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Notes
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Engineering
4 min read
Material Properties and Engineering vs True Stress & Strain
An introduction to material properties, how to perform a tensile test, engineering and true stress and strain, poisson's ratio and hardening
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Engineering
4 min read
Hardness, Toughness, Creep & Fatigue
Brinell and VIckers hardness, investigating toughness, the charpy impact test, creep resistance, creep curves, creep law, fatigue cracks.
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Engineering
4 min read
Bonding
Ionic, covalent, metallic & van der Waals bonds, including molecular, macromolecular & hydrogen bonding, interatomic forces & bond energies.
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Engineering
3 min read
Crystal Structures
The Hard Sphere Model, packing in 2 & 3 dimensions, Simple cubic, BCC, FCC, HCP lattices and atomic density.
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Engineering
3 min read
Defects & Deformation of Crystal Structures
Slip & slip systems in HCP, FCC BCC lattices, point, line & area defects, edge & screw dislocations, grain boundaries & strengthening.
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Engineering
5 min read
Non-Ferrous Alloys & Strengthening
Types of alloying, complete & partial solid solutions, equilibrium phase diagrams, eutectic point, solid solution & precipitation hardening.
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Engineering
5 min read
Ferrous Alloys & Strengthening
Steels, cast iron, ferrite, austenite, cementinte, pearlite, bainite, normalising, quenching, tempering, tempered martensite, eutectoid.
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Engineering
2 min read
Ceramics
Crystal structure and properties of ceramics, degree of ionic character, bending tests, manufacturing ceramics, pressing and sintering.
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Engineering
5 min read
Polymers
Polymer structure, thermoplastics, thermosets, elastomers, tensile & temperature dependent properties of polymers, plastic creep & failure.
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Engineering
3 min read
Composites
Composite structure & types, critical fibre length, fibre volume fraction, isostrain/isostress, metal matrix, ceramic matrix, polymer matrix
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