Aims: To stimulate the intellectual development of students by encouraging their engagement with aspects of the science of surfaces and interfaces which have a practical bearing in the context of engineering.
Learning Outcomes:
After taking the unit students should inter alia be able to engage with aspects of the science of surfaces and interfaces which have a practical bearing in the context of engineering.
Skills:
Facilitated - intellectual, practical, key.
Content:
1. Basic surface science Solid surface energies, spreading and wetting, multicomponent systems: surface excess, Langmuir-Blodget films 'Practical' surfaces: metals and polymers: importance of "clean" surfaces in joining technology.
2. Characterisation of solid surfaces: profilometry, contact angles,
3. Adhesion Theories of adhesion, pretreatments, interfacial tensions and interfacial forces.Tests of adhesion, mode of failure, environmental durability. Selection and use of adhesives, paints, coatings.
4. Joining technology for electrical components. Fluxes, surface preparation.
5. Degradation (corrosion) as surface -linked phenomena: cool (aqueous) corrosion of metals, hot corrosion of metals, degradation of polymers.
6. Tribology: friction, lubrication, wear, types of wear.
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