apc_section_4

apc_section_4 - charge neutrality 4.6 describe the major...

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Assessment Performance Criteria Chapter 4 – Ceramics and Semiconductors Students will be able to: 4.1 list several of the major families of ceramic and semiconductor materials and cite typical applications of these 4.2 sketch an energy-band diagram for a typical insulator or semiconductor and use this to explain the major properties of ceramics: brittleness, poor electrical conductivity, and possible transparency 4.3 use energy-band diagrams to differentiate between a good insulator and a semiconductor 4.4 determine the degree of ionicity of a mixed covalent-ionic bond 4.5 for a given ceramic material, show that the stoichiometry of cations and anions leads to
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Unformatted text preview: charge neutrality. 4.6 describe the major steps associated with powder processing of ceramic materials 4.7 define glass formation in terms of viscosity and glass transition temperature (T g ) 4.8 use an Arrhrenius equation to model the temperature dependence of viscosity 4.9 describe how network modifiers such as Na 2 O and MgO affect the properties of silica-based glasses 4.10 describe the basic chemical reactions when cement forms. 4.11 briefly describe why and how many ceramic solids are made by powder processing....
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