Using the ceramics of the BeO - TiO 2 - C system as an example, methodological aspects of the use of X-ray photoelectron spectroscopy for studying the chemical composition, charge state, and electronic parameters of the surface of complex oxide ceramics containing regions with different electronic conductivity are discussed. The issues of surface preparation of ceramics using ionic Ar + bombardment and mechanical cleaning with a diamond scraper in vacuum are considered. Il. 6, bibliography: 8 titles.
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