liu.seSök publikationer i DiVA
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Nanomechanical and microtribological properties of yttrium thin films for photocathode engineering
Linköpings universitet, Institutionen för fysik, kemi och biologi. Linköpings universitet, Tekniska fakulteten. SKF Res and Dev Ctr, Netherlands.ORCID-id: 0000-0003-3277-1945
Univ Salento, Italy; Ist Nazl Fis Nucl, Italy.
Univ Salento, Italy; Ist Nazl Fis Nucl, Italy.
Univ Patras, Greece.
Visa övriga samt affilieringar
2019 (Engelska)Ingår i: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films, ISSN 0734-2101, E-ISSN 1520-8559, Vol. 37, nr 3, artikel-id 031507Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The authors study the nanomechanical and microtribological properties of yttrium (Y) thin films deposited by pulsed laser deposition on Cu polycrystalline substrates. Nanoindentation tests reveal that such films have a high hardness of H = 2.3 GPa and a reduced elastic modulus of 71.7 GPa with respect to the Cu substrates. The friction coefficient between a diamond tip and the Y film reaches a steady state value of mu similar to 0.34, lower than that for the Cu (mu similar to 0.38). Moreover, nano-scratch experiments show that Y films are more scratch-resistant than the Cu substrates, probably due to their greater hardness, higher elastic recovery, and lower friction coefficient. Their results confirm that the mechanical and tribological properties of the Y films are suitable for designing and fabricating scratch-resistant hybrid photocathodes and can reduce instabilities and unwanted discharges in the cavity of the radio-frequency gun. Furthermore, the low surface roughness and the low work function of the material are important characteristics for a photocathode based on the Y thin film for the production of high-brightness electron beams. Published by the AVS.

Ort, förlag, år, upplaga, sidor
A V S AMER INST PHYSICS , 2019. Vol. 37, nr 3, artikel-id 031507
Nationell ämneskategori
Tribologi (ytteknik omfattande friktion, nötning och smörjning)
Identifikatorer
URN: urn:nbn:se:liu:diva-159002DOI: 10.1116/1.5088106ISI: 000472182400019OAI: oai:DiVA.org:liu-159002DiVA, id: diva2:1338107
Anmärkning

Funding Agencies|Italian National Institute of Nuclear Physics (INFN) - Italian Ministry of Research in the framework of FIRB [RBFR12NK5K]

Tillgänglig från: 2019-07-19 Skapad: 2019-07-19 Senast uppdaterad: 2019-07-19

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Sök vidare i DiVA

Av författaren/redaktören
Broitman, Esteban
Av organisationen
Institutionen för fysik, kemi och biologiTekniska fakulteten
I samma tidskrift
Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films
Tribologi (ytteknik omfattande friktion, nötning och smörjning)

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 160 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf