| Popis: |
Cobalt aluminate () is a highly stable pigment with excellent resistance to light, weather, etc., which has resulted in widespread use as a ceramic pigment. Due to the unique optical characteristics, is generally used as a coloring agent to decorate porcelain products, glass, paints and plastics. Here, pigments were synthesized by polymerized complex method and solid state reaction. Then pigment were grinded using the attrition milling with 1 mm size zirconia ball for 3 hours. The attrition milling process was performed at the constant speed of 800 rpm and ball to powder weight ratio (BPR) was 100 : 1. The characteristics of synthesized pigment were analyzed by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), particle size analyser (PSA) and CIE . The XRD patterns of show single phase spinel structure. The particle size of measured by FE-SEM, TEM and PSA analysis was in the range of 100~200 nm. The blue color of obtained pigments could be confirmed through CIE measurement. |
