653-3016/04 – Materials for special application (MSPn)
| Gurantor department | Department of Materials Engineering and Recycling | Credits | 4 |
| Subject guarantor | doc. Dr. Ing. Monika Losertová | Subject version guarantor | doc. Dr. Ing. Monika Losertová |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory type B |
| Year | 2 | Semester | winter |
| | Study language | English |
| Year of introduction | 2022/2023 | Year of cancellation | |
| Intended for the faculties | FMT | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Students will learn the following:
-understand the relationship between structure and properties of selected materials, enabling their special use.
-know selected technical materials from the perspective of their most effective use
-select the given material on the basis of knowledge of structure and properties
-optimise the structure in order to enhance the service properties
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
Materials with nano-crystalline structure. Basic physical-chemical and structural properties. Technique of preparation of nano-crystalline materials. Mechanical properties of nano-crystalline materials. Thermal stability of nano-crystalline structures. Perspectives for technical use.
- Amorphous metals. Basic characteristics of rapid cooling. Technological variants of preparation of amorphous metals.
Characteristics of amorphous metals, conditions of creation of amorphous conditions. Mechanical properties, magnetic properties, corrosion properties. Devitrification of amorphous metals. Perspectives of use.
- Selected refractory alloys in the equipment for conversion of power. General character of nickel and cobalt alloys. History of development. Classification from the viewpoint of development of technologies. Chemical constitution of nickel and cobalt alloys. Influence of individual alloying elements. Strength properties, strengthening phases, TPC phases. Perspectives of use, current directions of development.
- Materials for armouring of military vehicles. Overview of the current state of the art in the world. Basic principles of protection. Passive armouring, reactive armouring, active armouring. Armour protection of vehicles. Metallic armours, steel armours, armours made of aluminium and titanium based alloys. Non-metallic armours, aramid, polyethylene, glass fibres and laminates, ceramic armours. Transparent armours.
- Laminates, character and requirements, production technology - polymeric matrix – unsaturated polyesters, vinyl-ester bitumens, epoxide bitumens. Properties, basic types.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Continuous verification of learning outcomes:
full-time study form - 1 writen test, 4 writen programs during the semester;
combined study form - 1 semestral project.
Final verification of study results;
writen test, oral exam.
E-learning
TEAMS
Other requirements
There are no further requirements.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
- Introduction and overview of materials used in military, power engineering, aerospace and other areas. Development and present state of materials usage.
- Materials for armouring of military vehicles. Fundamental principles of protection. Passive armouring, reactive armouring, active armouring.
- Classification of armour protection according to the internal structure and structural arrangement. Homogenous armours, sandwich armours. Metallic armours - steels , aluminum or titanium alloys. Non-metallic armours – based on aramids, poly-ethylenes, glass fibres or laminates, ceramics. Transparent armours.
- Selected alloys used in equipment for conversion of power at elevated temperatures (gas turbines, turbo-reactive motors). History of development. Classification in term of technologies development; processing technologies of the alloys. General characteristics of nickel, iron and cobalt alloys. Perspectives of use, current directions of development.
- Structural parameters of Fe, Ni, or Co superalloys. Influence of alloying elements. Strength properties at low and elevated temperatures. Strengthening phases, TPC phases. Protection of alloys against oxidation; protective layers.
- Rapid solidification – basics of thermodynamics and kinetics; influence of cooling rate on the structure feature. Processing technologies of amorphous metals.
- Amorphous metals – basic properties of amorphous state. Thermodynamic and kinetic conditions, influences on homogenous nucleation of crystalline phases in the melt. Thermodynamic parameters TM, Tg, Tgr for preparing amorphous materials.
- Properties of amorphous metals: mechanical, magnetic and corrosisive. Devitrification of amorphous metals. Perspectives and limitation of use.
- Materials with nanocrystalline structure. Fundamental physical-chemical and structural properties. Techniques of preparation of nanocrystalline materials - condensation from gaseous phase, mechanical alloying, etc. Structures and purity of nanocrystalline materials.
- Mechanical properties of nanocrystalline materials. Thermal stability of nanocrystalline structures. Multi-phase nanocrystalline materials. Perspectives for technical use.
- Composite materials and laminates. Classification in term of phase composition. Characteristics and requirements, processing technologies.
- Polymeric matrix – unsaturated polyesters, vinyl-ester bitumens, epoxide bitumens. Properties, basic types.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction