Laser diffraction particle size analysis of metallic powders : a comparison of wet and dry measurements
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2007
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INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 6th
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Resumo
Good powder dispersion is the main requirement for achieving reproducible and
accurate measurements in particle size distribution analysis. To do so most dispersion
techniques are carried out in liquid medium, like water or organic solvents. The use of
liquids could be restrictive when surface activities (e.g. oxidation) or large/massive
particles may cause problems for a good dispersion to be accomplished. To overcome
these difficulties a dry measurement would be a better alternative. Here dry and wet
laser diffraction analysis were compared doing measurements on iron, cooper,
aluminum, and nickel powders with different particle shapes characterized by scanning
electron microscopy. Single equipment (Beckman coulter LS13320) was used for wet
and dry analysis. Very similar results were achieved by both methods, meaning that a
good dispersion was attained in dry laser diffraction with these powders and equipment.
Dry laser diffraction analysis was also shown to be more reproducible and faster.
Como referenciar
PAPINI, C.J.; LEAL NETO, R.M. Laser diffraction particle size analysis of metallic powders : a comparison of wet and dry measurements. In: INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 6th, November 07-10, 2007, Búzios, RJ. Abstract... p. 13-13. Disponível em: http://repositorio.ipen.br/handle/123456789/27482. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.