455-0500/01 – Electrotechnical Materials (ETM)

Gurantor departmentDepartment of Measurement and ControlCredits4
Subject guarantorIng. Jaromír SkotnicaSubject version guarantorIng. Jaromír Skotnica
Study levelundergraduate or graduateRequirementCompulsory
Year1Semestersummer
Study languageCzech
Year of introduction1999/2000Year of cancellation2004/2005
Intended for the facultiesFEIIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
SKO33 Ing. Jaromír Skotnica
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Part-time Credit and Examination 3+1

Subject aims expressed by acquired skills and competences

Aim of the subject is to give the learner essential theoretical and practical knowledge from areas of electrotechnical materials. Acquired knowledge allows students right selection from electrotechnical materials during construction and projection of electrotechnical and electronical devices.

Teaching methods

Summary

Aim of the subject is to give the learner essential theoretical and practical knowledge from areas of electrotechnical materials. Acquired knowledge allows students right selection from electrotechnical materials during construction and projection of electrotechnical and electronical devices. Purpose of the study is to give the learner essential theoretical and practical knowledge from areas of electro-technical materials. Students are familiarized with basic theoretical knowledge of structure of electrotechnical materials like insulating materials, conductors, resistive materials, semiconductors and magnetic materials. Further then with their electrical and physical features and areas of their usage. During the practical part students measure tasks from areas of insulating materials, conducting materials, magnetic materials, semiconducting materials and structures.

Compulsory literature:

[1] Hassdenteufel and wheels.: Electrotechnical materials, Bratislava, ALPHA-SNTL 1978. [2] Brandstetter,P.-Kuca: Materials and technology, laboratory practising. Ostrava, VSB 1987. [3] Ondrak, J. - Pinos, Z.: Strands electronic arrangement II, part 1. Brno, VUT faculty of electrotechnic 1981. [4] Drápal, S.: Materials and technology I. Prague, CVUT faculty of electrotechnic 1979. [5] Sandera, J.: Physics and technology of electrotechnical materials, semiconductor materials. Brno, VUT faculty of electrotechnic 1971. [6] Benda, V.: Structure and characteristics materials II- semiconductors. Brno, VUT faculty of electrotechnic 1987. [7] Liedermann Chas - Kazelle J.: Structure and characteristics materials III, practising. Brno, VUT faculty of electrotechnic 1981. [8] Formanek B.: Materials and technology I, II - instruction on practising. Bratislava, Alpha, publishing of engineering and economically literature

Recommended literature:

Way of continuous check of knowledge in the course of semester

Conditions for credit: For absolving of the exercise it is necessary to, measuring of restrained tasks č.2, one task from tasks 3, 4, 5, task No . 6, one task from Nos . 7, 8 and task No . 9.

E-learning

Other requirements

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: I. INTRODUCTION,STRUCTURE AND FEATURES STUFFES 1. Classification of electrotechnical materials by interatomic structure and by aspect band theory. 2. Elementary particle, atom - basic structural component stuffes, quantum number, energy levels. 3. Basic band theory and classification of material, partition stuffes by interatomic structure and by specific resistance. 4. Molecule - structure matter, crystal and amorphous structure stuffes, structure plastic and glasses. II. INSULATING MATERIALS 1. Clasification of insulating materials by aspect band theory, electrical conductivity of solid, fluent and liquid insulating materials 2. Polarize of dielectric (neutral and dipole molecules), standard type polarization. 3. Polarization in equable electric field, absolute permittivity insulating materials. 4. Polarization in alternating electric field (complex permittivity, frequency dependence of absolute permittivity, dielectric loss factor, substitution diagram shunt and serial. 5. Specific dielectric strength of solid, liquid and fluent insulating materials and electric breakdown. 6. Insulating materials non-electrical characteristics ( tensile properties ,heat characteristics, grade of isolation, environmental resistance, insulating material ageing). 7. Inorganic sealing material,characteristic survey, snap to organic. 8. Mica and micaceous products. 9. Glass and ceramic insulating material. 10. Silicon - organic masses, silicone. 11. Liquid and fluent insulating material. 12. Wax, distribution and characteristics 13. Synthetic matters prepared polymerization. 14. Synthetic matters prepared polycondensation. 15. Filamentous sealing material and rubber. III. SEMICONDUCTORS. 1. Fundamental parametres of semiconductor materiales, band model, Fermi - Diracova statistics. 2. I-type and impurity semiconductors, movement electron in crystal. 3. Current carrier in semiconductor, recombination and life carrier. 4. Carrier mobility, temperature dependence volubility, uneven distribution carrier in semiconductor. 5. Temperature effect and strong electric field on characteristics semiconductor, photo-conductivity. 6. Influence electromagnetic field on characteristics semiconductor, luminescent effect in semiconductor. 7. Elektrono-hole junction, junction metal - semiconductor, junction P - N and his characteristics. 9. Rectifier equation and capacitance P - N junction. 10. Semiconductors materials, basic characteristic and meaning, elementary semiconductors, semiconductor coupondes, oxide semiconductors, organic semiconductors. 11. Methods growth semiconductors crystal and their cleaning, Czochralski method and zone refinery. IV. CONDUCTING MATERIALS 1.Conducting materials, electronic conduction and band model, Fermi - Dirac statistics, fundamental electron conductivity. 2. Superconduction and superconductor. 3. Materials with high conductivity, conductor and materials on contact. 4. Resistive materials, characterization, material types and characteristics. 5. Thermoelectric properties metals, thermocouple. V. MAGNETIC MATERIALS. 1. Fundamental terms and definition from theory about magnetism. Magnetic moment of electron and atom,diamagnetism and paramagnetism. 2. Ferromagnetism, spontaneous magnetization and exchange forces, Curie temperature, antiferromagnetism, ferimagnetismus, magnetic anisotropy. 3. Magnetization curves, primary magnetization curve, commutation curve, hysteresis loop. 4. Permeability (types), remanence, coercivity, energy product. 5. Feromagnetic materials at alternating magnetization, magnetization curves, technical Curie point, losses at alternating magnetization. 6. Feromagnetic materials, distribution, types, properties. 7. Soft-magnetic bulk materials. 8. Magnetically hard bulk materials. 9. Powdered metal ferro-magnetic materials and bulk materials with special properties. 10. Ferity,structure, characteristics, brief description technology of production. Laboratories: 1) Introduction into practising, tuition of the safety of the work in electrotechnic laboratory, apprise of exercise. 2) Conductivity and dielectric absorption solid insulating materials. 3) Specific inductive capacity and loss factor dielectrics in frequency range 0,6 till 10 kHz (bridge method). 4) Specific inductive capacity and loss factor dielectrics at high frequency 1 till 10 MHz (tuned method). 5) Characteristics of feroelektrik. 6) Conductive and resistive materials (temperature dependence of resistance). 7) Measurement voltage dependencies of capacities of P- N passage. 8) Measurement of the fundamental constants and characteristics varistors. 9) Measurement of the magnetization characteristics ferro-magnetic materials.

Conditions for subject completion

Part-time form (validity from: 1960/1961 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 40 (40) 0
                Laboratory work Laboratory work 40  0
        Examination Examination 60 (60) 0
                Written examination Written examination 30  0
                Oral Oral examination 30  0
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2004/2005 (B2612) Electrical Engineering and Computer Science (3907R001) Electrical Power Engineering K Czech Ostrava 1 Compulsory study plan
2003/2004 (B2612) Electrical Engineering and Computer Science (3907R001) Electrical Power Engineering K Czech Ostrava 1 Compulsory study plan
2002/2003 (B2612) Electrical Engineering and Computer Science (3907R001) Electrical Power Engineering K Czech Ostrava 1 Compulsory study plan
2001/2002 (B2612) Electrical Engineering and Computer Science (3907R001) Electrical Power Engineering K Czech Ostrava 1 Compulsory study plan
2000/2001 (B2612) Electrical Engineering and Computer Science (3907R001) Electrical Power Engineering K Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner