材料结构 1：材料结构基础

你将学到什么

课程概况

Structure – or the arrangement of materials’ internal components – determines virtually everything about a material:  its properties, its potential applications, and its performance within those applications.  This course is the first in a three-part series from MIT’s Department of Materials Science and Engineering that explores the structure of a wide variety of materials with current-day engineering applications. Taken together, these three courses provide similar content to MIT’s sophomore-level materials structure curriculum.

Part 1 begins with an introduction to amorphous materials.  We explore glasses and polymers, learn about the factors that influence their structure, and learn how materials scientists measure and describe the structure of these materials. Then we begin a discussion of the crystalline state, exploring what it means for a material to be crystalline, how we describe periodic arrangement of atoms in a crystal, and how we can determine the structure of crystals through x-ray diffraction.

If you would like to explore the structure of materials further, we encourage you to enroll in Part 2 and Part 3 of the course.

Photo by User: Bill Burris on Flickr. (CC BY-SA) 2.0

课程大纲

Part 1: An Introduction to Materials Science

Structure of materials roadmap
States of matter and bonding

Part 2: Descriptors

Descriptors: concept and function
Free volume
Pair distribution function

Part 3: Glasses

Glass processing methods
Continuous network model
Network modifiers

Part 4: Polymers

Random walk model
Chain-to-chain end distance
Order and disorder in polymers

Part 5: An Introduction to the Crystalline State

Translational symmetry
The crystalline state in 2D
The crystalline state in 3D

Part 6: Real and Reciprocal Space

Miller indices
Real space
Reciprocal space

Part 7: X-Ray Diffraction

Bragg’s Law
Diffraction examples

预备知识

University-level intro to chemistry
Basic linear algebra