Mechanism of acceleration of growth rate under shear flow -universal role of the "oriented melt" near the surface

Kaori Watanabe, Masamichi Hikosaka, Kiyoka Okada, Akihiko Toda, Motoi Yamashita, Shinichi Yamazaki, Takashi Taniguchi, Kiyohito Koyama, Koji Yamada, Kastuhaeu Tagashira

Research output: Contribution to conferencePaper

Abstract

We propose that shear rate γ̇ (Z) within the interface significantly increases and conformation of molecular chains will be elongated. When γ̇ (Z) becomes larger, the elongation of chains will overcome the entropic relaxation, that results in formation of the "oriented melt". Universal crystallization mechanism under shear flow is proposed that the growth rate of spherulite or shish is accelerated near the surface, that is due to formation of the oriented melt.

Original languageEnglish
Number of pages1
Publication statusPublished - Dec 1 2005
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005

Other

Other54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period5/25/055/27/05

Keywords

  • Crystallization/
  • Isotropic melt
  • Oriented melt
  • Shear flow
  • Spherulite

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Watanabe, K., Hikosaka, M., Okada, K., Toda, A., Yamashita, M., Yamazaki, S., Taniguchi, T., Koyama, K., Yamada, K., & Tagashira, K. (2005). Mechanism of acceleration of growth rate under shear flow -universal role of the "oriented melt" near the surface. Paper presented at 54th SPSJ Annual Meeting 2005, Yokohama, Japan.