In situ observation and simulation of growth process of faceted RE123 crystals

N. Mori, T. Maebatake, R. Teranishi, K. Yamada, M. Mukaida, M. Miura, M. Yoshizumi, T. Izumi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

To clarify the growth mechanism of faceted REBa2Cu 3O7 δ (RE123, RE = Sm, Y) crystals, the growth process of the crystals was observed in situ by using a high temperature microscope. The growth rate of each faceted interface of a crystal growing from the liquid + 211 phases under an undercooling was obtained from the relationship between the position of each interface and growth time. It was observed that some of the faceted interfaces of a growing crystal stopped growing after a period of time, while other interfaces continued to grow with a growth rate approximated by a function of the undercooling. The above stoppage of the growth was observed in situ for the first time, and this fact could give powerful support to the mechanism for a similar phenomenon in REBCO films which were fabricated by the trifluoroacetates metal organic deposition method: growing microstructures of RE123 crystals in the film were revealed by transmission electron microscopy (TEM) for quenched specimens. Some very thin a-axis grains were formed by a change in c-axis growth rate. Furthermore, we showed the above growth and stop phenomena of faceted interfaces of REBCO crystal grains using numerical simulations.

Original languageEnglish
Pages (from-to)1266-1270
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume470
Issue number20
DOIs
Publication statusPublished - Nov 1 2010

Fingerprint

Crystals
Undercooling
crystals
Crystal growth
simulation
supercooling
Trifluoroacetic Acid
Liquid Crystals
Crystallization
Microscopes
Metals
Transmission electron microscopy
Microstructure
Computer simulation
Liquids
liquid phases
microscopes
transmission electron microscopy
microstructure
Temperature

All Science Journal Classification (ASJC) codes

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

Cite this

In situ observation and simulation of growth process of faceted RE123 crystals. / Mori, N.; Maebatake, T.; Teranishi, R.; Yamada, K.; Mukaida, M.; Miura, M.; Yoshizumi, M.; Izumi, T.

In: Physica C: Superconductivity and its applications, Vol. 470, No. 20, 01.11.2010, p. 1266-1270.

Research output: Contribution to journalArticle

Mori, N. ; Maebatake, T. ; Teranishi, R. ; Yamada, K. ; Mukaida, M. ; Miura, M. ; Yoshizumi, M. ; Izumi, T. / In situ observation and simulation of growth process of faceted RE123 crystals. In: Physica C: Superconductivity and its applications. 2010 ; Vol. 470, No. 20. pp. 1266-1270.
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AU - Maebatake, T.

AU - Teranishi, R.

AU - Yamada, K.

AU - Mukaida, M.

AU - Miura, M.

AU - Yoshizumi, M.

AU - Izumi, T.

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