Zobrazeno 1 - 10
of 14
pro vyhledávání: '"George K. Lucey"'
Publikováno v:
Journal of Electronic Packaging. 117:270-274
Composite solder connections, modeled as miniature single-lap shear layers between copper plates, were fabricated and pulled to fracture. The solder layers (3.1 × 3.1 × 0.50 mm) were eutectic lead-tin/particulate Cu6Sn5 composites. Under load, shea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e1cbb47484b528008b09b7fde44b6d3
https://doi.org/10.1115/1.2792104
https://doi.org/10.1115/1.2792104
Autor:
Dennis P. Anderson, T. Gher, D. Hillman, Dennis Tench, P. Jambazian, B. Piekarski, P. Kim, John T. White, George K. Lucey
Publikováno v:
JOM. 47:36-41
This article describes a new reduced-oxide soldering activation (ROSA™) process that removes oxides from tin, tin-lead, and copper surfaces without the use of a flux. In this process, surface oxides are electrolessly reduced back to the metallic st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::347fd060811e2e7fd6276395715a363e
https://doi.org/10.1007/bf03221202
https://doi.org/10.1007/bf03221202
Autor:
D. Frommelt, T. Gher, Dennis Tench, D. Hillman, D.P. Anderson, P. Kim, B. Piekarski, John T. White, George K. Lucey, P. Jambazian
Publikováno v:
Soldering & Surface Mount Technology. 7:18-25
The recently developed Reduced Oxide Soldering Activation (ROSA™) method is shown to be compatible with long‐term use with mass soldering processes. Prototype regeneration cells operated for as long as six months with minimal maintenance retained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::863cc41e711207de94024fc1876c72a7
https://doi.org/10.1108/eb037886
https://doi.org/10.1108/eb037886
Publikováno v:
Microscopy Research and Technique. 25:503-508
Copper samples, hot solder (eutectic) dipped and thermally aged, were cross-sectioned and placed in an environmental scanning electronic microscope (ESEM). While in the ESEM the samples were heated for ∼ 2.5 h at 170°C to stimulate the growth of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6769f9afaa314ce4467e74634717dae
https://doi.org/10.1002/jemt.1070250522
https://doi.org/10.1002/jemt.1070250522
Publikováno v:
Soldering & Surface Mount Technology. 5:46-50
The sequential electrochemical reduction analysis (SERA) method was evaluated in production and demonstrated to provide a non‐destructive, objective measure of the solderability of production printed wiring boards. Approximately 1000 boards were an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a25656b6e259142d1f08ee2bbfa57f67
https://doi.org/10.1108/eb037813
https://doi.org/10.1108/eb037813
Autor:
null Jr, George K. Lucey
This report documents engineering design guidelines used to construct an explosive gas generator (100 kpsi maximum) and an adjustable area ratio (2844 maximum) nozzle. The equipment enables ring vortices to be generated using jet streams with signifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b7447e6097ea4903c830b5fbfe6aa17
https://doi.org/10.21236/ada372518
https://doi.org/10.21236/ada372518
Autor:
Dennis P. Anderson, Leslie F. Warren, D. Hillman, P. Kim, George K. Lucey, P. Jambazian, Dennis Tench
Publikováno v:
Journal of Applied Electrochemistry. 25
A new method is described for removing oxides from metallic surfaces via electroless reduction by the reducing member of a redox couple that is electrochemically regenerated in a closed loop. On tin-lead coatings, which are widely used to enhance the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24c6057a3a9d028798364a125c5127c3
https://doi.org/10.1007/bf00241589
https://doi.org/10.1007/bf00241589
Publikováno v:
Circuit World. 21:44-45
Fluxless wave soldering in a nitrogen atmosphere was investigated for epoxy‐fibreglass circuit board coupons having bare copper and solder‐coated through‐holes. The Reduced Oxide Soldering Activation (ROSA™) pretreatment was found to consiste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7dab7c4a4d67ccb28e517329e9f260c
https://doi.org/10.1108/eb046303
https://doi.org/10.1108/eb046303
Autor:
George K. Lucey
Publikováno v:
The Journal of the Acoustical Society of America. 43:1324-1328
Correction factors are derived that show the effect of thickness on the fundamental resonant‐frequency equations for cylindrical disks and rods and an equation is given that defines a boundary between a thick disk and a thick rod. These corrections
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bf1c3af09b3740818f4827dd188faa3
https://doi.org/10.1121/1.1910988
https://doi.org/10.1121/1.1910988
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