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Illinois MatSE 280 Introduction to Engineering Materials, Lecture 9: Mechanical Failures
09 Jan 2009 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Mechanical Failure: temperature, stress, cyclic and loading effect
ISSUES TO ADDRESS...
How do cracks that lead to failure form?
How is fracture resistance quantified? How do the fracture
resistances of the different material classes compare?
How do we estimate the stress to …
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 3 Part 3: Crystallographic Points, Directions, and Planes
22 Sep 2008 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Crystallographic Points, Directions, and Planes
Issues to Address...
How to define points, directions, planes, as well as
linear, planar, and volume densities
Define basic terms and give examples of each:
Points (atomic positions)
…
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 6: Diffusion in Solids
19 Nov 2008 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Diffusion in Solids
ISSUES TO ADDRESS...
How does diffusion occur?
How can the rate of diffusion be predicted forsome simple cases?
How does diffusion depend on structure and temperature
Content
Diffusion- Steady and Non-Steady State
Simple Diffusion
Inter-diffusion
…
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 3 Part 1: Structure of Metals and Ceramics
19 Sep 2008 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Structures of Metals and Ceramics
Goals
Define basic terms and give examples of each:
Lattice
Basis Atoms (Decorations or Motifs)
Crystal Structure
Unit Cell
Coordination Numbers
…
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Illinois ME 498 Introduction of Nano Science and Technology, Lecture 27: Optical Methods
21 Jan 2010 | Online Presentations | Contributor(s): Nick Fang, Omar Sobh
Optical Mathods
Topics:
Photomask and Reticles
Positive and Negative Lithography
Relationship between Mask and Resist
8 Steps of Photolithography
Photolithographic Process
Positive Photoresists
Negative Photoresists
Chemistry of Photo-Crosslinking
A simplified Model …