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Difference between revisions of "Powder"

From Online Dictionary of Crystallography

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A '''powder''' is defined in EN-1330-11 (2007) as a ''large number of crystallites and/or particles'' (''i''.''e''. grains, agglomerates or aggregates; crystalline or non-crystalline) ''irrespective of any adhesion between them'' and thus can be a loose powder (in the sense of common language), a solid block, a thin film or even a liquid. An ideal powder is represented by a virtually unlimited number of sufficiently sized, randomly oriented and spherical crystallites.
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A '''powder''' is defined in EN 1330-11 (British Standards Institution, 2007) as a ''large number of crystallites and/or particles'' (''i''.''e''. grains, agglomerates or aggregates; crystalline or non-crystalline) ''irrespective of any adhesion between them'' and thus can be a loose powder (in the sense of common language), a solid block, a thin film or even a liquid. An ideal powder is represented by a virtually unlimited number of sufficiently sized, randomly oriented and spherical crystallites.
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==Reference==
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*British Standards Institution (2007) BS EN 1330-11:2007 ''Non-destructive testing. Terminology. Terms used in X-ray diffraction from polycrystalline and amorphous materials''. London: BSI.
  
 
[[Category: X-rays]]
 
[[Category: X-rays]]

Latest revision as of 15:18, 14 July 2021

مسحوق (Ar). Poudre (Fr). Pulver (Ge). Polvere (It). 粉末 (Ja). Polvo (Sp).


A powder is defined in EN 1330-11 (British Standards Institution, 2007) as a large number of crystallites and/or particles (i.e. grains, agglomerates or aggregates; crystalline or non-crystalline) irrespective of any adhesion between them and thus can be a loose powder (in the sense of common language), a solid block, a thin film or even a liquid. An ideal powder is represented by a virtually unlimited number of sufficiently sized, randomly oriented and spherical crystallites.

Reference

  • British Standards Institution (2007) BS EN 1330-11:2007 Non-destructive testing. Terminology. Terms used in X-ray diffraction from polycrystalline and amorphous materials. London: BSI.