About this Course
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지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

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일정에 따라 마감일을 재설정합니다.

완료하는 데 약 8시간 필요

권장: 5 weeks, 3 hours per week...

영어

자막: 영어, 러시아어

귀하가 습득할 기술

MaterialsMechanical EngineeringEngineering DesignElectrical Engineering

100% 온라인

지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

탄력적인 마감일

일정에 따라 마감일을 재설정합니다.

완료하는 데 약 8시간 필요

권장: 5 weeks, 3 hours per week...

영어

자막: 영어, 러시아어

강의 계획 - 이 강좌에서 배울 내용

1
완료하는 데 1시간 필요

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 videos (Total 41 min), 2 quizzes
10개의 동영상
Six Categories of Engineering Materials8m
Structure Leads to Properties5m
Summary2m
Crystallography and the Electron Microscope6m
Introduction to the Arrhenius Relationship5m
The Arrhenius Relationship Applied to the Number of Vacancies in a Crystal4m
Point Defects and Solid State Diffusion3m
The Arrhenius Relationship Applied to Solid State Diffusion2m
Summary36
2개 연습문제
Thing 110m
Thing 224m
2
완료하는 데 1시간 필요

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 videos (Total 34 min), 2 quizzes
10개의 동영상
Plastic Deformation by Dislocation Motion8m
Summary13
The Stress versus Strain (Tensile) Test3m
The “Big Four” Mechanical Properties3m
Focusing on Strength and Stiffness4m
Beyond the Tensile Strength4m
Focusing on Ductility1m
A Fifth Parameter – Toughness2m
Summary1m
2개 연습문제
Thing 38m
Thing 416m
3
완료하는 데 1시간 필요

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 videos (Total 34 min), 2 quizzes
8개의 동영상
The Creep Curve5m
Creep Deformation and the Arrhenius Relationship8m
Mechanisms for Creep Deformation3m
Summary1m
The Ductile-to-Brittle Transition and Crystal Structure7m
Plotting the Ductile-to-Brittle Transition5m
Summary1m
2개 연습문제
Thing 516m
Thing 68m
4
완료하는 데 1시간 필요

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 videos (Total 43 min), 2 quizzes
10개의 동영상
Fracture Toughness and the Design Plot8m
Critical Flaw Size and the Design Plot5m
A Play of Good versus Evil!4m
Summary33
Introduction to Fatigue1m
Defining Fatigue6m
The Fatigue Curve and Fatigue Strength5m
Mechanism of Fatigue5m
Summary1m
2개 연습문제
Thing 718m
Thing 812m
5
완료하는 데 2시간 필요

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 videos (Total 55 min), 3 quizzes
12개의 동영상
The Lead-Tin Phase Diagram1m
The Competition Between Instability and Diffusion4m
The TTT Diagram for Eutectoid Steel5m
Diffusional Transformations3m
Diffusionless Transformations4m
Summary1m
A Brief History7m
The Intrinsic Semiconductor4m
The Extrinsic Semiconductor6m
Combined Intrinsic and Extrinsic Behavior4m
Summary1m
3개 연습문제
Thing 920m
Thing 1014m
Ten Things Final40m
4.6
241개의 리뷰Chevron Right

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최상위 리뷰

대학: ZMJul 18th 2017

This course is good for engineers. It illustrated many fundemental and important concept in materials science. The teacher is great who explain nearly everthings in details with words and experiments.

대학: SSJul 25th 2017

It helped me a lot to have a basic idea about different types of materials, processing and properties. I earned basic knowledge about materials and I can teach these relevant topics to students

강사

Avatar

James Shackelford

Distinguished Professor Emeritus
Department of Chemical Engineering and Materials Science

캘리포니아 대학교 데이비스 캠퍼스 정보

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....

자주 묻는 질문

  • 강좌에 등록하면 바로 모든 비디오, 테스트 및 프로그래밍 과제(해당하는 경우)에 접근할 수 있습니다. 상호 첨삭 과제는 이 세션이 시작된 경우에만 제출하고 검토할 수 있습니다. 강좌를 구매하지 않고 살펴보기만 하면 특정 과제에 접근하지 못할 수 있습니다.

  • 수료증을 구매하면 성적 평가 과제를 포함한 모든 강좌 자료에 접근할 수 있습니다. 강좌를 완료하면 전자 수료증이 성취도 페이지에 추가되며, 해당 페이지에서 수료증을 인쇄하거나 LinkedIn 프로필에 수료증을 추가할 수 있습니다. 강좌 콘텐츠만 읽고 살펴보려면 해당 강좌를 무료로 청강할 수 있습니다.

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