擴散學
Diffusion
| 節 | 週一 |
|---|---|
5 13:20–14:10 | 擴散學 EF205 3 節連堂 |
6 14:20–15:10 | |
7 15:30–16:20 |
* 根據陽明交大上課時間表所列
This course introduces the fundamental theories and practical applications of diffusion in solids. Topics include mathematical models based on Fick’s Laws, atomic-level diffusion mechanisms, diffusion driven by concentration gradients, and high-diffusivity paths such as grain boundaries, surfaces, and interfaces in nonmetals and semiconductors. The course also explores the thermodynamic basis of diffusion, phenomena in non-ideal systems (such as the Kirkendall effect), and topics related to thermotransport and electromigration. The inclusion of certain topics may be adjusted based on the pace of the course.
(1)材料熱力學(Thermodynamics of Materials)、(2)工程數學(Engineering Mathematics),以及(3)基礎Python程式設計能力(Basic proficiency in Python coding)。
TBA
Midterm (25%*2), final (30%), and homework (20%).
| 週次 | 主題 |
|---|---|
| 第 1 週 | Introduction to this course: diffusion in solids. |
| 第 2 週 | Fick’s Laws Flux and Fick’s First Law Derivation of the diffusion equation (Fick’s Second Law) |
| 第 3 週 | Solutions to diffusion equations Semi-infinite medium, error function solutions Thin film diffusion, complementary error function Instantaneous and constant source |
| 第 4 週 | Advanced solutions and variable diffusivity Precipitation kinetics Stress-assisted diffusion Diffusion with variable D |
| 第 5 週 | Multiphase and Anisotropic Systems Binary two-phase diffusion Diffusion in non-cubic lattices |
| 第 6 週 | National Holiday (Could be conducted remotely, subject to progress.) |
| 第 7 週 | Midterm |
| 第 8 週 | Atomic theory of diffusion I Random walk and diffusivity Vacancy and interstitial mechanisms Correlation factors and jump frequencies |
| 第 9 週 | Atomic theory of diffusion II Calculating D from first principles Thermodynamic derivation of activation enthalpies (Hv, Hm) Experimental determinations |
| 第 10 週 | Pressure effects and empirical rules Effects of hydrostatic pressure Empirical estimates of Q and D_0 Divacancy formation Self-diffusion anomalies |
| 第 11 週 | Diffusion in dilute alloys I Interstitials and anelastic relaxation Impurity diffusion in pure metals |
| 第 12 週 | Midterm |
| 第 13 週 | Diffusion in dilute alloys II Correlation effects and isotope diffusion Interstitial-substitutional interactions Hydrogen diffusion and trap models |
| 第 14 週 | Diffusion in concentration gradients Kirkendall effect Darken’s analysis and assumptions Phenomenological coefficients |
| 第 15 週 | Semiconductor and intermetallic diffusion Diffusion in oxides and elemental semiconductors Ordered alloys and intermetallic phases |
| 第 16 週 | Final |
1. Shewmon, P. (Ed.). (2016). Diffusion in solids. Springer. 2. Porter, D. A., & Easterling, K. E. (2009). Phase transformations in metals and alloys (revised reprint). CRC press.
- 地點
- EF306
- 時間
- By appointment
- 聯絡方式
- yenlinhuang@nycu.edu.tw