2005
DOI: 10.1590/s0366-69132005000300021
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Abstract: INTRODUÇÃOZirconita (ZrSiO 4 ) é um mineral termicamente estável. Processos de alto custo e de alta energia são necessários para que seja reduzido [1,2]. Por isso, é muito utilizado como matriz para pigmentos cerâmicos. A formação da fase ZrSiO 4 por meio de métodos químicos ocorre por meio de reação entre a fase tetragonal da zircônia (t-ZrO 2 ) e a fase amorfa da sílica (SiO 2 ) [1][2][3][4][5][6].A obtenção de pigmentos cerâmicos estáveis a altas temperaturas é resultado da utilização de redes cristalinas e… Show more

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Cited by 3 publications
(4 citation statements)
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“…18 Cava et al showed that the variation of SiO 2 /ZrO 2 ratios led to formation of solid solutions of isomorphic SiO 2 -ZrO 2 substitution with different structure. 10 According to the XPS data, the new compound was ZrSiO 4 with a layer of SiO 2 on the surface. 10 Aer the impregnation with cobalt nitrate solution, the Co 2+ cations were stabilized in the tetrahedral (in the positions of Si 4+ in SiO 2 ) and octahedral (in positions of Zr 4+ in ZrSiO 4 ) positions.…”
Section: Discussionmentioning
confidence: 99%
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“…18 Cava et al showed that the variation of SiO 2 /ZrO 2 ratios led to formation of solid solutions of isomorphic SiO 2 -ZrO 2 substitution with different structure. 10 According to the XPS data, the new compound was ZrSiO 4 with a layer of SiO 2 on the surface. 10 Aer the impregnation with cobalt nitrate solution, the Co 2+ cations were stabilized in the tetrahedral (in the positions of Si 4+ in SiO 2 ) and octahedral (in positions of Zr 4+ in ZrSiO 4 ) positions.…”
Section: Discussionmentioning
confidence: 99%
“…10 According to the XPS data, the new compound was ZrSiO 4 with a layer of SiO 2 on the surface. 10 Aer the impregnation with cobalt nitrate solution, the Co 2+ cations were stabilized in the tetrahedral (in the positions of Si 4+ in SiO 2 ) and octahedral (in positions of Zr 4+ in ZrSiO 4 ) positions. 10 In our case, the DDPA study showed that the framework of Zr-Si-FG and Co/Zr-Si-FG has the parametric formula of Zr 0.074AE0.012 Si 1 and Zr 0.074AE0.005 Si 1 , respectively, indicating that zirconium is distributed statistically in the bulk of glass ber and that the solid solution of ZrSiO 4 is absent.…”
Section: Discussionmentioning
confidence: 99%
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“…A proporção entre os minerais presentes nas massas cerâmicas, junto às condições de processamento infl uenciam diretamente as propriedades do produto acabado. As misturas, porém, mantêm a necessidade de permitir a formação de fases cristalinas compostas de silicatos e aluminossilicatos de cálcio e/ou magnésio durante a sinterização [5]. A formação destas fases, precedida de intensa desgaseifi cação, caracteriza a produção de azulejo sinterizado em uma única queima.…”
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