Preparation and Characterization of Nitride Ceramic Thermal Conductive Fillers Decorated with Metal Nanoparticles
Nitride thermal conductive composite fillers were prepared by the mix and heat method.It's an environmentally friendly preparation method that can be mass-produced and does not use solvents.The loading of different metal nanoparticles(nickel,cobalt and silver)onto nitrides(aluminum nitride,boron nitride)and the amount of loading were investigated by scanning electron microscopy,X-ray diffractometer and TCI thermal conductivity meter,and the effect of composite ceramic thermally conductive filler on the thermal conductivity of polyvinyl alcohol-based composite thermal conductive film was examined.The results show that the metal nanoparticles were successfully loaded onto the nitrides without changing the crystal structure of the nitrides.And the size of the loaded metal particles increase with the increase of acetate content.In addition,the ceramic thermally conductive filler loaded with metal particles can effectively improve the thermal conductivity of polyvinyl alcohol-based composite thermally conductive film,and the thermal conductivity of Ag/AlN-0.05 thermally conductive film can reach 0.752 W/(m·K).
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