Processing of ceramics, powder metallurgy and surface treatments [ LMAPR2672 ]

http://icampus.uclouvain.be/claroline/course/index.php?cid=MAPR2672

Metallic andceramic powders: production and characterization; shaping of the semi-finished green product ; sintering process ;properties of sintered products.

Within the engineering degree program in chemistry and materials science, the course involves simultaneously four axes covering both disciplinary and transversal learning outcomes. At the end of the course, students will be able to :

(Learning Outcome 1.1)

• Explain the physical and physico-chemical phenomena underlying the processes of shaping of massive bodies from metal or ceramics powders via dry, wet, or plastic methods.
• Describe the interactions between the critical parameters for the manufacturing of a homogeneous, high density green part
• Describe the driving forces and mechanisms of material transport that govern the different stages of sintering of an aggregate of solid particles
• Describe the influence of residual porosity on the mechanical behavior of sintered materials
• Describe and classify the different surface treatment processes.

(L.O. 1.2 and 3.2)

• By reclaiming the achievements of the bachelor program in mathematical concepts and in the use of computational tools, develop a mathematical model to simulate a physical phenomenon

(L.O. 3.1)

• Draw a state of the art in a specific technological domain based on a set of technical and scientific references

(L.O. 4.2)

• Conduct a project group

(L.O. 5.3)

• Present and defend an oral report effectively and critically

Students areassessed individually in writing and orally. The exam questions are formulated to verify the acquired disciplinary learning outcomes mentioned above. The exam focuses on the response to questions relating to the understanding of the theory, and more specifically, for the written part, issues related to the ability to solve exercises of the same type as those offered during the course activities.

The achievementof transversal learning outcomes is evaluated via an oral assessment on the project in groups. Each student orally presents the work of his group to a panel composed of the teacher as well as students from other groups. To encourage students to practice critical sense, the evaluation criteria are defined previously by the students.

The course consists of a dozen of lectures and a dozen of exercises and group work sessions. The modeling of sintering is developed in a project in groups of 4 students. On the basis of theoretical concepts, the interpretation of results of mechanical tests and / or of control data recorded in an industrial shaping process is also the subject of a project carried out in groups of 2 to 3 students. An individual work aims at drawing a state of the art in an emerging process not covered in lectures. The teachers themselves supervise the exercises and group work. They also organize one or two factory visit to illustrate the topics of the course.

The course considers successively the different stages of the manufacture of sintered materials: synthesis of powders; shaping of the green aggregate, sintering, surface treatments, properties of products.

The course materials are available to students on ICampus. They consist primarily of:

• A syllabus giving presentation of the subjects
• The copy of power Point documents used by teachers
• Exercises
• Instructions for group project
• Papers of the literature

This courseinvolves the knowledge of the scientific bases of metals and ceramics as well as of the thermodynamics taught in the bachelor program in civil engineering and in the core courses of the program KIMA.