Preparation and characterization of a stable nano-sized Zn x Co1–x Al2O4 ink for glass decoration by ink-jet printing

Abstract

：A stable inorganic glass ink was prepared by mechanically grinding a mixture of a blue pigment (CoAl 2 O 4) and low-melting-point glass powders in a specific organic solvent, which possesses a lower annealing temperature compared with ceramic ink. The CoAl 2 O 4 was synthesized by solid-state reaction and the best sintering temperature should be at 1300 ºC or above according to the observation of XRD. CoAl 2 O 4 shows blue color both in a powder form and coating. The average particle size of pigments and glass powders mixture decreases with the increase of glass powders and milling time. SEM cross-sectional