Course detail

Introduction to Materials for Electrotechnics

FEKT-BKC-UMEAcad. year: 2022/2023

The subject provides basic knowledge in the field of materials for electrotechnics and electronics. The subject familiarizes students with the basic concepts, classification and distribution of substances. The main focus is on metallic conductors, semiconductors, dielectrics and magnetics materials.

Language of instruction

Czech

Number of ECTS credits

3

Mode of study

Not applicable.

Learning outcomes of the course unit

At the end of the course, the student will be able to:
- be knowledgeable in electronic and electrical materials,
- classify electrical materials according to electric conductivity and behavior in electric and magnetic fields,
- describe typical properties and parameters of particular categories of electrical materials and links between these properties and material structure and composition,

Prerequisites

The subject knowledge on the secondary school level is required.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations. They include lectures, exercisesand practical laboratories. Course is taking advantage of e-learning (Moodle) system.

Assesment methods and criteria linked to learning outcomes

Requirements for successful completion of the subject are specified by guarantor’s regulation updated for every academic year.

Course curriculum

1. Materials for electrical and electronic engineering. Composition, structure and regulation of the material`s properties. Crystalline and amorphous matters.
2. Metallic materials. Conducting and resistive materials. Solders, materials for electric contacts, thermoelements, fuses. Superconductors.
3. Semiconductors. Elemental and compound semiconductors. Intrinsic and extrinsic semiconductors. Thermodynamic equilibrium of charge carriers.
4. Organic and inorganic insulating materials. Dielectric materials. Piezoelectrics, electrets. Dielectric polarization and electrical conductivity. Losses in dielectics.
5. Magnetic phenomena in maters and their essences, dia-, para-, ferro-, ferri-, antiferro-magnetic.
6. Hard and soft magnetic, materials for transformers, recording technique, converters, etc. Losses in magnetic materials.
7. Materials for the production of printed circuits. Substrate materials. Plating materials. Methods of production of printed circuits. Solders.

Work placements

Not applicable.

Aims

The aim of the course is to acquaint students with materials for electrical and electronic engineering, with their classification and with their important properties. This information enables basic orientation in selection of materials for constructions of electrotechnical and electronic devices and equipments.

Specification of controlled education, way of implementation and compensation for absences

Attendance in seminars is compulsory. Excused seminars can be made up.
The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Drápala L., Kursa M., ELEKTROTECHNICKÉ MATERIÁLY, VSB, TUO, 2012 (CS)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme BKC-SEE Bachelor's 1 year of study, winter semester, compulsory

Type of course unit

 

Lecture

14 hod., optionally

Teacher / Lecturer

Syllabus

1. Materials for electrical and electronic engineering. Composition, structure and regulation of the material`s properties. Crystalline and amorphous matters.
2. Metallic materials. Conducting and resistive materials. Solders, materials for electric contacts, thermoelements, fuses. Superconductors.
3. Semiconductors. Elemental and compound semiconductors. Intrinsic and extrinsic semiconductors. Thermodynamic equilibrium of charge carriers.
4. Organic and inorganic insulating materials. Dielectric materials. Piezoelectrics, electrets. Dielectric polarization and electrical conductivity. Losses in dielectics.
5. Magnetic phenomena in maters and their essences, dia-, para-, ferro-, ferri-, antiferro-magnetic.
6. Hard and soft magnetic, materials for transformers, recording technique, converters, etc. Losses in magnetic materials.
7. Materials for the production of printed circuits. Substrate materials. Plating materials. Methods of production of printed circuits. Solders.

Laboratory exercise

26 hod., compulsory

Teacher / Lecturer

Syllabus

Úloha č. 1:
Měření hysterezních ztrát a ztrát vířivými proudy feromagnetických materiálů
Úloha č. 2:
Měření elementárního náboje pomocí Millikanova přístroje
Úloha č. 3:
Vliv osvětlení na vodivost polovodičových materiálů
Úloha č. 4:
Měření a vyhodnocení teplotní závislosti odporu termistorů
Úloha č. 5:
Měření vnitřního a povrchového odporu izolantů
Úloha č. 6:
Měření měrných ztrát feromagnetických materiálů osciloskopickou metodou
Úloha č. 7:
Měření teplotní závislosti rezistivity vodivých a odporových materiálů
Úloha č. 8:
Měření teplotní závislosti počáteční permeability feritů
Úloha č. 9:
Měření šířky zakázaného pásu polovodičového materiálu
Úloha č. 10:
Sledování vlivu teploty a kmitočtu na složky komplexní permitivity izolačních materiálů
Úloha č. 11:
Měření termoelektrického napětí kovů
Úloha č. 12:
Stanovení komplexní permitivity izolačních materiálů pomocí Scheringova mostu