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Displaying all 39 video lectures.
Describes the three types of atomic bonding and presents the equation used to calculate percent ionic character.
Packing Factor for a Body-Centered Cubic Structure
Calculates the atomic packing factor (fraction of the unit cell occupied by atoms) for a body-centered cubic (BCC) structure.
Calculate Metal Density
Calculate the density of a metal from its atomic radius and atomic mass.
Radius of a Metal Atom and Metal Density
Uses the unit cell structure and dimensions to determine the radius of a lead atom and the density of lead.
Crystal Plane Miller Indices
Explains the Miller indices notation used to label planes in a crystal structure.
(111) Planes in FCC Metal
Determines how many distinct sets of (111) planes are present in a face-centered cubic metal.
Directions in Crystals
The indices for directions in a crystal are determined.
Direction in a HCP Unit Cell
Draw a direction on hexgonal close-packed unit cell diagram.
XRD Peak Analysis
Find the Miller indices of a peak in a x-ray diffraction pattern for copper.
Crystal Systems and Ceramic Structures
The seven crystal systems are discussed and examples of cubic and tetragonal structures are given. Ceramic structures are discussed and an example of the perovskite unit cell is given.
Tetrahedral and Octahedral Sites
Describe the locations of tetrahedral and octahedral sites in a face-centered cubic (FCC) crystal structure.
Linear and Planar Densities
Calculates the linear and planar densities of a metal.
Miller-Bravais Indices: Hexagonal Structure
Determines the four-parameter Miller-Bravais indices for an hexagonal unit cell.
Applies the Hume-Rothery rules to predict solubility of an aluminum-silicon alloy.
Point Defects in Ceramics
Describes vacancy and interstitial defects in a salt crystal.
Vacancies in Metals
Calculates the fraction of vacancies in a copper crystal structure at 1000°C.
Diffusion into a Solid
Calculates the time for carbon to diffuse into a metal alloy at high temperature.
Introduction to engineering stress-strain diagrams for metals.
Engineering Stress and Strain
Demonstrates how to calculate engineering stress and strain.
Elastic Properties of Metals
Uses the elastic properties of metals to select a material for a design problem.
Compares the electrical conductivities of two metal alloys given voltage drop data in a test circuit.
Polymer Molecular Weight
Calculates the number average and the weight average molecular weight from a polymer molecular weight distribution.
An introduction to step growth polymerization.
Describes the reaction steps in addition polymerization, using free radical polymerization as an example.
Describes the regions of a pressure-temperature projection and the behavior across phase boundaries.
Solid-Liquid Phase Diagrams
Describes the regions of a liquid-solid, T-x phase diagram for a system composed of Mg and Si.
Solid-Liquid Phase Diagram for Miscible Metals
Describes the regions of the T-x phase diagram for two miscible metals, describes the behavior as a liquid is cooled to form a solid, and discusses why the two metals are miscible.
Cooling Curves for a Liquid-Solid System
Uses the information in a phase diagram to draw the temperature dependence on time as a binary liquid alloy is slowly cooled.
Lever Rule for Solid-Liquid Phase Diagram
Applies the lever rule to a solid-liquid mixture to determine the fraction of each phase in equilibrium and explains the basis for the lever rule.
Describes the non-equilibrium solid microstructures that form when a binary liquid alloy cools.
Phase Diagram with Peritectic Reaction
Describes the phases that form when a binary liquid is cooled and the mixture undergoes a peritectic reaction.
Gibbs Phase Rule for Material Science
Explains the Gibbs phase rule and applies to a binary system in which the two components are only partially miscible in the liquid phase.
Dislocations and Plastic Deformation
Explains the concepts of dislocations in metal crystal structures and plastic deformation.
Describes recrystallization and grain growth when a material is plastically deformed.
Hydrogen Diffusion Through Palladium
Use Fick's law to calculate the temperature needed to obtain a desired flux of hydrogen, which is diffusing through a palladium membrane.
Rock Salt Structure
Describes the rock salt crystal structure, which is the structure of FeO.
Unit Cell Length for Iron Oxide
Uses the density and the structure of FeO to determine its unit cell dimension.
Solid-Liquid Phase Diagram
Describes the phases present on a temperature versus mole fraction diagram for the titanium-uranium system using an interactive Mathematica simulation. This simulation is available at:
Txy Phase Diagrams for VLLE Tutorial
Uses an interactive simulation to demonstrate equilibrium phases for a binary system on a T-x-y diagram where the two components are only partially miscible in the liquid phase. The interactive simulation is available on the Wolfram Demonstration Project website:
Subject: Chemical Engineering
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