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Illinois ECE 598EP Lecture 1 - Hot Chips: Atoms to Heat Sinks
Online Presentations | 29 Jan 2009 | Contributor(s):: Eric Pop
IntroductionContent: The Big Picture Another CPU without a Heat Sink Thermal Management Methods Impact on People and Environment Packaging cost IBM S/390 refrigeration and processor packaging Intel Itanium and Pentium 4packaging Graphics Cards Under/Overclocking Environment A More Detailed Look...
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Illinois ECE 598EP Lecture 3.1 - Hot Chips: Electrons and Phonons
Online Presentations | 11 Feb 2009 | Contributor(s):: Eric Pop, Omar N Sobh
Electrons and Phonons
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Illinois MatSE 280 Introduction to Engineering Materials, Lecture 1: Materials: Their Properties and Failures
Online Presentations | 14 Aug 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
"Because without materials, there is no engineering"In this lecture we will discuss the following:- Units of Length- Six Major Classes of Materials- Periodic Table of Elements- Properties of Materials- Materials Science and Engineering in a Nutshell
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Illinois MatSE 280 Introduction to Engineering Materials, Lecture 2: Atomic Structure and Interatomic Bonding
Online Presentations | 18 Aug 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Refortify your chemistry - Atomic scale structuresGoals Define basic concepts: Filling of Atomic Energy Levels: Pauli Exclusion Principle Atomic Orbitals (s-, p-, d-, and f- type electrons) Types of Bonding between Atoms The Periodic Table (and solid state structures)...
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 3 Part 1: Structure of Metals and Ceramics
Online Presentations | 19 Sep 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Structures of Metals and CeramicsGoals Define basic terms and give examples of each: Lattice Basis Atoms (Decorations or Motifs) Crystal Structure Unit Cell Coordination Numbers Describe hard-sphere packing and identify cell symmetry Crystals density: the mass per volume (e.g. g/cm3) Linear...
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 3 Part 2: Structure of Ceramics
Online Presentations | 21 Sep 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Structure of CeramicsIssues to Address...Structures of ceramic materials: How do they differ from that of metals?Define basic terms and give examples of each: Lattice Basis Atoms (Decorations or Motifs) Crystal Structure Unit Cell Coordination Numbers Describe hard-sphere packing and identify...
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 3 Part 3: Crystallographic Points, Directions, and Planes
Online Presentations | 22 Sep 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Crystallographic Points, Directions, and PlanesIssues to Address...How to define points, directions, planes, as well aslinear, planar, and volume densitiesDefine basic terms and give examples of each: Points (atomic positions) Vectors (defines a particular direction - plane normal) Miller Indices...
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 3 Part 4: Structures via Diffusion
Online Presentations | 28 Sep 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Structures via DiffractionGoals Define basic ideas of diffraction (using x-ray, electrons, or neutrons, which, although they are particles, they can behave as waves) and show how to determine: Crystal Structure Miller Index Planes and Determine the Structure Identify cell symmetry Learning...
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 4 : Polymer Structures
Online Presentations | 04 Oct 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Issues to Address...What are the basic Classification? Monomers and chemical groups? Nomenclature? Polymerization methods? Molecular Weight and Degree of Polymerization? Molecular Structures? Crystallinity? Microstructural features?
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 5 - Part 1 : Imperfections in Solids
Online Presentations | 14 Nov 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Imperfections in Solids ISSUES TO ADDRESS... What types of defects arise in solids? Describe them Can the number and type of defects be varied and controlled? How do defects affect material properties? Are defects undesirableGiven masses or atomic weights of two or more elements in an alloy,...
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 5 - Part 2 : Line Defects, Dislocations and their Scale
Online Presentations | 14 Nov 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Imperfections in Solids (Continue)Content: Line Defects: Dislocations and their Scale Line Defects: Dislocations Incremental Slip and Bond Breaking Edge Dislocations Exiting Crystal Form Steps Dislocations: Screw, Edge and Mixed (in handout) Formation of Steps from Screw and Edge...
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Illinois MATSE 280 Introduction to Engineering Materials, Lecture 6: Diffusion in Solids
Online Presentations | 19 Nov 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Diffusion in SolidsISSUES TO ADDRESS... How does diffusion occur? How can the rate of diffusion be predicted forsome simple cases? How does diffusion depend on structure and temperatureContent Diffusion- Steady and Non-Steady State Simple Diffusion Inter-diffusion Self-diffusion...
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Illinois MatSE 280 Introduction to Engineering Materials, Lecture 7: Mechanical Properties
Online Presentations | 15 Dec 2008 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Mechanical PropertiesWhy Mechanical Properties? Need to design materials that will withstand applied load and in-service uses for ... Space exploration, Bridges for autos and people, skyscrapers, MEMS devices, Space elevator?Content: Stress and strain Elastic and Plastic Deformation of Metals...
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Illinois MatSE 280 Introduction to Engineering Materials, Lecture 9: Mechanical Failures
Online Presentations | 09 Jan 2009 | Contributor(s):: Duane Douglas Johnson, Omar N Sobh
Mechanical Failure: temperature, stress, cyclic and loading effectISSUES 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 fracture? How do...
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Illinois MATSE 280: Introduction to Engineering Materials
Courses | 18 Aug 2008 | Contributor(s):: Duane Douglas Johnson
This course introduces you to the materials science and engineering of metals, ceramics, polymers, and electronic materials. Topics include: bonding, crystallography, imperfections, phase diagrams, properties and processing of materials. Case studies are used when...
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Illinois MatSE485/Phys466/CSE485 - Atomic-Scale Simulation
Courses | 27 Jan 2009 | Contributor(s):: David M. Ceperley
THE OBJECTIVE is to learn and apply fundamental techniques used in (primarily classical) simulations in order to help understand and predict properties of microscopic systems in materials science, physics, chemistry, and biology. THE EMPHASIS will be on connections between the simulation...
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Illinois PHYS 466, Lecture 10: Sampling
Online Presentations | 19 Mar 2009 | Contributor(s):: David M. Ceperley, Omar N Sobh
Fundamentals of Monte CarloWhat is Monte Carlo? Named at Los Alamos in 1940’s after the casino. Any method which uses (pseudo)random numbers> as an essential part of the algorithm. Stochastic - not deterministic! A method for doing highly dimensional integrals by sampling the...
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Illinois PHYS 466, Lecture 11: Importance Sampling
Online Presentations | 13 Mar 2009 | Contributor(s):: David M. Ceperley
Importance samplingToday We will talk about the third option: Importance sampling and correlated samplingContent: Importance Sampling Finding Optimal p*(x) for Sampling Example of importance sampling What are allowed values of a? What does infinite variance look like? General Approach to...
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Illinois PHYS 466, Lecture 12: Random Walks
Online Presentations | 27 Mar 2009 | Contributor(s):: David M. Ceperley
Random WalksToday we will discuss Markov chains (random walks), detailed balance and transition rules. These methods were introduced by Metropolis et al. in 1953 who applied it to a hard sphere liquid. It is one of the most powerful and used algorithmsContent: Equation of State Calculations by...
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Illinois PHYS 466, Lecture 13: Brownian Dynamics
Online Presentations | 07 Apr 2009 | Contributor(s):: David M. Ceperley
Brownian DynamicsLet’s explore the connection between Brownian motion and Metropolis Monte Carlo. Why? Connection with smart MC Introduce the idea of kinetic Monte Carlo Get rid of solvent degrees of freedom and have much longer time steps.Content: Local Markov process General Form of Evolution...