Zobrazeno 1 - 10
of 46
pro vyhledávání: '"M.C. Hash"'
Autor:
M.C. Hash, Robert J. Finch, Allen J. Bakel, D. B. Chamberlain, Jeffrey A. Fortner, Arthur Jeremy Kropf
Publikováno v:
Journal of Nuclear Materials. 304:56-62
We report X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine-structure (EXAFS) spectra for the plutonium LIII and uranium LIII edges in titanate pyrochlore ceramic. The titanate ceramics studied are of the type proposed t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6e7d9286493c3d92c0949f84c0dc148
https://doi.org/10.1016/s0022-3115(02)00870-x
https://doi.org/10.1016/s0022-3115(02)00870-x
Publikováno v:
Physica C: Superconductivity. 270:114-128
Electromotive-force (EMF) measurements of oxygen fugacities as a function of stoichiometry have been made on lead-doped and lead-free Bi2−zPbzSr2Ca1Cu2Ox superconducting ceramics in the temperature range ≈ 700–815°C by means of an oxygen-titra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5661d6689d95413113b61b8fcb67a9b
https://doi.org/10.1016/0921-4534(96)00454-6
https://doi.org/10.1016/0921-4534(96)00454-6
Publikováno v:
Physica C: Superconductivity. 249:396-402
Electromotive-force (EMF) measurements of oxygen fugacities as a function of stoichiometry have been made in the lead-doped Bi-2223 superconducting system in the temperature range 700–815°C by means of an oxygen titration technique that employs an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4564d7bfc9f93d0b20aa3eef8505cb23
https://doi.org/10.1016/0921-4534(95)00299-5
https://doi.org/10.1016/0921-4534(95)00299-5
Autor:
Ira Bloom, D.Y. Kaufman, Michael T. Lanagan, M.R. DeGuire, J.T. Dawley, Roger B. Poeppel, M.C. Hash, Nan Chen, Stephen E. Dorris
Publikováno v:
Applied Superconductivity. 1:81-91
Agclad tapes of Bi 1.8 Pb 0.4 Sr 2 Ca 2 Cu 3 O x annotated as 2223, were fabricated from polyphase powders which reactively sinter in situ to form 2223, and from completely reacted 2223. Annealing temperatures, as well as mechanical processing scheme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::860ad8491165e14de453ff8f23df35b7
https://doi.org/10.1016/0964-1807(93)90384-e
https://doi.org/10.1016/0964-1807(93)90384-e
Publikováno v:
Solid State Ionics. :739-747
Novel compounds in the Bi-Al-O and La-Bi-Al-O systems were prepared and tested for conductivity at high temperatures (500–800°C) in an oxygen gradient cell. The purpose is to develop an electrolyte material that will permit operation of a solid ox
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db81c3174e128a79cc2752e23cfc3d9a
https://doi.org/10.1016/0167-2738(92)90249-o
https://doi.org/10.1016/0167-2738(92)90249-o
Publikováno v:
Materials Research Bulletin. 26:1269-1276
The high-temperature superconducting material Bi 2 Sr 2 CaCu 2 O x (2212) was synthesized by reaction of oxides and carbonates. Several stoichiometries and a range of temperatures and oxygen partial pressures were investigated for the production of p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eb02b8dbdb51a5c48f67b6fb7145fce
https://doi.org/10.1016/0025-5408(91)90141-8
https://doi.org/10.1016/0025-5408(91)90141-8
Publikováno v:
Materials Letters. 10:105-108
A composite glass/ceramic is being developed for use in a sodium-based cell. Numerous ceramics in the high-MgO portion of the MgO-Al2O3-BaO, CaO-B2O3 system were studied to determine whether the thermal expansion behavior matched that of a highly con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16f7073b034f65e6f677bd4600c63718
https://doi.org/10.1016/0167-577x(90)90040-s
https://doi.org/10.1016/0167-577x(90)90040-s
Publikováno v:
Materials Research Bulletin. 25:791-798
Starting compositions of Tl 2 Ca 2 Ba 2 Cu 3 O x , TlCa 2 Ba 2 Cu 3 O x , and TlCa 3 BaCu 3 O x were used to synthesize TlCaBaCuO superconductors. The atmosphere was pure oxygen of pressure 10 5 to 6 × 10 5 Pa, and the temperature range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1d819f69358c024519f45b44333c621
https://doi.org/10.1016/0025-5408(90)90208-j
https://doi.org/10.1016/0025-5408(90)90208-j
Autor:
O. D. Lacy, K.C. Goretta, Donglu Shi, Jun Chen, M.C. Hash, F.A. Karbarz, Ming Xu, U. Balachandran
Publikováno v:
Materials Research Bulletin. 25:251-256
Synthesis of the compound Bi 2 Sr 2-y CaCu 2 O x , 0≤y≤0.5, was attempted from 10 4 to 10 6 Pa oxygen pressure. Lower pressures and temperatures less than 800°C proved most effective in forming the 85-K superconducting material. A Sr-deficient s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9891fc071bdda12b7ef7760ae613dd81
https://doi.org/10.1016/0025-5408(90)90052-4
https://doi.org/10.1016/0025-5408(90)90052-4
Publikováno v:
Proceedings of the 25th Intersociety Energy Conversion Engineering Conference.
Rapid progress is being made in the development of a bipolar Li- alloy/FeS {sub 2} battery with molten LiCl-LiBr-KBr electrolyte and MgO powder separator. Such a battery would be operated at 400- 425{degree}C and is expected to attain high performanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c69fc4874051c960a1ff56005b94f3e
https://doi.org/10.1109/iecec.1990.716310
https://doi.org/10.1109/iecec.1990.716310