Low AC Loss YBCO Coated Conductor

The development of long length YBCO coated conductors for military and commercial utility applications will require conductors with low AC losses and high engineering current densities. This proposal will investigate textured substrate approaches thatwill result in HTS conductors with significantly lower AC losses and higher engineering current densities than a patterned strip (ribbon) approach currently being considered for YBCO coated conductors development. This approach to a low AC loss conductorusing textured metal substrates will be a lower cost approach than the patterning of tape or ribbon to make a multifilamentary YBCO conductor. During this Phase I we will make these substrates and evaluate texture in the metal substrates, sol-gel bufferlayers, and sol-gel YBCO layers after deposition.By accelerating the development of low AC loss YBCO coated conductors, commercial applications for generators , motors, fault current limiters, and transformers will be implemented sooner.