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NEEP 541 Review for Second Exam Fall 2002 Jake Blanchard Outline Review Second Exam The second exam will be closed book All questions will be qualitative It covers everything we’ve discussed since the previous exam Topics Material Properties Reactor materials – fission & fusion Tensile tests – true stress and strain, plastic instability Tube rupture tests – types of creep Impact tests - DBTT Focusing and Channeling Focusing Definition Energy range Displacement effects Channeling Definition Criteria for angle Sputtering Model, including stopping power and binding energy Energy Dependence Angular Dependence Empirical Models Chemical Sputtering Topics Strength Theoretical Dislocations Source hardening Friction hardening Hardening by depleted zones Hardening by impenetrable obstacles Loop hardening Topics Damage in Steels Composition Black dot structure Dislocation loops Voids Hardening Transition temperature Helium effects Phase Change Spinodal Decomposition Nucleation and Growth Inverse Kirkendall Effect Temperature Effects Topics Creep Primary, secondary, tertiary Creep mechanisms Irradiation effects Fracture mechanisms Embrittlement Plastic instability Helium effects Grain size Temperature effects Topics Irradiation creep Mechanisms – SIPA, SIPN, etc. Relation to swelling Data Topics Swelling Void stability vs. stacking fault Rate theory Thermal emission Effects on stresses Contemporary theory Data Effects of composition, solutes, heat treatment, cold work Topics Ion swelling Temperature shift Graphite Structure Types of graphite Swelling Thermomechanical properties Chemical sputtering Topics Photons Interactions Attenuation coefficients Radiation Environment in Space Topics Semiconductor Damage How a semiconductor works Ionization in semiconductors Displacements in Si Topics Optical Properties Color centers Data Polymers Mechanical properties Electrical properties