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3115445 
Journal Article 
Preparation and chromatic properties of C@ZrSiO4 inclusion pigment via non-hydrolytic sol gel method 
Jiang, W; Xu, X; Chen, T; Liu, J; Zhang, X 
2015 
Yes 
Dyes and Pigments
ISSN: 0143-7208
EISSN: 1873-3743 
114 
C 
55-59 
English 
WOS:000348953400008 
A zirconium silicate coated carbon (C@ZrSiO4) black pigment was prepared via a non-hydrolytic sal gel (NHSG) process. Phenolic resin was carbonized at high temperature in N-2 atmosphere and dense ZrSiO4 was coated on its surface to prevent it to be oxidized for the glaze application. The structure and morphology of samples were studied by using X-ray diffraction (XRD) and transmission electron microscopy (TEM), respectively. The chromatic value of the pigments was characterized by the CIE color system. XRD results reveal that the ZrSiO4 phase can be obtained at 650 degrees C and degree of crystallinity increases with increasing the calcination temperature. The darkness of the samples prepared by different solvents was decrease in sequence of isopropyl alcohol, alcohol and benzene, which is consistent with their solubility to phenolic resin. After calcining at 900 degrees C for 2 h,. the small in-situ carbon was tightly coated by zirconium silicate to form the inclusion pigment. This pigment exhibits excellent chromatic value (L* = 42.01) and good stability in transparent glaze, which indicates it is a potential candidate for ceramic pigments application. (C) 2014 Elsevier Ltd. All rights reserved. 
Inclusion pigment; Non-hydrolytic sol-gel process; Phenolic resin; Coating; Carbon; Zirconium silicate