晶體結構與繞射導論

本課程內容主要包含二大部分: (1) 晶體結構的對稱、分類、點群及空間群等結晶學相關基礎知識,以及重要晶體結構。(2) X光光源介紹、倒晶格之繪製、X光繞射的基本原理、及其於材料分析之各種基礎應用。

材料科學導論

無備註

彩色投影片上傳e3平台,提供線上閱讀及下載。 投影片於課堂上配合黑板講授。 上課過程點選數位同學進行互動問答,以了解同學理解程度。 每單元提供練習作業並必須繳交計分。

依課程目標理解度進行評分。評分配比如下: 上課出席狀況(10%),小考(30 %),期中測驗(30%),期末測驗(30%)。

• L1_Crystals and Crystal Structures

  1. Lattice, Unit Cell & Crystal Structure 2. Metallic Crystal Structures 3. Interstitial Structures & Radius Ratio 4. Some Covalent Crystal Structures 5. Some Ionic Crystal Structures 6. Some Other Crystal Structures

  講授：

  3

• L2_2D Lattices and Symmetry

  1. Symmetry, Element & Operation 2. 2D Symmetry Element 3. 10 Point Group 4. 5 Plane Lattices 5. 17 Plane Group 6. 2D Symmetry Patterns 7. 1D Symmetry Patterns

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  3

• L3_3D Symmetry and Point Groups

  1. 10 Symmetry Elements in 3D 2. 7 Crystal Systems 3. 32 Point Groups 4. Some Practices 5. 3D Objects 6. Molecules

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  3

• L4_Space Groups in 3 Dimensions

  1. 14 Bravais Lattices 2. 2 Additional Symmetry Types within the Internal Structure of Crystals 3. Screw Axes 4. Glide Planes 5. 230 Space Groups (Internal structure of crystals ) 6. Hermann-Mauguin Symbols 7. 230 Space Groups (total)

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  3

• L5_International Table for X-ray Crystallograhy

  1. Introduction 2. International Tables for (X-ray) Crystallography 3. Wyckoff Positions 4. Some Applications of International Tables

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  3

• L6_Direct and Reciprocal Space

  1. Lattice Direction Symbols 2. Lattice Planes Symbols 3. Directions/Planes of a Form 4. Zone Axis 5. Calculations for Crystal Geometry 6. Reciprocal Lattice

  講授：

  3

• L7_The Diffraction of Light

  1. The Diffraction of Light

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  3

• L8_The Diffraction of X-ray (I)

  1. Early History of X-rays 2. The Continuous Spectrum 3. The Characteristic Spectrum 4. Absorption/Filtering 5. Laue Equations 6. Bragg Law 7. Ewald Sphere

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  3

• L9_The Diffraction of X-ray (II)

  1. Single Crystal Diffraction 2. Powder Sample Diffraction 3. Structure Factor

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  3

• L10_The Diffraction of X-ray (III)

  1. Indexing of Cubic Crystal 2. Powder Diffraction File (PDF) Database 3. The Hanawalt Method 4. Scherrer Equation 5. Lattice Strain 6. Lattice Parameters of Bi-Alloys 7. Intensity Diffracted by a Powder Specimen 8. Rietveld Method (Program)

  講授：

  3

1. The Basics of Crystallography and Diffraction, 3rd Ed, Ch. Hammond, 2001. 2. Crystallography and Crystal Chemistry: An Introduction, F. Donald Bloss, 1994. 3. Fundamentals of Crystallography, 2nd Ed., C. Giacovazzo, et al., 2002.

地點

EF304

時間

每週二、四下午4:30~6:00

聯絡方式

Email:ChunHuaChen@mail.nctu.edu.tw