Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Boris Paretzkin"'
Publikováno v:
Journal of the American Ceramic Society. 77:2354-2362
Crystal chemistry and subsolidus phase equilibrium studies of the Ba-Nd-Cu-O system near the CuO and Nd2O3 corners have been carried cut at 950°C in air. Two solid-solution series have been identified in the Ba-Nd-Cu-O system. The first series invol
Autor:
Raghu N. Kacker, W. Wong-Ng, C. K. Chiang, Boris Paretzkin, John E. Blendell, Eric S. Lagergren, Michael D. Hill, Edwin R. Fuller
Publikováno v:
Journal of the American Ceramic Society. 75:2390-2394
This paper reports the superconducting properties of a solid-solution region in the Ba-Y-Gd-Cu-O system were investigated as a function of composition. Phase relations, the peritectic decomposition temperature, the superconducting onset temperature (
Publikováno v:
Journal of Solid State Chemistry. 85:117-132
In theBaO(BaCO3) R2O3 CuOsystems, whereR =lanthanidesand yttrium, general trends of phase formation, solid solution formation, and phase relationships are correlated with the ionic size ofR.In air at 950°C the phase relationships in the CuO-rich reg
Publikováno v:
Powder Diffraction. 5:27-32
The superconductor related phases Ba3R3Cu6O14+x(or Ba2−zR1+zCu3O7+x, with z=0.5), where R = Pr, Nd, Sm, and Eu, have been prepared and characterized by X-ray powder diffraction, ac magnetic susceptibility measurement, resistivity measurement and th
Autor:
Boris Paretzkin, Winnie Wong-Ng
Publikováno v:
Powder Diffraction. 6:187-189
The compounds BaR2O4, where R = La, Nd, Sm, Gd, Eu, Dy, Ho and Er have been prepared from a stoichiometric mixture of BaCO3 and lanthanide oxides, and characterized by X-ray powder diffraction. Standard X-ray patterns of these phases were prepared. I
Publikováno v:
Advances in X-Ray Analysis ISBN: 9781461399988
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb3e5519cba44fa9ccdf08ef11aa8944
https://doi.org/10.1007/978-1-4613-9996-4_51
https://doi.org/10.1007/978-1-4613-9996-4_51
Autor:
Winnie Wong-Ng, Howard F. McMurdie, Boris Paretzkin, Camden R. Hubbard, Alan L. Dragoo, James M. Stewart
Publikováno v:
Powder Diffraction. 2:106-117
The following fifteen reference patterns of boride, silicide and oxide ceramics represent the first group of ceramic phases measured at the National Bureau of Standards under the project “High Quality Reference Patterns and Total Digital Powder Pat
Autor:
Boris Paretzkin, Eloise H. Evans, Howard F. McMurdie, Camden R. Hubbard, Winnie Wong-Ng, Marlene C. Morris
Publikováno v:
Powder Diffraction. 1:40-43
Patterns useful for identification are obtained by automated diffractometer methods. The lattice constants from the experimental work are refined by least-squares methods; reflections are assigned hkℓ indices consistent with space group extinctions
Autor:
Yuming Zhang, Boris Paretzkin, Katherine L. Davis, James M. Stewart, Camden R. Hubbard, Alan L. Dragoo, Winnie Wong-Ng, Howard F. McMurdie
Publikováno v:
Powder Diffraction. 2:257-265
Fifteen reference patterns of boride, silicide, selenide, telluride and oxide ceramics are reported. Included in the 15 reference patterns are data for three oxide phases which are related to high critical temperature (Tc) superconducting materials:
Publikováno v:
Powder Diffraction. 3:179-187
The following fourteen reference patterns of boride, telluride, and oxide ceramics are reported. Included in the fourteen reference patterns are data for six high Tc superconducting oxide and related phases (Ba2CaCu2TI2O8, BaCuEu2O5, BaCuTm2O5, BaCuD