Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Thomas A. Sandenaw"'
Publikováno v:
Journal of Nuclear Materials. 195:312-316
The magnetic susceptibility of two samples of plutonium, one highly oriented and the other randomly oriented, were measured on heating between 300 and 850 K. The susceptibilities of the alpha, beta, gamma, delta, delta-prime, and epsilon phases were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbc745c5115fff2b49ed4bedf8bf0482
https://doi.org/10.1016/0022-3115(92)90522-m
https://doi.org/10.1016/0022-3115(92)90522-m
Autor:
Thomas A. Sandenaw
Publikováno v:
Journal of Nuclear Materials. 189:343-352
References are reviewed which indicate that there are electronic changes in α-phase Pu at several temperatures below ambient. A published theory suggests that periodic lattice distortions (PLDs) can serve the purpose of promoting electrons into hole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4591612f8474991e15299f824098d364
https://doi.org/10.1016/0022-3115(92)90387-z
https://doi.org/10.1016/0022-3115(92)90387-z
Autor:
James F. Andrew, Thomas A. Sandenaw
Publikováno v:
Journal of Nuclear Materials. 173:59-70
Hysteresis loops in electrical resistivity and elongation measurements made on plutonium (Pu) metal suggest that the α ah β and γ ah δ phase transformation are martensitic. The differing loops in different temperature ranges hint that the electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16b115f7fad1d29d6ba7cffc1071ea36
https://doi.org/10.1016/0022-3115(90)90312-b
https://doi.org/10.1016/0022-3115(90)90312-b
Autor:
Thomas A. Sandenaw
Publikováno v:
Journal of Alloys and Compounds. :363-365
The twinning systems of alpha phase Pu metal have been reported by Zocco et al. (Proc. XII Int. Congr. for Electron Micros., 1990, p. 1014). Twinning modes and charge-density wave (CDW) states have both been reported for the CDW materials 2HTaSe2 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0193c28020ac6233808e947360e1ef78
https://doi.org/10.1016/0925-8388(94)90932-6
https://doi.org/10.1016/0925-8388(94)90932-6
Autor:
Thomas A. Sandenaw
Publikováno v:
Solid State Communications. 43:361-364
The variable superconducting transition temperature of uranium metal appears to depend upon the variability of a low-temperature martensitic transformation. Local structural fluctuations and phase instabilities are suggested as resulting when the tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fda527a58d97e6e52f56d968f5c14bc3
https://doi.org/10.1016/0038-1098(82)90494-x
https://doi.org/10.1016/0038-1098(82)90494-x
Autor:
Thomas A. Sandenaw
Publikováno v:
Scripta Metallurgica. 15:397-401
1. 1. The D2h Pmnm space group recently reported for α'-phase U suggests the phase is that of a 2H close-packed layered structure (commensurate) resulting from a martensitic transformation. A 9R type of layering may also be possible under some circu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30bfadae717d4f1d83ad14d05144e4d1
https://doi.org/10.1016/0036-9748(81)90218-0
https://doi.org/10.1016/0036-9748(81)90218-0
Autor:
Thomas A. Sandenaw, Delbert R. Harbur
Publikováno v:
Journal of Physics and Chemistry of Solids. 35:795-805
The frequent irreproducibility of results from physical property measurements made on Pu metal suggests the existence of different states below room temperature. Heat capacity measurements yield evidence which can be interpreted as confirmation for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a29047893b302a72c63f3ab3f630f9bb
https://doi.org/10.1016/s0022-3697(74)80259-3
https://doi.org/10.1016/s0022-3697(74)80259-3
Autor:
Thomas A. Sandenaw
Publikováno v:
Journal of Nuclear Materials. 73:204-207
Evidence is presented to show the difficulty in getting pure α-phase plutonium and that few experimentalists have made physical property measurements on it. Repeated cycling within the temperature range between 298 K and 373 K, where the diffusion c
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https://explore.openaire.eu/search/publication?articleId=doi_________::b8b35512ec0228246601b3b18251e93a
https://doi.org/10.1016/0022-3115(78)90561-5
https://doi.org/10.1016/0022-3115(78)90561-5
Autor:
Thomas A. Sandenaw
Publikováno v:
Scripta Metallurgica. 16:1005-1008
It is proposed that the superconducting transition temperature (T /SUB c/) of uranium metal is affected by the degree of completion of the ..cap alpha..-U ..-->.. ..cap alpha../sup 1/-U martensitic displacive) transformation and that the superconduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::282cd50a9150cc540ff4e33b6a756e1c
https://doi.org/10.1016/0036-9748(82)90144-2
https://doi.org/10.1016/0036-9748(82)90144-2
Autor:
Thomas A. Sandenaw
Publikováno v:
Journal of Nuclear Materials. 57:145-150
Extreme dips, which are seldom reproducible, occur in specific heat versus temperature curves of PuC/sub 0.80/. Heat evolution, which appears to be the source of the dips, occurs in several strongly pronounced stages. This can be interpreted as evide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03dc255e703fb8c3f08b1b8895807a97
https://doi.org/10.1016/0022-3115(75)90254-8
https://doi.org/10.1016/0022-3115(75)90254-8