关于此课程： We explore “10 things” that range from the menu of materials available to engineers in their profession to the many mechanical and electrical properties of materials important to their use in various engineering fields. We also discuss the principles behind the manufacturing of those materials. By the end of the course, you will be able to: * Recognize the important aspects of the materials used in modern engineering applications, * Explain the underlying principle of materials science: “structure leads to properties,” * Identify the role of thermally activated processes in many of these important “things” – as illustrated by the Arrhenius relationship. * Relate each of these topics to issues that have arisen (or potentially could arise) in your life and work. If you would like to explore the topic in more depth you may purchase Dr. Shackelford's Textbook: J.F. Shackelford, Introduction to Materials Science for Engineers, Eighth Edition, Pearson Prentice-Hall, Upper Saddle River, NJ, 2015
此课程适用人群： "A MUST COURSE FOR BUDDING MATERIAL ENGINEERS/ MATERIAL SCIENTISTS!! Professor Shackelford is so awesome!! The way he taught the course helped me grasp the fundamentals of material science better than any that taught me during my four year bachelor tenure in Material engineering." ~Course Completer
制作方： 加州大学戴维斯分校
教学方： James Shackelford, Distinguished Professor Emeritus
Department of Chemical Engineering and Materials Science
| 承诺学习时间 | 5 weeks, 3 hours per week |
| 语言 | English |
| 如何通过 | 通过所有计分作业以完成课程。 |
| 用户评分 |
授课大纲
第 1 周
Course Overview / The Menu of Materials / Point Defects Explain Solid State Diffusion
Welcome to week 1! In lesson one, you will learn to recognize the six categories of engineering materials through examples from everyday life, and we’ll discuss how the structure of those materials leads to their properties. Lesson two explores how point defects explain solid state diffusion. We will illustrate crystallography – the atomic-scale arrangement of atoms that we can see with the electron microscope. We will also describe the Arrhenius Relationship, and apply it to the number of vacancies in a crystal. We’ll finish by discussing how point defects facilitate solid state diffusion, and applying the Arrhenius Relationship to solid state diffusion.
10 视频
- 视频: Course Introduction
- 视频: Six Categories of Engineering Materials
- 视频: Structure Leads to Properties
- 视频: Summary
- 视频: Crystallography and the Electron Microscope
- 视频: Introduction to the Arrhenius Relationship
- 视频: The Arrhenius Relationship Applied to the Number of Vacancies in a Crystal
- 视频: Point Defects and Solid State Diffusion
- 视频: The Arrhenius Relationship Applied to Solid State Diffusion
- 视频: Summary
已评分: Thing 1
已评分: Thing 2
第 2 周
Dislocations Explain Plastic Deformation / Stress vs. Strain -The “Big Four” Mechanical Properties
Welcome to week 2! In lesson three we will discover how dislocations at the atomic-level structure of materials explain plastic (permanent) deformation. You will learn to define a linear defect and see how materials deform through dislocation motion. Lesson four compares stress versus strain, and introduces the “Big Four” mechanical properties of elasticity, yield strength, tensile strength, and ductility. You’ll assess what happens beyond the tensile strength of an object. And you’ll learn about a fifth important property – toughness.
10 视频
- 视频: Defining a Linear Defect - the Dislocation
- 视频: Plastic Deformation by Dislocation Motion
- 视频: Summary
- 视频: The Stress versus Strain (Tensile) Test
- 视频: The “Big Four” Mechanical Properties
- 视频: Focusing on Strength and Stiffness
- 视频: Beyond the Tensile Strength
- 视频: Focusing on Ductility
- 视频: A Fifth Parameter – Toughness
- 视频: Summary
已评分: Thing 3
已评分: Thing 4
第 3 周
Creep Deformation / The Ductile-to-Brittle Transition
Welcome to week 3! In lesson five we’ll explore creep deformation and learn to analyze a creep curve. We’ll apply the Arrhenius Relationship to creep deformation and identify the mechanisms of creep deformation. In lesson six we find that the phenomenon of ductile-to-brittle transition is related to a particular crystal structure (the body-centered cubic). We’ll also learn to plot the ductile-to-brittle transition for further analysis.
8 视频
- 视频: Definition of Creep Deformation
- 视频: The Creep Curve
- 视频: Creep Deformation and the Arrhenius Relationship
- 视频: Mechanisms for Creep Deformation
- 视频: Summary
- 视频: The Ductile-to-Brittle Transition and Crystal Structure
- 视频: Plotting the Ductile-to-Brittle Transition
- 视频: Summary
已评分: Thing 5
已评分: Thing 6
第 4 周
Fracture Toughness / Fatigue
Welcome to week 4! In lesson seven we will examine the concept of critical flaws. We’ll define fracture toughness and critical flaw size with the design plot. We’ll also distinguish how we break things in good and bad ways. Lesson eight explores the concept of fatigue in engineering materials. We’ll define fatigue and examine the fatigue curve and fatigue strength. We’ll also identify mechanisms of fatigue.
10 视频
- 视频: Introducing the Concept of Critical Flaws
- 视频: Fracture Toughness and the Design Plot
- 视频: Critical Flaw Size and the Design Plot
- 视频: A Play of Good versus Evil!
- 视频: Summary
- 视频: Introduction to Fatigue
- 视频: Defining Fatigue
- 视频: The Fatigue Curve and Fatigue Strength
- 视频: Mechanism of Fatigue
- 视频: Summary
已评分: Thing 7
已评分: Thing 8
第 5 周
Making Things Fast and Slow / A Brief History of Semiconductors
Welcome to week 5! In lesson nine we’ll deal with how to make things fast and slow. We’ll examine the lead-tin phase diagram and look at its practical applications as an example of making something slowly. Then we’ll evaluate the TTT diagram for eutectoid steel, and compare diffusional to diffusionless transformations with the TTT diagram, monitoring how we make things rapidly. Lesson ten is a brief history of semiconductors. Here, we discuss the role of semiconductor materials in the modern electronics industry. Our friend Arrhenius is back again, and this time we’re applying the Arrhenius Relationship to both intrinsic and extrinsic semiconductors. We’ll also look at combined intrinsic and extrinsic behavior.
12 视频
- 视频: Introduction to Phase Diagrams
- 视频: The Lead-Tin Phase Diagram
- 视频: The Competition Between Instability and Diffusion
- 视频: The TTT Diagram for Eutectoid Steel
- 视频: Diffusional Transformations
- 视频: Diffusionless Transformations
- 视频: Summary
- 视频: A Brief History
- 视频: The Intrinsic Semiconductor
- 视频: The Extrinsic Semiconductor
- 视频: Combined Intrinsic and Extrinsic Behavior
- 视频: Summary
已评分: Thing 9
已评分: Thing 10
已评分: Ten Things Final
常见问题解答
运作方式
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制作方
加州大学戴维斯分校
UC Davis, one of the nation’s top-ranked research universities, is a global leader in agriculture, veterinary medicine, sustainability, environmental and biological sciences, and technology. With four colleges and six professional schools, UC Davis and its students and alumni are known for their academic excellence, meaningful public service and profound international impact.
评分和审阅
Great as a general introduction to fundamentals of material science.
A very good course to learn the basics of material science
Excelent course! Thanks Prof. Shackelford!!
Good course with very useful content, definitely useful to help enrich development and problem solving programs at work.