Informações sobre o curso
4.7
278 ratings
64 reviews
Have you ever wondered why ceramics are hard and brittle while metals tend to be ductile? Why some materials conduct heat or electricity while others are insulators? Why adding just a small amount of carbon to iron results in an alloy that is so much stronger than the base metal? In this course, you will learn how a material’s properties are determined by the microstructure of the material, which is in turn determined by composition and the processing that the material has undergone. This is the first of three Coursera courses that mirror the Introduction to Materials Science class that is taken by most engineering undergrads at Georgia Tech. The aim of the course is to help students better understand the engineering materials that are used in the world around them. This first section covers the fundamentals of materials science including atomic structure and bonding, crystal structure, atomic and microscopic defects, and noncrystalline materials such as glasses, rubbers, and polymers....
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Sugerido: 5 hours/week

Aprox. 14 horas restantes
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Globe

cursos 100% online

Comece imediatamente e aprenda em seu próprio cronograma.
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Sugerido: 5 hours/week

Aprox. 14 horas restantes
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English

Legendas: English

Programa - O que você aprenderá com este curso

1

Seção
Clock
2 horas para concluir

Introduction [Difficulty: Easy || Student Effort: 1hr 30mins]

This module will introduce the core principles of materials science. Topics that will be covered include the different general material types (metal, ceramic, polymer, etc.) and the properties associated with each type, some methods that are used to experimentally determine and quantify a material's properties, and how a materials engineer might go about choosing a suitable material for a simple application. This module also introduces the concept of the microstructure-processing-properties relationship which is at the heart of all materials science. ...
Reading
14 vídeos (Total de 70 min), 4 leituras, 2 testes
Video14 videos
1.2 Metals8min
1.3 Ceramics5min
1.4 Polymers6min
1.5 Semiconductors3min
1.6 Composites5min
1.7 Correlated Properties2min
1.8 Materials Design Paradigm2min
1.9 Application to Product Design6min
1.10A Mechanical Tests Part 11min
1.10B Mechanical Tests Part 211min
1.10C Mechanical Tests Part 32min
1.10D Mechanical Tests Part 46min
1.11 Conclusion1min
Reading4 leituras
Learning Outcomes10min
Consent Form10min
Supplemental Materials for this Module10min
Get More from Georgia Tech10min
Quiz2 exercícios práticos
Quiz 1.1 (Lectures 1.1 - 1.5)20min
Quiz 1.2 (Lectures 1.6 - 1.10)20min

2

Seção
Clock
4 horas para concluir

Atomic Structure and Bonding [Difficulty: Easy || Student Effort: 2hrs]

In this module, we will discuss the structure of the atom, how atoms interact with each other, and how those interactions affect material properties. We will explore how the types of atoms present in a material determine what kind of bonding occurs, what differentiates the three types of primary bonds - metallic, ionic, and covalent, and the implications of the type of bonding on the material microstructure. You will learn how atoms arrange themselves as a natural result of their size and bonding. This knowledge will provide you with a foundation for understanding the relationship between a material's microstructure and its properties. ...
Reading
18 vídeos (Total de 112 min), 3 leituras, 4 testes
Video18 videos
2.2 Atomic Structure8min
2.3 Periodic Chart and Electron Orbitals8min
2.4 Modification for Atoms & Crystals6min
2.5 Primary Bonds5min
2.6A Ionic Bonds Part 17min
2.6B Ionic Bonds Part 27min
2.6C Ionic Bonds Part 35min
2.7A Radius Ratio & Coordination Number Part 14min
2.7B Radius Ratio & Coordination Number Part 24min
2.7C Radius Ratio & Coordination Number Part 33min
2.8 Covalent Bonds7min
2.9 Mixed Bonds7min
2.10 Weak Bonds6min
2.11A Basic Thermodynamics Part 18min
2.11B Basic Thermodynamics Part 26min
2.12 Basic Kinetics7min
2.13 Conclusionmin
Reading3 leituras
Learning Outcomes10min
Supplemental Materials for this Module10min
Earn a Georgia Tech Badge/Certificate/CEUs10min
Quiz4 exercícios práticos
Quiz 2.1 (Lectures 2.1 - 2.5)20min
Quiz 2.2 (Lectures 2.6 - 2.9)20min
Quiz 2.3 (Lectures 2.10 - 2.11)20min
Quiz 2.4 (All Module 2 Lectures)20min

3

Seção
Clock
4 horas para concluir

Crystalline Structure [Level of Difficulty: Medium || Student Effort: 2hrs 30mins]

This module covers how atoms are arranged in crystalline materials. Many of the materials that we deal with on a daily basis are crystalline, meaning that they are made up of a regularly repeating array of atoms. The "building block" of a crystal, which is called the Bravais lattice, dtermines some of the physical properties of a material. An understanding of these crystallographic principles will be vital to discussions of defects and diffusion, which are covered in the next module. ...
Reading
21 vídeos (Total de 143 min), 2 leituras, 4 testes
Video21 videos
3.2 Symmetry7min
3.3 2-Dimensional Symmetry7min
3.4 2-Dimensional Symmetry - Lattice and Basis4min
3.5 Crystal Systems and Bravais Lattices9min
3.6 Why the Bravais Lattice?9min
3.7 FCC Hard Sphere Model5min
3.8 BCC Hard Sphere Model5min
3.9 Calculating Density6min
3.10 Hard Sphere Packing3min
3.11 Hard Sphere Packing - Visualization5min
3.12 Miller Indices - Directions8min
3.13 Miller Indices - Planes7min
3.14 Miller Indices - Additional Planes of Interest2min
3.15 Linear and Planar Densities7min
3.16 Crystals with 2 Atoms per Lattice Point6min
3.17 Crystals with 2 Ions or 2 Different Atoms per Lattice Point7min
3.18 Crystals with Several Atoms per Lattice Point9min
3.19 Polycrystalline Materials and Liquid Crystals10min
3.20 X-Ray Diffraction and Crystal Structure14min
3.21 Summary1min
Reading2 leituras
Learning Outcomes10min
Supplemental Materials for this Module10min
Quiz4 exercícios práticos
Quiz 3.1 (Lectures 3.1 - 3.6)20min
Quiz 3.2 (Lectures 3.7 - 3.12)20min
Quiz 3.3 (Lectures 3.13 - 3.16)20min
Quiz 3.4 (Lectures 3.17 - 3.20)20min

4

Seção
Clock
4 horas para concluir

Point Defects and Diffusion [Level of Difficulty: Medium || Student Effort: 2hrs 30mins]

In the previous module, we learned how the lattice structure of a crystalline material in part determines the properties of that material. In this module, we will begin to learn how defects - deviations from the expected microstructure - also have a large effect on properties. This module covers one-dimensional, or point, defects which can be missing atoms (vacancies) or excess atoms (interstitial solution) or the wrong type of atom at a lattice point (substitutional solution). Building on these concepts, part of this module will cover diffusion - the movement of atoms through the crystal structure. ...
Reading
19 vídeos (Total de 136 min), 2 leituras, 3 testes
Video19 videos
4.2 Point Defects6min
4.3 Point Defects in Ionic and Covalent Materials5min
4.4 Substitutional Solid Solutions9min
4.5 Solid Solutions - Vegard's Law8min
4.6 Fick's First Law10min
4.7 Self Diffusion7min
4.8 Interstitial Solid Solutions9min
4.9 Discussion Question5min
4.10 Grain Boundary Effects8min
4.11 Grain Boundaries as Short Circuit Paths6min
4.12 Diffusion in Polymers3min
4.13 Fick's Second Law - The Thin Film Solution8min
4.14 Fick's Second Law - Modifications to the Thin Film Solution7min
4.15 Case Hardening a Gear7min
4.16 Case Hardening a Gear - Example Problem9min
4.17 Development of a Useful Approximation4min
4.18 Appllication to Engineering Materials9min
4.19 Summary4min
Reading2 leituras
Learning Outcomes10min
Supplemental Materials for this Module10min
Quiz3 exercícios práticos
Quiz 4.1 (Lectures 4.1 - 4.6)20min
Quiz 4.2 (Lectures 4.7 - 4.12)20min
Quiz 4.3 (All Module 4 Lectures)40min
4.7

Melhores avaliações

por SSMar 30th 2018

Material Behavior is a key subject for material studies and also very important for the mechanical engineering career. This course is very helpful and very easy to understand the hole concepts.

por JLJun 17th 2016

The course was excellent. A lot of in-depth material, beyond even what I remember from college. Coverage of polymer systems in addition to the usual metals was very nice, and the

Instrutores

Thomas H. Sanders, Jr.

Regents' Professor
School of Materials Science and Engineering

Sobre Georgia Institute of Technology

The Georgia Institute of Technology is one of the nation's top research universities, distinguished by its commitment to improving the human condition through advanced science and technology. Georgia Tech's campus occupies 400 acres in the heart of the city of Atlanta, where more than 20,000 undergraduate and graduate students receive a focused, technologically based education....

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