Wetting properties of liquid lithium on lithium compounds

S. A. Krat, A. S. Popkov, Yu M. Gasparyan, A. A. Pisarev, Peter Fiflis, Matthew Szott, Michael Christenson, Kishor Kalathiparambil, David N. Ruzic

Research output: Contribution to journalArticlepeer-review


Liquid metal plasma facing components (LMPFC) have shown a potential to supplant solid plasma facing components materials in the high heat flux regions of magnetic confinement fusion reactors due to the reduction or elimination of concerns over melting, wall damage, and erosion. To design a workable LMPFC, one must understand how liquid metal interacts with solid underlying structures. Wetting is an important factor in such interaction, several designs of LMPFC require liquid metal to wet the underlying solid structures. The wetting of lithium compounds (lithium nitride, oxide, and carbonate) by 200 °C liquid lithium at various surface temperature from 230 to 330 °C was studied by means of contact angle measurements. Wetting temperatures, defined as the temperature above which the contact angle is less than 90°, were measured. The wetting temperature was 257 °C for nitride, 259 °C for oxide, and 323 °C for carbonate. Surface tensions of solid lithium compounds were calculated from the contact angle measurements.

Original languageEnglish (US)
Pages (from-to)199-203
Number of pages5
JournalFusion Engineering and Design
StatePublished - Apr 1 2017


  • Contact angle measurement
  • Lithium
  • Lithium carbonate
  • Lithium nitride
  • Lithium oxide
  • Wetting

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • General Materials Science
  • Mechanical Engineering


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