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Synthesis and study of a new class of red pigments based on perovskite YAlO3 structure

Shirpour, M ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ceramint.2006.04.023
  3. Publisher: 2007
  4. Abstract:
  5. A red pigment has been prepared by substituting chromium ions in aluminum ion sites in YAlO3 perovskite structure. In a first step, effect of various mineralizers on YAlO3 formation has been investigated, which resulted in decrease of formation temperature down to 1400 °C. In the next step, a red pigment corresponding to YAl1-yCryO3 (y = 0.05), has been prepared by heating a mixture containing Y2O3, Al2O3 and Cr2O3 at 1500 °C for 6 h. Later, effect of the doped chromium amount on the pigment redness (a*) has been studied. The highest redness has been obtained when y was 0.04(YAl1-yCryO3). Application of the prepared red pigment in low and high temperature glazes, demonstrated its high chemical and thermal stability. © 2006
  6. Keywords:
  7. Aluminum compounds ; Chromium compounds ; High temperature effects ; Ions ; Oxides ; Perovskite ; Synthesis (chemical) ; Thermodynamic stability ; Aluminum ion ; Chromium(III) oxide ; Red pigment ; Yttrium aluminate ; Pigments
  8. Source: Ceramics International ; Volume 33, Issue 8 , December , 2007 , Pages 1427-1433 ; 02728842 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0272884206002306