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AgI as a solid lubr...
AgI as a solid lubricant in electrical contacts
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- Lauridsen, Jonas (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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- Eklund, Per (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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- Lu, Jun (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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- Knutsson, Axel (author)
- Linköpings universitet,Nanostrukturerade material,Tekniska högskolan
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- Odén, Magnus (author)
- Linköpings universitet,Nanostrukturerade material,Tekniska högskolan
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- Mannerbro, R. (author)
- ABB Components, Lyviksvägen 10, SE-771 41, Ludvika, Sweden
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- Andersson, A. M. (author)
- ABB Corporate Research, Forskargränd 7, SE-721 78, Västerås, Sweden
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- Hultman, Lars (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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(creator_code:org_t)
- English.
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
Close
- AgI coatings have been deposited by electroplating on Ag plated Cu coupons. Electron microscopy shows that the coatings consist of weakly agglomerated AgI grains. X-ray diffraction, differential scanning calorimetry, thermogravimetry and mass spectrometry show that the AgI exhibits a reversible transformation from hexagonal to cubic phase at 150 °C. AgI starts to decompose at 150 °C with an accelerating rate up to the AgI melting temperature (555 °C), where a complex-bonded hydroxide evaporates. Ag-pin-on-disk testing shows that the iodine addition to Ag decreases the friction coefficient from 1.2 to ~0.4. The contact resistance between AgI and Ag becomes less than 100 μΩ after ~500 operations as the AgI deagglomerates and Ag is exposed on the surface, and remains low during at least 10000 reciprocating operations. This makes AgI suitable as a solid lubricant in electrical contacts.
Keyword
- Silver Iodide; Friction coefficient; Contact resistance; TEM; Phase transformation; DSC
- NATURAL SCIENCES
- NATURVETENSKAP
Publication and Content Type
- vet (subject category)
- ovr (subject category)
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