Inorganic Solid Phases

Sr0.375Si11.25Al0.75N16, Sr-α-SiAlON (Sr0.188Al0.375Si5.625N8) Crystal Structure

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General Information

  • Phase Label(s): Sr0.188Al0.375Si5.625N8
  • Structure Class(es): –
  • Classification by Properties: –
  • Mineral Name(s): –
  • Pearson Symbol: hP30
  • Space Group: 159
  • Phase Prototype: Nd0.17(Al0.19Si0.81)6(N0.92O0.08)8
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Japan, Hyogo, Japan Synchrotron Radiation Research Institute, SPring-8, BL15XU (determination of structural parameters), X-rays, synchrotron; λ = 0.065297 nm (determination of cell and structural parameters)
  • Phase Class(es): –
  • Compound Class(es): nitride
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, multiphase, RP = 0.0089; wRP = 0.0131; RB = 0.0485
  • Sample Detail(s): sample prepared from α-Si3N4, SrSi2, SrO, AlN, Eu2O3, trace amounts of SrSi6N8, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Sr0.188Al0.375Si5.625N8
  • Alphabetic Formula: Al0.375N8Si5.625Sr0.188
  • Published Formula: Sr0.375Si11.25Al0.75N16, Sr-α-SiAlON
  • Refined Formula: Al0.83N8Si5.17Sr0.14
  • Wyckoff Sequence: 159,c4b2a
  • Z Formula Units: 2
  • Density: ρ = 3.31 Mg·m−3
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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
B [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1225339

  • 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)

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