Fe-Cr Siyah Seramik Pigment Üretiminde Ferrokrom Kullanımı

Yıl 2010, Cilt: 23 Sayı: 2, 53 - 65, 31.12.2010

Belgin Tanışan Servet Turan

Öz

Bu çalışmada, saf oksitlere göre daha ucuz hammaddeler kullanarak porselen karo bünyeleri için siyah Fe-Cr hematit pigmentlerin üretimi ve karakterizasyonu amaçlanmıştır. Hematit ve ferrokrom ile üretilen pigmentlerin L*a*b* renk değerlerine; başlangıç hammaddelerinin tane boyutu, mineralleştirici ilavesi ve kademeli kalsinasyonun etkisi incelenmiştir. Üretilen pigmentlerin renkleri spektrofotometre ile ölçülerek L*a*b* olarak ifade edilmiştir. İnce tane boyutuna sahip başlangıç hammaddeleri ve mineralleştirici ilavesi ile kademeli olarak kalsine edilerek üretilen pigmentlerin renk parametrelerinin, ticari olarak kullanılan siyah pigmentlerle oldukça benzer olduğu tespit edilmiştir.

Anahtar Kelimeler

Hematit, Ferrokrom, Siyah pigment

Use Of Ferrochrome In Fe-Cr Black Ceramic Pigment Production

Öz

In this study, production and charecrarization of Fe-Cr hematite black pigments for porcelain tile bodies were attempted by using cheaper raw materials as compared to pure oxides. Effect of raw material particle size, mineralizers and stepwise calcination on pigments L*a*b* values that produced with hematite and ferrochrome were investigated. The obtained colour values were reported as L*a*b values, measured by a spectrophotometer. When fine particle size raw materials with mineralizers were used and calcined in a stepwise manner, black ceramic pigment with very similar colour parameters to commercial black pigments was produced.

Anahtar Kelimeler

Hematite, Ferrochrome, Black pigment

Kaynakça

• [1] T. Manfredini and F. Bondioli, “Inorganic pigments”, Ceramic Industry, Vol.150, No.2, pp.53-58, 2000.
• [2] R.A. Eppler and D.R. Eppler, “Glazes and Glass Coatings”, First Edn, American Ceramic Society, Westerville, 2000.
• [3] J. Calbo, S. Sorli, M. Llusar, M.A. Tena and G. Monros, “Minimisation of toxicity in nickel ferrite black pigment”, British Ceramic Transactions, Vol.103, pp.3-9, 2004.
• [4] J. Calbo, M.A. Tena, G. Monros, M. Llusar, R. Galindo and J.A. Badenes, “Flux agent effect on nickel ferrite black pigment”, Am. Ceram. Soc. Bull., Vol.84, No.12, pp.10–14, 2005.
• [5] A. Escardino, S. Mestre, A. Barba, V. Beltran and A. Blasco, “Synthesis mechanism of an iron-chromium ceramic pigment”, J. Am. Ceram. Soc., Vol.83, No.1, pp.29–32, 2000.
• [6] A. Escardino, S. Mestre, A. Barba, C. Feliu, A. Blasco and V. Beltran, “Kinetic study of black (Fe,Cr)2O3 pigment synthesis reaction: influence of composition and particle size”, British Ceramic Transactions, Vol.102, No.6, pp.251-256, 2003.
• [7] A. Escardino, S. Mestre, A. Barba and V. Beltran, “Kinetic study of black Fe2O3-Cr2O3 pigment synthesis: influence of synthesis time and temperature”, J. Am. Ceram. Soc., Vol.86, No.6, pp.945-950, 2003.
• [8] A. Escardino, S. Mestre, A. Barba, M. Monzo, A. Blasco and V. Beltran, “Colorimetric study of black (Fe,Cr)2O3 pigment synthesis reaction: relation between chromatic coordinates and synthesis conditions, British Ceramic Transactions, Vol.102, No.6, pp. 247-250, 2003.
• [9] W.G. Loucka, M.E. Gall and J.D. Thomas, Blue shade Fe-Cr black pigment, US. Patent No: 6235106, 2001.
• [10] H. Weber, Black Fe-Cr oxide pigment composition, US. Patent No: 3561989, 1971.
• [11] B.Tanisan and S. Turan, “Development of black ceramic pigments from chromite and hematite mixtures”, I. International Ceramic, Glass, Porcelain Enamel, Glaze and Pigment Congress, 12-14 October 2009, Eskisehir, Proceeding Books, pp.1127-1134.
• [12] E. Ozel, I. Kücük and S. Turan, “Synthesis of an iron-chromium ceramic pigment by using limonite and chromite mixtures”, Key Eng. Mater., Vol.206-213, pp.1227-1235, 2002.
• [13] S. Turan, Y. Inceefe and E. Ozel, “Production and characterisation of pigments produced using grinding waste from cast iron foundry”, Key Eng. Mater., Vol.264-268, pp.2473-2476, 2004.
• [14] E. Ozel, S. Turan, S. Çoruh and O.N. Ergun,“Production of brown and black pigments by using flotation waste from copper slag”, Waste Manage. Res., Vol. 24, pp.125–133, 2006.
• [15] G. Costa, V.P. Della, M.J. Ribeiro, A.P.N. Oliveria, G. Monros and J.A. Labrincha, “Synthesis of black ceramic pigments from secondary raw materials”, Dyes and Pigments, Vol.77, pp.137–144, 2008.
• [16] G. Costa, V.P. Della, M.J. Ribeiro and J.A. Labrincha, “Forming black spinel pigment from industrial sludge”, Am. Ceram. Soc. Bull., Vol.87, No.7, pp.9101–9107, 2008.
• [17] S. Geng and J. Zhu, “Promising alloys for intermediate-temperature solid oxide fuel cell interconnect aplication”, Journal of Power Sources, Vol.160, No.2, pp.1009-1016, 2006.