Superstructure in a Triclinic Phase of Tricalcium Silicate | Zendy

Urabe Kazuyori | Zendy; Shirakami Tatsuya | Zendy; Iwashima Minori | Zendy

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Superstructure in a Triclinic Phase of Tricalcium Silicate

Author(s) -

Urabe Kazuyori,

Shirakami Tatsuya,

Iwashima Minori

Publication year - 2000

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/j.1151-2916.2000.tb01363.x

Subject(s) - triclinic crystal system , superstructure , transmission electron microscopy , crystallography , streaking , silicate , phase (matter) , electron diffraction , modulation (music) , materials science , diffraction , resolution (logic) , high resolution transmission electron microscopy , electron microscope , chemistry , crystal structure , optics , physics , nanotechnology , organic chemistry , artificial intelligence , computer science , acoustics , thermodynamics

A triclinic phase of tricalcium silicate (TI) was investigated using transmission electron microscopy (TEM). Electron diffraction patterns were analyzed by introducing a subcell with the cell parameters of a = 7.081 Å, b = 7.043 Å, c = 25.230 Å, α= 89.97°, β= 90.37°, and γ= 119.44°. It was proven that the coordinates of all the reflections can be expressed to be ha *+ kb *+ lc *± m /6( a *+ 2 b *+ 2 c *), where m = 0, 1, 2, and 3. The result indicates that the structure modulation in TI is a one‐dimensional type with a structural modulation normal to (122). The modulated structure could be observed in a high‐resolution TEM image as wavy contrast streaking parallel to the plane with an interval of six times the (122) spacing.

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