Preparation and some properties of Cu-Li alloys containing up to 20 at. % Li
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.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 5108902
- Report Number(s):
- CONF-8510160-4; ON: DE86001786
- Resource Relation:
- Conference: ASM metals congress - international conference on surface modifications, Toronto, Ontario, Canada, 13 Oct 1985; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Recent results on the preparation and properties of Li-containing Cu alloys
Temperture and composition dependence of the high flux plasma sputtering yield of Cu-Li binary alloys
Related Subjects
36 MATERIALS SCIENCE
COPPER ALLOYS
CHEMICAL PREPARATION
PHASE DIAGRAMS
DIVERTORS
MATERIALS TESTING
LIMITERS
LITHIUM ALLOYS
PHYSICAL PROPERTIES
SPUTTERING
TOKAMAK DEVICES
ALLOYS
CLOSED PLASMA DEVICES
DIAGRAMS
SYNTHESIS
TESTING
THERMONUCLEAR DEVICES
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
360101 - Metals & Alloys- Preparation & Fabrication