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Details of Grant 

EPSRC Reference: GR/R42528/01
Title: Novel Processig of RE-based Superconductors for Improved Grain Boundary Properties
Principal Investigator: Blamire, Professor M
Other Investigators:
Evetts, Professor J Tarte, Dr EJ Glowacki, Professor BAJ
Researcher Co-Investigators:
Project Partners:
Advanced Ceramics Ltd National Grid Oxford Instruments Ltd
Department: Materials Science & Metallurgy
Organisation: University of Cambridge
Scheme: Standard Research (Pre-FEC)
Starts: 01 October 2001 Ends: 31 January 2005 Value (£): 101,860
EPSRC Research Topic Classifications:
Materials Characterisation Materials Processing
EPSRC Industrial Sector Classifications:
Electronics Manufacturing
Energy
Related Grants:
GR/R42535/02
Panel History:  
Summary on Grant Application Form
The main thrust of the programme is to develop a commercially viable process for producing enhanced GB properties in 123 CCS. We will pursue two very promising, novel processing. routes for GB Jc optimisation.I. Selective Ca doping of YBa2Cu3o7-z (123) CC GBs through deposition and subsequent heat treatment of surface gels, or via diffusion from a suitable buffer layer. Such selective doping will prevent the reduction in Tc by global doping2. Global Ca doping in Y2Ba4CU8Ox (248). For the 248 phase (also commonly referred to as the 124 phase), Ca doping increases T2 from 81k to 90k. Hence there is no need for selective doping.Supporting and exploratory science will be undertaken in the form of growth, doping and characterisation of bicrystal films. For exploration of alternntive dopants to Ca. LPE coating of bicrystals using doped fluxes will be undertaken. Finally. a robust prototype system for continuous doping/ annealing of CC tapes will be developed.
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Organisation Website: http://www.cam.ac.uk