Sebastian
Publikováno v:
Chemistry of Materials. 23:14-20
Ca2LnTaO6 (Ln = lanthanides, Y, and In) and Ca2InNbO6 ceramics were prepared by the solid-state route, and their vibrational properties were investigated using Raman scattering and infrared spectroscopy. The correct crystal structure and phonon mode
Publikováno v:
Journal of the American Ceramic Society. 90:2476-2483
The Ca(B′1/2Ta1/2)O3 [B′=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Yb, and In] double perovskite-type ceramics have been prepared by the conventional solid-state ceramic route. The phase purity and surface morphology of the sintered ceramics hav
Publikováno v:
Journal of the American Ceramic Society. 90:1467-1474
The Ca(B′1/2Nb1/2)O3 [B′=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Yb, and In] complex perovskites have been prepared by conventional solid-state ceramic route. The structure and microstructure of the ceramics have been characterized by X-ray di
Publikováno v:
Journal of the European Ceramic Society. 27:2803-2809
Complex Ba(RE 1/2 Ta 1/2 )O 3 [RE = rare earth] ceramics have been prepared by solid state ceramic route and their microwave dielectric responses were measured in the GHz range. In general, the resonators showed high dielectric constants, high qualit
Publikováno v:
Journal of the American Ceramic Society. 89:3689-3695
The Sr(B′0.5Ta0.5)O3 ceramics where B′=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, and Yb have been prepared by the conventional solid-state ceramic route and their microwave dielectric properties have been investigated. The structure and microstr
Publikováno v:
International Journal of Applied Ceramic Technology. 3:364-374
St(B' 1/2 Nb 1/2 )O 3 [B' = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Yb, and In] ceramics were prepared by the conventional solid-state ceramic route. The crystal structure and microstructure of the ceramics were characterized by X-ray diffraction
Autor:
Roberto L. Moreira, Mailadil T. Sebastian, and Carlos William A. Paschoal, Anderson Dias, L. Abdul Khalam
Publikováno v:
Chemistry of Materials. 18:214-220
Raman spectroscopy was employed to evaluate the crystal structure and phonon modes of chemically substituted Ba(RE1/2Nb1/2)O3 microwave ceramics (RE = La, Nd, Sm, Gd, Tb, and Y). It was verified that these materials could be divided into tetragonal (
Autor:
Ravendran Ratheesh, Mailadil Thomas Sebastian, H. Sreemoolanathan, L Abdul Khalam, Pezholil Mohanan
Publikováno v:
Materials Science and Engineering: B. 107:264-270
Microwave dielectric resonators (DRs) based on Ba(B 1/2 ′Nb 1/2 )O 3 [B′=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y, Yb, and In] complex perovskites have been prepared by conventional solid state ceramic route. The dielectric properties (relative perm
Autor:
Roberto L. Moreira, Mailadil Thomas Sebastian, L. Abdul Khalam, Anderson Dias, Marcio M. Lage
Publikováno v:
ChemInform. 42
The correct structure and phonon modes for the title compounds are determined by XRD, Raman scattering, and IR spectroscopy.
Autor:
Roberto L. Moreira, Carlos William de Araujo Paschoal, Anderson Dias, L. Abdul Khalam, Mailadil Thomas Sebastian
Publikováno v:
ChemInform. 37