Ho-kyum Kim

  • Citations Per Year
Learn More
We report a successful fabrication of GdBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-delta</sub> (GdBCO) coated conductor on the ion-beam assisted deposition (IBAD) MgO template with a new buffer layer of BaZrO<sub>3</sub> (BZO). The BZO films were deposited on the IBAD-MgO template at various substrate temperatures (<i>T</i> <sub>S</sub>) and oxygen partial(More)
Long-length (Sm<sub>1+x</sub>B<sub>2-x</sub>C<sub>3</sub>O<sub>7-y</sub>) coated conductor was fabricated using ion beam assisted deposition (IBAD)-MgO template (LaMnO<sub>3</sub>/IBAD - MgO/Y<sub>2</sub>O<sub>3</sub>/Al<sub>2</sub>O<sub>3</sub>/Hastelloy) by the reactive co-evaporation method for electric power applications. SmBCO superconducting layers(More)
With much effort devoted by many research groups, the performance of 2nd generation (2G) superconducting wires, also called coated conductors (CC), was drastically improved, leading to many meaningful and impressive demonstrations of electric power devices. Now that the performances such as critical current, in-field characteristics, and mechanical(More)
The DSM-CC(Digital Storage Media Command and Control) -Data Carousel can improve reliability, usability and compatibility by cyclic retransmission. In MPEG(Moving Picture Experts Group)-4 system, each of objects can be managed independently by objectbased coding. Object is composed of ES(Elementary Stream) and transmitted through DMIF(Delivery Multimedia(More)
We investigated the <i>ex-situ</i> conversion process of amorphous precursor films for SmBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-delta</sub> (SmBCO) coated conductors (CC). Amorphous precursor films were first deposited on the LaMnO<sub>3</sub>/homoepi-MgO/ IBAD-MgO/Y<sub>2</sub>O<sub>3</sub>/Al<sub>2</sub>O<sub>3</sub>/Hastelloy substrate by e-beam(More)
  • 1