Zobrazeno 1 - 10
of 30
pro vyhledávání: '"A.L. Evelyn"'
Autor:
Robert Lee Zimmerman, David B. Poker, A. Elsamadicy, David J. Larkin, B. Gasic, D. Ila, E. K. Williams, Dale K. Hensley, A.L. Evelyn
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :892-896
Nanoclusters gold, silver and copper are produced in 6H-SiC by implanting 1.0 MeV Au, 2.0 MeV Ag and 2.0 MeV Cu into the Si face of SiC at room or elevated temperature followed by annealing at various temperatures. The absorption bands for each type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ec45a4b76028fb557ed2686a2f34497
https://doi.org/10.1016/s0168-583x(99)01040-x
https://doi.org/10.1016/s0168-583x(99)01040-x
Autor:
Robert Lee Zimmerman, C Drevet, S Kalbitzer, Daryush Ila, Dale K. Hensley, Chr. Klatt, K. Bhat, A.L. Evelyn, Nathalie Just, David B. Poker
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 148:1141-1145
MeV ions passing through polymer films modify their electrical and optical properties and these changes are related to changes in the chemical structures of the polymers. The effects of certain cross linking enhancers, such as sulfur and other pendan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b971d1e38e6038528b3772b356b46b3b
https://doi.org/10.1016/s0168-583x(98)00858-1
https://doi.org/10.1016/s0168-583x(98)00858-1
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 85:861-863
Phenolformaldehyde resin, which is used to make items of glassy carbon hollow ware, contains residual alkaline catalyst and other impurities. Pyrolysis reduces the concentrations of hydrogen and oxygen during condensation and dehydrogenation reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49eae213edfbd8fa9233b83fdb0d8c53
https://doi.org/10.1016/0168-583x(94)95938-2
https://doi.org/10.1016/0168-583x(94)95938-2
Publikováno v:
MRS Proceedings. 629
Glassy Polymeric Carbon (GPC), made from cured phenolic resins, is sufficiently chemically inert and biocompatible that it is suitable for medical applications, such as heart valves and other prosthetic devices. We have used energetic ion bombardment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::813771cbd17e5636b093c65c8894ce0f
https://doi.org/10.1557/proc-629-ff9.6
https://doi.org/10.1557/proc-629-ff9.6
Publikováno v:
MRS Proceedings. 647
We present recent results using ions such as C., O, Si, Fe, Zn, and Au at energies between 100 keV to 10 MeV to increase the roughness and porosity of the partially and fully cured precursor phenolic resins. The fully cured phenolic resin is called G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e1456d51261e2804af16a2cba1dfc55
https://doi.org/10.1557/proc-647-o4.8
https://doi.org/10.1557/proc-647-o4.8
Autor:
I. Muntele, Claudiu Muntele, Daryush Ila, Dale K. Hensley, David B. Poker, E. K. Williams, A.L. Evelyn
Publikováno v:
MRS Proceedings. 622
We have produced silicon carbide sensors by two techniques: palladium coating and low energy palladium implantation. The palladium implantation was done at 550°C into the Si face of 6H, n-type SiC at various energies and at various fluences. The sen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55eee4bd73e36a7913deee3da7a39283
https://doi.org/10.1557/proc-622-t6.6.1
https://doi.org/10.1557/proc-622-t6.6.1
Publikováno v:
AIP Conference Proceedings.
We have mapped and studied the effects of MeV alpha-particle bombardment in polyvinylidene chloride (PVDC) and polyethylene (PE). We used 3.5 and 5.0 MeV alpha-particle incident beams and stacked polymer films to separate the contributing effects of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c253b2d88df932dd9114ad551c0b4d7
https://doi.org/10.1063/1.52728
https://doi.org/10.1063/1.52728
Publikováno v:
MRS Proceedings. 438
The electronic (εe) and nuclear (εa) stopping effects produced by 3.5 MeV and 5.0 MeV ion bombardment in polyvinylidine chloride (PVDC), polyethylene (PE) and polyethylene sulfide were studied and compared. To separate these effects we chose two bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca6cb378d2ffd2a755d3904012260a78
https://doi.org/10.1557/proc-438-499
https://doi.org/10.1557/proc-438-499
Autor:
Daryush Ila, David B. Poker, G.M. Jenkins, H. Maleki, Robert Lee Zimmerman, A.L. Evelyn, J.H. Fisher
We have used proton, alpha, nitrogen and oxygen particles at energies between 1 to 8.5 MeV to modify the conductance of various polymers with linear molecular chain structure and polymers with two dimensional networks of chemical bonds, specifically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3462615c9586a969adee14e3032b4a30
https://doi.org/10.1016/b978-0-444-82334-2.50211-2
https://doi.org/10.1016/b978-0-444-82334-2.50211-2
Publikováno v:
MRS Proceedings. 338
We have developed a technique to fabricate embedded variable conductivity paths in phenolformaldehyde, PF-resin, with resistivity as high as 109 Ω-cm. The resin used for this work consists of a monomer called Phenyl Methanol (Resol) which upon setti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a53a5234274168e1890e36c0db5136a1
https://doi.org/10.1557/proc-338-613
https://doi.org/10.1557/proc-338-613