Study of the formation of tungsten powder by hydrogen reduction of ammonium paratungstate and stereometric analyses of the powder texture

The micromorphology of tungsten particles obtained by means of the annealing and hydrogen reduction of ammonium paratungstate (APT) has been finely analyzed during different formation stages using scanning electron microscopy (SEM). The intermediate tungsten oxides appearing during the different rea...

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Bibliographic Details
Published inMaterials research express Vol. 6; no. 12; pp. 1265 - 1273
Main Authors Sadeghi, Mohammad, Rezaee, Sahar, Arman, Ali, lu, tefan, Luna, Carlos, Shakoury, Reza
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.12.2019
Subjects
3D surface microtexture
ammonium paratungstate (APT)
SEM
stereometric analysis
tungsten powder
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Summary:The micromorphology of tungsten particles obtained by means of the annealing and hydrogen reduction of ammonium paratungstate (APT) has been finely analyzed during different formation stages using scanning electron microscopy (SEM). The intermediate tungsten oxides appearing during the different reactions were identified, and their particle morphologies were analyzed. The surface texture and texture isotropy of the final tungsten powder were investigated utilizing different methodologies. The surface segmentation using the watershed segmentation algorithm revealed fractal features.
Bibliography:MRX-118558.R1
ISSN:2053-1591
2053-1591
DOI:10.1088/2053-1591/ab6763