Syllabus
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1. Basic definitions Definition of physical properties of materials with regard to their use in the vacuum. Vapour pressure, rate of evaporation, solubility of gases in solids and liquids, diffusion and premeation of gases through solids. *
2. Metals and their alloys Metals and some alloys. Re-crystallisation. High-melting metals and alloys W, Mo, Ta, Nb, Re, precious metals Pt, Pd, Rh, Os, Ir, Ru, Au, Ag. Non-precious metals Ni, Fe, Cu, Al, Be, Zr, Ti, Th, Hf, Hg, In. Alloys of peculiar properties. *
3. Glass Basic characteristics. Soft, medium and hard glasses. Fused silica. Sintering. *
4. Ceramics Silicate ceramics, oxide ceramics, special ceramics. *
5. Elastomers Natural rubber, silicon rubber, fluorocarbon rubber, polytetrafluorethylen. *
6. Fluids for pumps, greases and cements. *
7. Gases and vapours Noble gases Ar, Ne, He, Kr, Xe. General gases H2, O2, N2, CO, CO2, NH3. *
8. Adsorbents and getters, materials for cathodes. *
9. Choice of vacuum materials, pretreatment, outgassing, cleaning, degreasing, surface conditioning. *
10. Joining of vacuum materials, demountable and non-demountable joints
Annotation
Choice, pretreatment, treatment, cleaning and use of materials for vacuum technique, principles of design, selected methods of joining and surface conditioning of materials, use of liquids and gases in vacuum technique.