Preparation and some properties of Cu-Li alloys containing up to 20 at. % Li

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Lithium strongly segregates to the surface of Cu-Li alloys, thus substantially lowering the Cu sputtering yield relative to pure Cu. Use of Cu-Li limiters or divertors in tokamaks can therefore be expected to be beneficial in limiting high-Z plasma impurity influx. A large scale (100-200g) method for the preparation of Cu-Li alloys is described. Analysis reveals that on solidification from the melt stratification occurs which leads to compositional inhomogeneity. The results are discussed in the light of the Cu-Li binary phase diagram and rationalized on the basis of large density differences between Cu and Cu-Li solid solutions. It is concluded ... continued below

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Pages: 9

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Mendelsohn, M.; Krauss, A.R. & Gruen, D.M. January 1, 1985.

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Description

Lithium strongly segregates to the surface of Cu-Li alloys, thus substantially lowering the Cu sputtering yield relative to pure Cu. Use of Cu-Li limiters or divertors in tokamaks can therefore be expected to be beneficial in limiting high-Z plasma impurity influx. A large scale (100-200g) method for the preparation of Cu-Li alloys is described. Analysis reveals that on solidification from the melt stratification occurs which leads to compositional inhomogeneity. The results are discussed in the light of the Cu-Li binary phase diagram and rationalized on the basis of large density differences between Cu and Cu-Li solid solutions. It is concluded that obtaining homogeneous Cu-Li solid solutions is a nontrivial task.

Physical Description

Pages: 9

Notes

NTIS, PC A02/MF A01; 1.

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  • ASM metals congress - international conference on surface modifications, Toronto, Ontario, Canada, 13 Oct 1985

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  • Other: DE86001786
  • Report No.: CONF-8510160-4
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5108902
  • Archival Resource Key: ark:/67531/metadc1053779

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1985

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 26, 2018, 3:36 p.m.

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Mendelsohn, M.; Krauss, A.R. & Gruen, D.M. Preparation and some properties of Cu-Li alloys containing up to 20 at. % Li, article, January 1, 1985; Illinois. (digital.library.unt.edu/ark:/67531/metadc1053779/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.