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nanosic develops human-machine interaction and wireless interconnection solutions and chips. The company is headquartered in Tiantang Software Park, Hangzhou, China.
Investors in nanosic include Wangding Investment, GreatStar Industrial and DFJ DragonFund.
Summary
Several methods are employed to produce high-purity SiC powder, including the Acheson process, carbo-thermal reduction and combustion synthesis (VCS). The Acheson process involves mixing commercial carbon source with rice husk lime and heating the mixture at 1700-2500 deg C in order to acquire refined SiC powder. The VCS method, on the other hand, uses a continuous furnace to heat up raw materials in order to achieve SiC powder at a high temperature.
Pre-oxidation treatments can effectively improve the metal-ceramic wettability of nano-SiC particles and also induce in situ reaction between Zn matrix and the pre-oxidized nano-SiC particles, resulting in strong interface bonding between them [34].
In the present study, Zn/nano-SiC biocomposites were prepared by selective laser melting (SLM) using pre-oxidized or un-pre-oxidized nano-SiC, and their mechanical properties were evaluated. The results indicated that the Zn/nano-SiC composites with the pre-oxidized nano-SiC showed better mechanical properties, such as higher transgranular fracture strength and compressive yield strength of 171.5 MPa. This is mainly due to the strong interface bonding between the pre-oxidized nano-SiC and the Zn matrix, which was strengthened via in situ interface reaction. Furthermore, the distribution of Zn2SiO4 distributed at the interface between Zn and nano-SiC may also serve as a protection layer to hinder the penetration of corrosive solution among Zn grains, thereby improving the corrosion resistance of the biocomposites.