2018 Physical Chemistry for High Temperature Processes -Oxidation of Metals-

Font size  SML

Register update notification mail Add to favorite lecture list
Academic unit or major
Graduate major in Energy Science and Engineering
Instructor(s)
Ueda Mitsutoshi  Susa Masahiro  Kobayashi Yoshinao  Kawamura Kenichi  Hayashi Miyuki 
Course component(s)
Lecture
Day/Period(Room No.)
Fri5-6(S8-501)  
Group
-
Course number
ENR.J404
Credits
1
Academic year
2018
Offered quarter
3Q
Syllabus updated
2018/3/20
Lecture notes updated
-
Language used
English
Access Index

Course description and aims

In this course, students learn the basic thermodynamics and kinetics for understanding of oxidation of metals at high temperature. In the part of basic thermodynamics, students acquire the method of constructing the Ellingham diagram and estimate the chemical stability of metals and oxides by the diagram. In the part of kinetics, students learn the mechanism of scale formation and Wagner’s theory for parabolic scale growth. Finally, students improve understanding of basic thermodynamics and kinetics for high temperature oxidation of metals through the examples of degradation of metals in the industrial processes.
This course provides students with basics of thermodynamics and kinetics for high temperature oxidation of metals. By attending this course, students can understand the degradation mechanism of metals at high temperature and will be able to estimate degradation behavior from given materials and environments. Instructors hope that students improve understanding of degradation of metals in the industrial high temperature processes.

Student learning outcomes

By the end of this course, students will be able to:
1) Explain about oxidation of metals at high temperature and its industrial importance.
2) Construct Ellingham diagram and evaluate the chemical stability of metals and oxides by the diagram.
3) Explain the mechanism of scale formation and estimate parabolic rate constant of scale formation by Wagner’s theory.
4) Estimate degradation behavior of metals at high temperature from given materials and environments.

Keywords

Metals, High Temperature Oxidation, Ellingham diagram, Mechanism of Scale growth, Parabolic rate law, Wagner's theory

Competencies that will be developed

Intercultural skills Communication skills Specialist skills Critical thinking skills Practical and/or problem-solving skills
- - -

Class flow

Each class consists of lecture and exercise.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Introduction to high temperature oxidation of metals
Class 2 Ellingham diagram (Part 1) Construct Ellingham diagram and estimate the stability of metals and oxides by the diagram
Class 3 Ellingham diagram (Part 2) Construct Ellingham diagram considering activity and estimate the stability of alloys and oxides by the diagram
Class 4 Scale growth and its mechanism Understand the mechanism and rate determining step of scale growth
Class 5 Parabolic scale growth and Wagner's theory Understand Wagner's theory, defect structure and diffusion in oxides
Class 6 Analytical methods for evaluating oxide scales on metals Understand analytical methods for evaluating oxide scales
Class 7 Degradation of metals at high temperature in the industrial processes
Class 8 Test level of understanding with exercise problems Estimate degradation behavior of metals at high temperature from given materials and environments.

Textbook(s)

None specified.

Reference books, course materials, etc.

Slides and handout in each class.

Assessment criteria and methods

Students' knowledge of Ellingam diagram, mechanism of scale growth, Wagner's theory, analytical methods for evaluating oxide scale and their ability to apply them to problems will be assessed.
Exercise in Class 8 (30%) and Final exam. (70%)

Related courses

  • ENR.J402 : Physical Chemistry for High Temperature Processes -Thermodynamics-
  • ENR.J403 : Physical Chemistry for High Temperature Processes -Smelting and Refining Processes-
  • MAT.M404 : Transport Phenomena at HighTemperature
  • MAT.M403 : Environmental Degradation of Materials

Prerequisites (i.e., required knowledge, skills, courses, etc.)

Students must have successfully completed 'Themodynamics of Materials' (MAT.A203.R) or have equivalent knowledge.

Page Top