The effect of processing parameters during heat treatment of bulk high-{Tc} superconductors
Plastic extrusion is a promising method for producing the long lengths of high-{Tc} superconductor that will be necessary to meet many potential applications. A crucial phase of the extrusion method is removal of organic constituents. Incomplete removal can leave residual carbon at grain boundaries, which can adversely affect the superconducting properties, whereas excessively rapid removal of the organics can cause the extruded superconductor to disintegrate completely. In this paper, we analyze the effects of the following aspects of organics removal, as they apply to the firing of extruded YBa{sub 2}Cu{sub 3}O{sub x} coils: (1) total pressure in the furnace, (2) oxygen flow, (3) heat conduction, and (4) diffusion of volatile components during removal of organics.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10106614
- Report Number(s):
- ANL/CP-72939; CONF-911213-19; ON: DE92004149
- Resource Relation:
- Conference: American Society of Mechanical Engineers (ASME) annual winter meeting,Atlanta, GA (United States),1-6 Dec 1991; Other Information: PBD: Apr 1991
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization of YBCO superconductor sintered in CO sub 2 -containing atmosphere
Control of YBa sub 2 Cu sub 3 O sub 7 minus x degradation during heat treatment