Nickel oxide is light green or black powder, so it first used for glaze formulation of ceramic colored,while, nickel oxide can change color because of oxidation in the process of Calcination, so with a high content of nickel oxide glaze porcelain will change in the sintering process, and is difficult to achieve the desired color.Besides,for increasing the affinity between the metal surface and the glaze,NiO also be used in the producing of enamel .
Adding NiO make glass change color,at the same time, change the structure and properties of glass, weaken the glass absorption on the UV and increase the glass absorption on the visible light, such as Wood glass used to manufacturing filtration UV lamps commonly, that is to say when we adding nickel oxide 9% in barium glass, visible light could be absorded and emit light almost are long wave with 320-400 nm wavelength, which can be used to check fungal infect .
