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9.2

Synthesis of materials at high temperatures

Aims: To give an overview of the most important synthesis routes to materials at high temperature.

Topic description and teaching suggestions : There are many synthesis routes carried out at high and ultrahigh temperature to obtain inorganic materials in various forms: polycrystalline, monocrystalline, amorphous, thin films etc. Their description may be found in textbooks of solid state chemistry at various levels. In this syllabus we suggest to include for teaching and describe in the following a few peculiar methods of materials preparation where high-temperature chemical processes are involved. For a compact and effective overview of synthesis methods, see the following textbook:

A.R. West, “Basic solid state chemistry” second edition, John Wiley & Sons, New York, 1999, Chapter 9

Consult also:

J.I.Gerstein and F.W. Smith, “The physics and chemistry of materials”, Wiley Interscience, New York, 2001; Chapter 21 “Synthesis and processing of materials” and relevant topics at Web site W21 (ftp://wiley.com/public/sci_tech_med/materials)

9.2.a) Synthesis methods by physical and chemical deposition: vapour phase

transport and deposition and chemical vapour deposition processes Aims: To give the fundamentals of theory and practice of synthetic processes, including

modelling and process simulation.. Topic description and teaching suggestions: The CVD (Chemical Vapour Deposition) process technique enables the preparation of coatings of different types with possibility of uniform thickness and low porosity, even on substrates of complicated shape. CVD is employed in many thin film applications (for instance

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