Innovative Metal and Ceramic Processing

11M2221

Master

German

5.0

only winter term

1 semester

For the practice of an M.Sc. in the metal or ceramic manufacturing industry, the understanding of the relevance of the first purification steps and the entire processing of the raw materials to ensure reproducible properties and to avoid errors is the focus of the work process. For this reason, in addition to conventional processing steps, the aim of this module is to illuminate and convey the fundamentals of modern and innovative methods such as 3D printing. In addition, technical approaches such as modern high-throughput methods, design of experiments approaches and AI-based data analysis will be used.

1. metals:
1.1 Metallurgical processes
1.1.1 Thermodynamics of phase equilibria in alloys and calculation of state diagrams
1.1.1 Transition from liquid to solid: nucleation and the relationship between process parameters, microstructure formation and properties
1.2 Process route additive manufacturing of metals
1.2.1 Powder production: atomisation methods and their influence, influence of process parameters, Wagner & Reynolds number ratio, equilibrium remote cooling, precipitate formation, segregation, etc., functional powder properties
1.2.2 Powder preparation: sieving, air classification, particle size distribution
1.2.3 Manufacturing: Powder bed processes, filament processes, hybrid processes, LMD (high throughput, component manufacturing), influence of processes on microstructure and selected material properties
1.2.4 Comparison between microstructure additively manufactured and cast specimens

1.3 Material development through additive manufacturing
1.3.1 Computer-aided alloy design and high-throughput processes
1.3.2 Integrated Computational Materials Engineering (ICME)
1.3.3 Alloying during atomisation
1.3.4 High-throughput LMD and DoE as well as AI-based evaluation methods (guest lecture GE)

2. ceramics
2.1 Ceramic technologies
      2.1.1 Raw materials, powder synthesis, preparation, material cycles, grinding, granulation, doping and modification
      2.1.2 Compaction and moulding: dry pressing process, slip casting, ceramic spheroidal casting

The total workload for the module is 150 hours (see also "ECTS credit points and grading").

• Written examination or
• oral exam

• Field work / Experimental work

The examiners choose the type of examination from the options provided and inform the students at the beginning of the semester.

Written examination: one hour,
oral examination: see the currently valid General Part of the Examination Regulations (ATPO)

The experimental work consists of two parts, one in the metallic and one in the ceramic area. These experiments must be concluded with a report.

This module assumes basic knowledge of metallurgy and glass and ceramics, as acquired in introductory modules on materials science, metallurgy, and glass and ceramics. The following foundational literature is recommended: G. Gottstein: Physical Foundations of Materials Science, Springer, 2007 W. Dahl, Materials Science of Steel, Volume 1: Fundamentals, Springer-Verlag, 1984 E. Hornbogen, H. Warlimont, Metallurgy: Structure and Properties of Metals and Alloys, Springer-Verlag, 2000 Salmang, H., & Scholze, H. The Physical and Chemical Foundations of Ceramics, Springer-Verlag, 2013 Kollenberg, W. (Ed.). Technical Ceramics: Fundamentals, Materials, Process Engineering. Vulkan-Verlag GmbH, 2004

In addition to the processing techniques familiar from the Bachelor's programme, students can also explain innovative and challenging techniques, e.g. 3D printing on metals or ceramics, and name specific requirements/process settings.

Students also deepen their background knowledge of the design of special powders and granulates.

Außerdem vertiefen die Studierenden ihr Hintergrundwissen über die Gestaltung von Spezialpulvern und -granulaten.

They use the data provided to derive particle size-property correlations for process optimisation.

Using their own data and literature results, students work out optimum parameters with regard to various material or process parameters.

• Strickstrock, Monika

• Jahns, Katrin
• Strickstrock, Monika