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Lecturer(s)
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Šulcová Petra, prof. Ing. Ph.D.
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Course content
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Physical-chemical properties of powdery substances. Surface properties of powdery substances, significance of the surface electrical charge on particles of powdery substances. Surface modifications of pigment particles. Optical properties of pigments. Structure of spinels, types 2-3, 2-4, and 6-1. Mechanisms of their formation. Non-stoichiometry of pigments and its reasons. Real structure, lattice defects. Diffusion in powdery substances: possible mechanisms. Significance of diffusion for reactions in powdery substances Methods of preparation of pigments. Methods of precipitation of sparingly soluble salts. Interpretation of precipitation diagram. Secondary changes occurring in the phase being precipitated Ideas about mechanisms of reactions in solid phase. Controlling processes. Possibility of acceleration of solid phase reactions. Topochemical reaction, topotaxy Problems of powdery polycrystalline substances as raw materials for preparation of pigments. Significance of reactivity of raw materials. Basic principles of preparation of coloured high-temperature pigments. Classification and a survey of basic ceramic pigments Applications of pigments to glazes and enamels. Classification of glazes. Raw materials for production of glazes. Innovative surfaces for sanitary ceramics
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing)
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Learning outcomes
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Students make the acquaintance of problems concerning inorganic pigments, their properties and production including theoretical principles of their synthesis.
Students receive information about effect of different methods of pigment preparation, possibilities of increase of reactivity of raw materials and mechanisms used for their synthesis. The students can characterize physical-chemical, application and technology properties of inorganic pigments and discuss their influence on quality of pigments.
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Prerequisites
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unspecified
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Assessment methods and criteria
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Oral examination
Oral examination.
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Recommended literature
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Buxbaum G. Industrial Inorganic Pigments. Wiley-VCH, Weinheim, 1993.
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Fujishima A., Hashimoto K., Watanabe T. TiO2 fotokatalýza, základy a aplikace. Silikátový svaz, Praha, 2002.
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Gulevič O., Kouba V. Technická keramika, glazury a keramické barvy. SNTL, Praha, 1969.
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Hlaváč J. Základy technologie silikátů. SNTL, Praha, 1988.
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Chládek J., Mikulecký J., Sova L., Truhlařovský Z. Dekorace užitkového porcelánu. SNTL Praha, 1984.
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Šolc Z., Trojan M. Speciální anorganické pigmenty I.. VŠCHT Pardubice, 1987.
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Šulcová P. Vlastnosti anorganických pigmentů a metody jejich hodnocení. Univerzita Pardubice, 2008.
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Voluckij S.S. Kurz koloidní chemie. SNTL, Praha, 1984.
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