TY - JOUR
T1 - Electroless copper plating of tungsten powders and preparation of WCu20 composites by microwave sintering
AU - Wang, Langlang
AU - Xu, Lei
AU - Srinivasakannan, C.
AU - Koppala, Sivasankar
AU - Han, Zhaohui
AU - Xia, Hongying
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 51204081 ), and by China Scholarship Council (NO. 2011853521 ), and by Yunnan Provincial Science and Technology Innovation Talents scheme - Technological Leading Talent of China (Nos. 2013HA002 ), and by Applied Basic Research Project of Yunnan Province of China (Grant Nos. 2013FZ008 ), and by Yunnan Provincial Department of Education Research Fund of China (Grant Nos. 2013Z118 ), and by Scientific Research Fund of Kunming University of Science and Technology (Grant Nos. KKZ3201752046 ).
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/10/5
Y1 - 2018/10/5
N2 - In the present work, tungsten powders coated with copper by electroless plating method, and preparation of WCu20 composites by microwave sintering with copper-coated tungsten powder as raw material. The result shows that at the situation of a temperature of 60 °C, pH value of 12–13, with formaldehyde solution (53 ml/L) as reducing agent, iron potassium cyanide solution (0.3 g/L) as stabilizer, tartaric acid potassium sodium (15 g/L) and EDTA-2Na (19 g/L) mixture solution as compound complexing agent, the thickness of surface coating was relatively uniform, which is around 0.6–1.1 μm. The WCu20 composites were fabricated by microwave sintering with copper-coated tungsten powder as raw material shows uniform microstructure distribution, relatively high density. The hardness of the WCu20 composites increased with the temperature. While the temperature of sintering at 1100 °C for 1 h, the density could be up to 15.22 g/cm3, relative density was 97.13%, which shows better properties.
AB - In the present work, tungsten powders coated with copper by electroless plating method, and preparation of WCu20 composites by microwave sintering with copper-coated tungsten powder as raw material. The result shows that at the situation of a temperature of 60 °C, pH value of 12–13, with formaldehyde solution (53 ml/L) as reducing agent, iron potassium cyanide solution (0.3 g/L) as stabilizer, tartaric acid potassium sodium (15 g/L) and EDTA-2Na (19 g/L) mixture solution as compound complexing agent, the thickness of surface coating was relatively uniform, which is around 0.6–1.1 μm. The WCu20 composites were fabricated by microwave sintering with copper-coated tungsten powder as raw material shows uniform microstructure distribution, relatively high density. The hardness of the WCu20 composites increased with the temperature. While the temperature of sintering at 1100 °C for 1 h, the density could be up to 15.22 g/cm3, relative density was 97.13%, which shows better properties.
KW - Copper-coated tungsten powders
KW - Electroless copper plating
KW - Microstructure
KW - Microwave sintering
KW - Tungsten-copper composites
UR - http://www.scopus.com/inward/record.url?scp=85048222397&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2018.06.061
DO - 10.1016/j.jallcom.2018.06.061
M3 - Article
AN - SCOPUS:85048222397
SN - 0925-8388
VL - 764
SP - 177
EP - 185
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -