Abstract
| Original language | English |
|---|---|
| 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 |
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Keywords
- nano-sized WC-Co synthesis
- spray drying
- water soluble precursors
- ProperPart
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Chemical synthesis of WC-Co from water-soluble precursors : the effect of carbon and cobalt additions to WC synthesis. / Kanerva, Ulla (Corresponding Author); Karhu, Marjaana; Lagerbom, Juha; Kronlöf, Anna; Honkanen, Mari; Turunen, Erja; Laitinen, Tarja.
In: International Journal of Refractory Metals and Hard Materials, Vol. 56, 2016, p. 69-75.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Chemical synthesis of WC-Co from water-soluble precursors : the effect of carbon and cobalt additions to WC synthesis
AU - Kanerva, Ulla
AU - Karhu, Marjaana
AU - Lagerbom, Juha
AU - Kronlöf, Anna
AU - Honkanen, Mari
AU - Turunen, Erja
AU - Laitinen, Tarja
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
KW - nano-sized WC-Co synthesis
KW - spray drying
KW - water soluble precursors
KW - ProperPart
U2 - 10.1016/j.ijrmhm.2015.11.014
DO - 10.1016/j.ijrmhm.2015.11.014
M3 - Article
VL - 56
SP - 69
EP - 75
JO - International Journal of Refractory Metals and Hard Materials
JF - International Journal of Refractory Metals and Hard Materials
SN - 0958-0611
ER -