Inorganic Solid Phases

β-Al4.5FeSi (Fe2Al9Si2) Crystal Structure

General Information

  • Phase Label(s): Fe2Al9Si2
  • Structure Class(es):
  • Classification by Properties: metal
  • Mineral Name(s):
  • Pearson Symbol: mS52
  • Space Group: 15
  • Phase Prototype: Fe2(Al0.82Si0.18)11
  • Measurement Detail(s): automatic diffractometer; 25 (determination of cell parameters), automatic diffractometer; Nicolet P3F (determination of structural parameters), X-rays, Mo Kα; λ = 0.071069 nm (determination of cell and structural parameters), T = 293 K (determination of structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicide
  • Interpretation Detail(s): average structure determined, full-matrix least-squares refinement on F; 736 reflections; I > 5σ(I), R = 0.039; wR = 0.049
  • Sample Detail(s): sample prepared from Al, Fe, Si, twinned crystal (determination of cell parameters), twinned crystal, 0.07×0.2×0.3 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Fe2Al9Si2
  • Alphabetic Formula: Al9Fe2Si2
  • Published Formula: β-Al4.5FeSi
  • Refined Formula: Al9Fe2Si2
  • Wyckoff Sequence: 15,f6c
  • Z Formula Units: 4
  • Density: ρ = 3.45 Mg·m−3

Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Displacement Parameters

Isotropic

Site
Published
U [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1251555

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    SpringerMaterials Release 2016.

    Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS

    All Rights Reserved. Version 2016.10.

    Project Coordinator: Shuichi Iwata

    Section-Editor: Karin Cenzual (Crystal Structures)

  • Cite this content

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