Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Roy E. Crooks"'
Publikováno v:
Acta Materialia. 173:231-241
Aluminum-lithium alloys offer high specific-strength and -stiffness which makes them attractive for aerospace applications. However, several material related challenges have limited the use of these alloys including a tendency for grain boundary crac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51c5f1b30d245e3ced6cbea1c82b4e4b
https://doi.org/10.1016/j.actamat.2019.04.030
https://doi.org/10.1016/j.actamat.2019.04.030
Autor:
Tarek M. Abdel-Fattah, Roy E. Crooks
Publikováno v:
ECS Transactions. 33:571-574
We have performed screening tests on candidate solutions to replace hazardous acidic mixtures, such as HF, HNO3 and H3PO4, for the electrochemical polishing of niobium (Nb) superconducting radio frequency (SRF) cavities. The best results, in terms of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b818939d7f2ae123af06cca41b73a49
https://doi.org/10.1149/1.3484815
https://doi.org/10.1149/1.3484815
Autor:
Wei Cao, Tiffany V. Williams, Sayata Ghose, Yi Lin, Roy E. Crooks, Joseph G. Smith, Kent A. Watson, John W. Connell
Publikováno v:
The Journal of Physical Chemistry C. 113:14858-14862
Silver nanoparticles of small average diameter (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3541d5b057e1cc49373cec07708406ee
https://doi.org/10.1021/jp905076u
https://doi.org/10.1021/jp905076u
Autor:
Joseph G. Smith, Wei Cao, Sayata Ghose, Kent A. Watson, Yi Lin, Michael J. Fallbach, Donavon M. Delozier, Roy E. Crooks, John W. Connell
Publikováno v:
ACS Nano. 3:871-884
A rapid, solventless method is described for the decoration of carbon nanotubes with metal nanoparticles. The straightforward two-step process utilizes neither reducing agents nor electric current and involves the dry mixing of a precursor metal salt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bbe40d207eb0dcf7f98227be1f825b7
https://doi.org/10.1021/nn8009097
https://doi.org/10.1021/nn8009097
Publikováno v:
Experimental Mechanics. 50:135-143
Aluminum–lithium (Al–Li) alloys offer attractive combinations of high strength and low density for aerospace structural applications. However, a tendency for delamination fracture has limited their use. Identification of the metallurgical mechani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bb19428d311ec76b54ea57fe5786094
https://doi.org/10.1007/s11340-008-9202-9
https://doi.org/10.1007/s11340-008-9202-9
Publikováno v:
Materials Science and Engineering: A. 358:384-389
The exposure of as-produced HiPCo single-walled carbon nanotubes (SWNTs) to a camera flash causes ignition, (oxidation) and subsequent coalescence of the Fe catalyst particles, while purified SWNTs do not respond to flashing. TEM and electron energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4429b788ad8dc833bd3e1f1b681ad15
https://doi.org/10.1016/s0921-5093(03)00282-x
https://doi.org/10.1016/s0921-5093(03)00282-x
Autor:
Neal D. Evans, Emilie J. Siochi, Cheol Park, Joycelyn S. Harrison, Edward A. Kenik, Roy E. Crooks
Publikováno v:
Nanotechnology. 14:L11-L14
High-resolution electron microscopy and energy-filtered imaging methods were used to examine single-wall carbon nanotubes and nanotube reinforced polyimide composites. The nanotubes were studied alone, in a polyimide matrix composite, and after depos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb718942044a4cf2a63cbc691e106db7
https://doi.org/10.1088/0957-4484/14/9/101
https://doi.org/10.1088/0957-4484/14/9/101
Autor:
Kent A. Watson, Emilie J. Siochi, Joseph G. Smith, Cheol Park, Terry L. St. Clair, Joycelyn S. Harrison, Sharon E. Lowther, Roy E. Crooks, John W. Connell, Zoubeida Ounaies
Publikováno v:
Chemical Physics Letters. 364:303-308
Single wall nanotube reinforced polyimide nanocomposites were synthesized by in situ polymerization of monomers of interest in the presence of sonication. This process enabled uniform dispersion of single wall carbon nanotube (SWNT) bundles in the po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8c4a8021d2578d6b136539546bbd64e
https://doi.org/10.1016/s0009-2614(02)01326-x
https://doi.org/10.1016/s0009-2614(02)01326-x
Publikováno v:
Acta Materialia. 47:661-669
The effect of grain boundary misorientation on the high-cycle fatigue performance of solution-treated, metastable- β titanium alloys was investigated. Initial damage during cyclic deformation was associated with the formation of coarse, planar slip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29a4e5fe674038742dd3403688334983
https://doi.org/10.1016/s1359-6454(98)00343-7
https://doi.org/10.1016/s1359-6454(98)00343-7
Autor:
Michael W. Smith, Peter T. Lillehei, Cheol Park, Joycelyn S. Harrison, Jae-Woo Kim, Roy E. Crooks, Kevin C. Jordan
Publikováno v:
Nanotechnology. 20:505604
A new method for producing long, small-diameter, single- and few-walled, boron nitride nanotubes (BNNTs) in macroscopic quantities is reported. The pressurized vapor/condenser (PVC) method produces, without catalysts, highly crystalline, very long, s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::578af555eddaac9192d70f5f5de162c5
https://doi.org/10.1088/0957-4484/20/50/505604
https://doi.org/10.1088/0957-4484/20/50/505604