Inorganic Solid Phases

Si0.8(1)Al3.2(1)O2.2(1)N2.8(1); Si3−xAl1+xOxN5−x (x~ 2.2) (Al3.2Si0.8N2.8O2.2) Crystal Structure

General Information

  • Phase Label(s): Al3.2Si0.8N2.8O2.2
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: hP24
  • Space Group: 194
  • Phase Prototype: (Al0.8Si0.2)4(N0.56O0.44)5
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Rigaku SmartLab (determination of structural parameters), X-rays, Cu Kα1 (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): nitride, oxide
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, multiphase, RP = 0.0365; wRP = 0.0503; RB = 0.0430
  • Sample Detail(s): sample prepared from Si3N4, Al2O3, AlN, energy-dispersive X-ray analysis; amounts of α-Al2O3 (14.7 mol.%), 15R-SiAlON (4.7 mol.%), β-SiAlON (2.9 mol.%), powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Al3.2Si0.8N2.8O2.2
  • Alphabetic Formula: Al3.2N2.8O2.2Si0.8
  • Published Formula: Si0.8(1)Al3.2(1)O2.2(1)N2.8(1); Si3−xAl1+xOxN5−x (x~ 2.2)
  • Refined Formula: Al3.20N2.80O2.20Si0.80
  • Wyckoff Sequence: 194,f3e2ca
  • Z Formula Units: 2
  • Density: ρ = 3.41 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_1641211

  • 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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