Phenomenological Anlaysis of Martensitic Transformation in Dicalcium Silicate.

DOI IR Web Site Web Site 4 Citations 13 References
  • Fukuda Koichiro
    Department of Materials Science and Engineering, Nagoya Institute of Technology

Bibliographic Information

Other Title
  • ケイ酸カルシウムにおけるマルテンサイト変態の現象論的解析
  • Phenomenological Analysis of Martensitic Transformation in Dicalcium Silicate

Search this article

Abstract

Matrix algebra analysis of martensitic transformations has been employed for the determination of habit planes and shape deformations of Ca2SiO4 upon β-to-α′L transformation during heating. The cell parameters of both the parent β and product α′L-phases at the transformation temperature (710°C) have been found from extrapolation of the regression of their cell-parameter variations. The analysis indicates that one of the principal distortions (=cα′L/3bβ) of the lattice deformation is equal to unity, and the other principal distortions are larger and smaller than unity. This satisfies the requirement for the formation of completely coherent interfaces between the two phases, which are almost parallel to either (100)β or (001)β. Because the transformation involves a very small volumetric expansion of 0.3%, the strain accommodation would be almost completed. Both the complete coherency at the interphase boundaries and the effective strain accommodation probably lead to the thermoelasticity of the transformation, in accord with a previous study for doped Ca2SiO4.

Journal

Citations (4)*help

See more

References(13)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top