Abstract
Black pigment is an important pigment in the ceramic decoration. The traditional black pigment is spinel type matter containing Co, Fe or Cr elements. Carbon black is the best black pigment and is nontoxic. However, carbon black is oxygenated in the ceramic sintering process at atmosphere. Carbon black enclosed in the crystal latter of ZrSiO4 was reported. However, the content of carbon black is little which decreases the color generation. Carbon black coated with SiO2 was prepared by sol-gel method using combustion method using SiO2 sol and black ink as raw materials. The obtained black pigmenSubscript textt was characterized by XRD, TEM and ultraviolet-visible spectrophotometer. The results show that the black pigment does not change its color after calcinations at 1300 °C at atmosphere implying the carbon black is coated completely with SiO2.
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