Numerical study on crystal growth process in YBCO film fabricated by TFA-MOD method

N. Mori, K. Tada, K. Yamada, Ryo Teranishi, Masashi Mukaida

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

To fabricate high-Jc coated conductor of YBa2Cu3O7-X (1 2 3) film, metal-organic deposition (MOD) process using precursor solution of trifluoroacetates (TFAs) is one of the most promising low cost non-vacuum methods. However, details of the growth process and the mechanism of 123-crystal growth are still unknown. To clarify the growth mechanism of 123-film, the growth processes of 123-crystals were studied by the experimental method and the numerical method. Microstructures of growing 123-crystals were revealed through transmission electron microscopy (TEM) observations of the specimens quenched during the growth of 123-crystals on LaAlO3 (LAO) substrates. The growth process of faceted 123-crystals with various crystal orientations was simulated by the two-dimensional numerical method using c-axis and a-axis growth rate functions. The growth processes and the microstructures of 123-crystals were visualized by the simulation. The meandering of crystal boundaries, overgrowth of preferred oriented crystals, and the effects of initial distributions of nucleated crystals and particles were studied.

Original languageEnglish
Pages (from-to)1537-1541
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - Sep 15 2008

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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