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Transition of W 2 C to WC during carburization of tungsten metal powder
- Source :
- International Journal of Refractory Metals and Hard Materials. 72:141-148
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- The properties of cemented carbides are heavily influenced by the tungsten carbide (WC) powders used in its production. Overall particle size of the WC is most influential, however, in the medium- and coarse-grained tungsten carbide particle range the internal crystallographic structure of the polycrystalline WC is important as well. To investigate the crystal formation of WC and it's resulting structure, selected crystal growth experiments were performed. The transition of ditungsten carbide (W2C) into tungsten carbide (WC) during carburization of tungsten powder was studied. The experimental strategy was to obtain W2C along with WC within the growing carbide particles. Electron microscopy methods were utilized to study the growth mechanism during conversion of W2C into WC, and to detect the existence of preferred crystallographic orientations during the transition process.
- Subjects :
- Materials science
020502 materials
Metallurgy
chemistry.chemical_element
Crystal growth
02 engineering and technology
Tungsten
021001 nanoscience & nanotechnology
Carbide
chemistry.chemical_compound
0205 materials engineering
chemistry
Tungsten carbide
Metal powder
Crystallite
Particle size
0210 nano-technology
Electron backscatter diffraction
Subjects
Details
- ISSN :
- 02634368
- Volume :
- 72
- Database :
- OpenAIRE
- Journal :
- International Journal of Refractory Metals and Hard Materials
- Accession number :
- edsair.doi...........1a610a8f6bec01167ad6846fb5acbd40