Abstract
The chemical synthesis of WC-Co from water-soluble
precursors and the effect of carbon content and cobalt
addition were studied. Ammonium metatungstate AMT as
tungsten source, glycine as a carbon source and cobalt
acetate Co(C2H3O2)2 as a cobalt source was dissolved in
water and spray-dried, and thermal synthesis in Ar
atmosphere was performed. In order to understand the
effects of carbon content and cobalt addition on
synthesis steps, and the chemical and phase structure,
thermogravimetry (TGA) with Differential Scanning
Calorimetry (DCS) and mass spectrometry was used together
with X-ray diffractometry and chemical analysis. The
results reveal that carbon content mainly affected
reduction temperatures and cobalt addition to reaction
route and solid state synthesis temperature. This
presented manufacturing route with water-soluble raw
materials was a potential way of preparing nanostructural
WC-Co composition with the correct phase structure and
chemical composition.
Original language | English |
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Pages (from-to) | 69-75 |
Journal | International Journal of Refractory Metals and Hard Materials |
Volume | 56 |
DOIs | |
Publication status | Published - 2016 |
MoE publication type | A1 Journal article-refereed |
Keywords
- nano-sized WC-Co synthesis
- spray drying
- water soluble precursors
- ProperPart