Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Ralph W. Bruce"'
Autor:
Nathan E. Ives, Arthur F. Witulski, Ralph W. Bruce, Ronald D. Schrimpf, En Xia Zhang, Michael W. McCurdy, Daniel M. Fleetwood, Jin Chen, Lloyd W. Massengill
Publikováno v:
IEEE Transactions on Nuclear Science. 62:2417-2422
The effects of proton-induced displacement damage in GaN HEMTs on circuit-level RF power amplifier parameters such as circuit gain, stability, and RF output power are presented. The results are explained based on the device-level degradation. Commerc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd6c494913b862045d80df901eeab7d7
https://doi.org/10.1109/tns.2015.2499160
https://doi.org/10.1109/tns.2015.2499160
Publikováno v:
Key Engineering Materials. 551:73-85
Mg-Ti alloys are attractive for structural applications because of low density and improved corrosion resistance by selective oxidation including hydrogen storage and switchable mirror applications. Titanium has a melting point (1670°C) that greatly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11c16827aebd221a7712d07c9e93d806
https://doi.org/10.4028/www.scientific.net/kem.551.73
https://doi.org/10.4028/www.scientific.net/kem.551.73
Autor:
Chad A. Stephenson, Steven H. Gold, Arne W. Fliflet, Ralph W. Bruce, M. Ashraf Imam, C.R. Feng
Publikováno v:
Materials Science Forum. :2002-2005
Millimeter-wave sintering of ceramic laser host materials has been under investigation for high-energy laser (HEL) applications. Advantages of polycrystalline, compared to single-crystal, laser host materials include lower processing temperature, hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcf759810a1d6e517b9604234a777067
https://doi.org/10.4028/www.scientific.net/msf.654-656.2002
https://doi.org/10.4028/www.scientific.net/msf.654-656.2002
Publikováno v:
Key Engineering Materials. 436:131-140
The emerging reduction technologies for titanium from ore produce powder instead of sponge. Conventional methods for sintering and melting of titanium powder are costly, as they are energy intensive and require high vacuum, 10-6 Torr or better, since
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1622e941098ad2b5e545f5835e2563d9
https://doi.org/10.4028/www.scientific.net/kem.436.131
https://doi.org/10.4028/www.scientific.net/kem.436.131
Autor:
Allen K. Kinkead, Chad A. Stephenson, M. Ashraf Imam, Ralph W. Bruce, Arne W. Fliflet, C.R. Feng, Steven H. Gold
Publikováno v:
Materials Science Forum. :2052-2057
We present results on microwave, millimeter-wave, and millimeter-wave-driven plasma-assisted processing of materials. The research is primarily based on two systems- a 2.45 GHz, 6 kW S-band system and an 83 GHz, 15 kW gyrotron-based quasi-optical sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7663b799f26ed9152ceb971deb59667d
https://doi.org/10.4028/www.scientific.net/msf.638-642.2052
https://doi.org/10.4028/www.scientific.net/msf.638-642.2052
Autor:
Ralph W. Bruce, Arne W. Fliflet, Steven H. Gold, Lynn K. Kurihara, David Lewis, Allen K. Kinkead, M. Lombardi, M. Ashraf Imam
Publikováno v:
Materials Science Forum. :3249-3254
We are using 2.45 GHz (S-Band) microwave systems and an 83-GHz, gytrotron-based, millimeter-wave beam system in material processing and other areas. We use one 2.45 GHz system in preparation of nanophase metals, metal mixtures and metal oxides, via t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d89590e1937e78b400cd4b3fc7407947
https://doi.org/10.4028/www.scientific.net/msf.539-543.3249
https://doi.org/10.4028/www.scientific.net/msf.539-543.3249
Autor:
Ralph W. Bruce, R.L. Bruce, Allen K. Kinkead, Arne W. Fliflet, Steven H. Gold, Manfred Kahn, M. A. Imam, David Lewis
Publikováno v:
IEEE Transactions on Plasma Science. 33:668-678
Summary form only given. The high power beams that can be generated by CW gyrotrons represent a promising energy source for high-temperature processing of materials. An experimental facility based on an 83-GHz, 15 kW CW industrial gyrotron has been s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd1b68eb462efae7773faf73eeada5be
https://doi.org/10.1109/tps.2005.844509
https://doi.org/10.1109/tps.2005.844509
Publikováno v:
Materials Science Forum. :2739-2744
We present results on microwave and millimeter-wave processing of materials. The research is primarily based on two systems– a 2.45 GHz, 6 kW S-band system and an 83 GHz, 15 kW gyrotron based quasi-optical system. These systems have been used for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a24f86d97de2669d6a1365f953068b7
https://doi.org/10.4028/www.scientific.net/msf.475-479.2739
https://doi.org/10.4028/www.scientific.net/msf.475-479.2739
Publikováno v:
Science and Technology of Welding and Joining. 9:459-464
An 83 GHz gyrotron-based, millimetre-wave beam system is being used for a range of material processing. One very promising application of this technology is in joining of ceramic and ceramic composite materials and has unique advantages over competit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d0b29426b54ff279119126152620d96
https://doi.org/10.1179/136217104225021706
https://doi.org/10.1179/136217104225021706
Publikováno v:
Review of Scientific Instruments. 75:2678-2685
We present results for the estimation of the effective surface conductivity of the walls of a multimode microwave cavity applicator, based on measurements of reflected power from the cavity. During microwave thermal processing, this conductivity is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfa435672b6b9648775b3ec41310218c
https://doi.org/10.1063/1.1775315
https://doi.org/10.1063/1.1775315