Synthesis of a new CaYVSnO yellow pigment

✍ Scribed by C. Gargori; R. Galindo; S. Cerro; A. García; M. Llusar; G. Monrós

• Publisher: Elsevier
• Year: 2010
• Tongue: English
• Weight: 401 KB
• Volume: 8
• Category: Article
• ISSN: 1875-3892
• DOI: 10.1016/j.phpro.2010.10.016

✦ Synopsis

In this communication a new ceramic pigment based on codoping pyrochlore Y 2 Sn 2 O 7 with V 5+ and Ca 2+ has been obtained. The limit of solid solution of Ca x Y 2 x V x Sn 2 x O 7 is around x=0.16. Pigment becomes stable in double firing glazes (CIEL*a*b*=78/5/35 5% w. enamelled) but unstable in single firing glazes such as based on CaO-ZnO-SiO 2 chemical system. Using unconventional methods of synthesis the reactivity of the system and final pigmenting power of the powder is enhanced in the case of ammonia coprecipitation of a mixture of nitrates and tin chloride.