Publications
Publication Information
| Title | ELECTRICAL AND THERMAL PROPERTIES OF COLD-SPRAYED BULK COPPER AND COPPER-TUNGSTEN SAMPLES AT CRYOGENIC TEMPERATURES | ||
| Authors | Himal Pokhrel, Gianluigi Ciovati, Pashupati Dhakal, Joshua Spradlin, C. Jing, A. Kanareykin | ||
| JLAB number | JLAB-ACC-21-3438 | ||
| LANL number | (None) | ||
| Other number | DOE/OR/23177-5260 | ||
| Document Type(s) | (Meeting) | ||
| Category: | SRF Technology |
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| Associated with EIC: | No | ||
| Supported by Jefferson Lab LDRD Funding: | No | ||
| Funding Source: | Other | ||
| Other Funding: | SBIR grant DE-SC00195589 | ||
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Meeting Paper compiled for SRF 2021 Proceedings SRF2021 Edited By Kenji Saito, Ting Xu, Naruhiko Sakamoto, Ana Lesage, Volker RW Schaa JACOW (2021) Page(s) 142-145 | |||
| Publication Abstract: | The development of high thermal conductivity coatings with pure copper or copper-tungsten alloy could be beneficial to improve the heat transfer of bulk Nb cavities for conduction cooling applications and to increase the stiffness of bulk Nb cavities cooled by liquid helium. Cold spray is an additive manufacturing technique suitable to grow thick coatings of either Cu or CuW on a Nb cavity. Bulk (~5 mm thick) coatings of Cu and CuW were deposited on standard 3 mm thick, high-purity Nb sam-ples and smaller samples with 2 mm × 2 mm cross section were cut for measuring the thermal conductivity and the residual resistivity ratio. The samples were subjected to annealing at different temperatures and a maximum RRR of ~130 and ~40 were measured for the Cu samples and CuW samples, respectively. | ||
| Experiment Numbers: | other | ||
| Group: | SRF Research & Dev | ||
| Document: | |||
| DOI: | https://doi.org/10.18429/JACoW-SRF2021-SUPTEV010 | ||
| Accepted Manuscript: | suptev010.pdf | ||
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