Zobrazeno 1 - 10
of 25
pro vyhledávání: '"R. B. Poeppel"'
Autor:
C.A. Udovich, S. Pei, R. B. Poeppel, B. Dabrowski, U. Balachandran, J. Faber, M.S. Kleefisch, V. Zhang-McCoy, R.L. Mieville, T.P. Kobylinski
Publikováno v:
Catalysis Letters. 30:201-212
In the course of generating synthesis gas (H2, CO) from methane, we have observed two types of fractures occurring on the Sr(Co, Fe)Ox-type oxygen membrane reactors. The first type occurred shortly after the reaction started and the second type often
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::992ba6154b614f1332e21548383c8d19
https://doi.org/10.1007/bf00813686
https://doi.org/10.1007/bf00813686
Publikováno v:
Superconductor Science and Technology. 6:421-428
The effects of thermomechanical treatment, starting composition, and Ag addition on microstructure and corresponding critical current density (Jc) of Ag sheathed Bi1.8Pb0.4Sr2Ca2.2Cu3Ox (BSCCO) superconductor tapes made by a powder-in-tube technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a099466433c8515b3c51fc762c6e29e
https://doi.org/10.1088/0953-2048/6/6/006
https://doi.org/10.1088/0953-2048/6/6/006
Publikováno v:
Journal of Materials Science. 28:3589-3593
A connected-grain model developed earlier to study the modulus of elasticity as a power-law of density was extended to study the dependence of the flexural strength of polycrystalline ceramics on porosity. Relations were derived for specific surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c5b0f3802a7ad6f9262befec04e1194
https://doi.org/10.1007/bf01159841
https://doi.org/10.1007/bf01159841
Publikováno v:
Superconductor Science and Technology. 4:337-342
YBa2Cu3O7- delta (YBCO) superconducting films on polycrystalline silver substrates have been fabricated using a sol-gel/spray pyrolysis method. The sol-gel precursor is composed of yttrium, barium and copper acetates that are dissolved in a minimum a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cbb45d1b7e31e583d1f4888bc0b43b1
https://doi.org/10.1088/0953-2048/4/8/003
https://doi.org/10.1088/0953-2048/4/8/003
Publikováno v:
Journal of Materials Science. 26:3862-3868
A dependence of Young's modulus of elasticity on open porosity in ceramics is derived from an open-porosity model, which in the literature, is applied to salinity conductivity and fluid permeability in rocks. A random distribution of grain and pore s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c8ecf4f9046cd227ce4029a3505fa38
https://doi.org/10.1007/bf01184983
https://doi.org/10.1007/bf01184983
Autor:
S. K. Singh, Uthamalingam Balachandran, J. L. Wu, Jitendra P. Singh, P. W. Eckels, C. A. Youngdahl, J.T. Dederer, R. B. Poeppel, J.R. Hull, Michael T. Lanagan
Publikováno v:
IEEE Transactions on Magnetics. 27:1861-1865
The high critical temperature and low thermal conductivity of the ceramic superconductor Y-Ba-Cu-O were utilized to reduce the Joule heating and the heat leak in a vapor-cooled current lead design of nominally 1-kA capacity. The lead consists of a lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abef4c14302a8b3c02e9c770dbe61fc5
https://doi.org/10.1109/20.133559
https://doi.org/10.1109/20.133559
Autor:
W. J. Shack, R. B. Poeppel
The Energy Technology (ET) Division provides materials and engineering technology support to a wide range of programs important to the US Department of Energy (DOE). The Division's capabilities are generally applied to technical issues associated wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b68e01b3c4d07752339e9b33e9e1e48
https://doi.org/10.2172/834708
https://doi.org/10.2172/834708
Autor:
J. Kerr, W. A. Ferrando, R. B. Poeppel, P. W. Hesse, U. Balachandran, S. D. Karmarkar, A. P. Divecha
Publikováno v:
Physics and Materials Science of High Temperature Superconductors, II ISBN: 9789401050869
The properties of ceramic superconductors are greatly influenced by the temperature, heating rate, pressure, and gas atmosphere used during processing and fabrication. For example, transport critical current density decreases drastically when trace a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95d43bce94b4c029d8fbb22c9b488b96
https://doi.org/10.1007/978-94-011-2462-1_48
https://doi.org/10.1007/978-94-011-2462-1_48
The effects of hydrostatic pressure and temperature have been measured on the velocities of longitudinal and shear ultrasonic waves propagated in a very dense (96% of theoretical density) ceramic specimen of YBa{sub 2}Cu{sub 3}O{sub 7{minus}x}. In YB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::feee188726c6dca04ce540230385059f
https://doi.org/10.2172/142530
https://doi.org/10.2172/142530