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:: Volume 6, Issue 4 (3-2018) ::
2018, 6(4): 1-12 Back to browse issues page
Effect the amount of C2H8N2 complexing agent on coating of B4C powder by nickel-boron electroless plating method
Abstract:   (240 Views)
Boron carbide due to properties such as high hardness, high Young's modulus and low density is highly regarded; however its application is limited because of unsuitable sinterability, low fracture toughness and the low wettability of it with melt of most metals. In this study, the surface of B4C is coated with electroless method and the effect of ethylene diamine (C2H8N2) complexing agent at temperatures of 75 and 85 °C and a pH of 13 is examined. Scanning electron microscope equipped with EDS analyzer for investigation of microstructure and morphology of coated B4C powder and X-ray diffraction to determine the composition and phases were used. The results indicate that in the electroless coating process, the amount of the C2H8N2 complexing agent in the plating bath has significant effect on the quantity of coating and uniformity of it on the surface of the B4C particles. By increasing the C2H8N2 complexing agent in the electroless plating bath in each of the constant temperatures of 75 and 85 °C, the nickel coating is reduced. The phase analysis of coated B4C particles in the electroless nickel plating bath with different amounts of the C2H8N2 complexing agent as compared to nickel salt at a temperature of 85 °C showed that in all four composition of complexing agent, B4C and Ni phases are present. However, in ratios of 1: 1 and 1: 3 of C2H8N2 complexing agent to nickel salt, Ni(OH)2 phase is also visible.
Keywords: B4C, complexing agent, nickel-boron electroless
Full-Text [PDF 1373 kb]   (89 Downloads)    
Type of Study: Research | Subject: Special
Received: 2018/06/18 | Accepted: 2018/06/18 | Published: 2018/06/18
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Effect the amount of C2H8N2 complexing agent on coating of B4C powder by nickel-boron electroless plating method. Iranian Journal of Ceramic Science & Engineering. 2018; 6 (4) :1-12
URL: http://ijcse.ir/article-1-550-en.html


Volume 6, Issue 4 (3-2018) Back to browse issues page
نشریه علم و مهندسی سرامیک Iranian Journal of Ceramic Science & Engineering
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