Research of new materials

Garant předmětu:

Pavel Ctibor

Lecturer:

Pavel Ctibor

Tutor:

Pavel Ctibor

Supervisor:

Department of Electrotechnology

Synopsis:

The course will cover the topics of materials such as Piezoelectrics, pyroelectrics and ferroelectrics without lead, Multiferroics, Special magnetic elements, Carbon materials and carbon nanomaterials, Bio-inspired materials and hybrid organic inorganic materials, Polymers and composites containing polymer for electrical engineering, Nanofibers, Metals ( ODS, HEA alloys) with controlled content of amorphous / crystalline / nanocrystalline mass, Metals with extreme dependence of electrical resistance on temperature, mechanical load and its influence on material behavior, Carbides and nitrides (MAX phase). Critical methods for study of these materials will be discussed - Characterization of materials by diffraction and spectroscopic techniques, Characterization of materials by microscopy (SEM, TEM, polarized light, confocal), Characterization of materials by impedance analyzers, Modeling and simulation of temperature and el. fields.

Requirements:

Students must obtain the Aseesment based on reports from laboratory measurements and test results and pass the final exam.

Previous recommended knowledge: Physics 1,2; Elmag. field.

Basic knowledge in production of metals, semiconductors, ceramic and polymer insulators. Solid state physics. Characterization of materials.

The knowledge can be completed on Moodle from the materials for the subjects AE0B13NNT, AE1B13MVE and A1B13MVE.

Syllabus of lectures:

Topics:

- Lead-free piezoelectrics, pyroelectrics and ferroelectrics

- Multiferroics and special magnetics

- Carbon materials and carbon nanomaterials

- Bio-inspired materials and hybrid organic-inorganic materials

- Polymers and polymer containing composites for electrical engineering, nanofibres

- Metals with extraordinary dependences of electric resistance on temperature, mechanical load or processing

- Carbides and nitrides (MAX phases)

- Metals (ODS alloys, HEA) with controlled content of amorphous/crystalline/nanocrystalline matter

Each class of materials should be addressed from five standpoints:

Microstructure, properties, production techniques, detection and characterization techniques, applications.

Syllabus of tutorials:

1. Excursion FzU AVCR - magnetic materials

2. Exercise - measurement of dielectric properties in dependence on frequency

3. Excursion UFP AVCR - ceramic insulators and dielectrics

4. Exercise - measurement of dielectric properties in dependence on temperature

5. Excursion FzU AVCR - lasers, materials for laser techniques (Hilase - Dolní Břežany)

6. Excursion UOCHB AVCR (biomaterials)

7. Exercise - measurement of dielectric properties in various sweeping regimes

8. Case study - devitrification (Ctibor)

9. Exercise - measurement of M-H loops in ferromagnetic Heusler alloys using a magnetometer at FzU AVCR (Zemen)

10. Case study - bioinspired material

11. -

12. Case study - semiconductors (Sedlacek)

13. -

14. Assesment test

Study Objective:

The subject will use the impedance analyzer Keysight NO Concept 70, which will be simultaneously used for teaching other subjects, e.g. doctoral subject Physics of dielectrics. In Exercises 2, 4, and 7, the instrument range includes frequencies from 1 MHz to 3 GHz and temperatures from -160 to + 400 ° C. It will be able to measure ceramic dielectrics of various properties, including extremely low-loss and including substances with transformation temperatures in the order of hundreds of degrees Celsius. Students will be acquainted with the measurement and evaluation of results from a device belonging to the absolute world top in their class.

Study materials:

[1] Michel W. Barsoum: MAX Phases:Properties of Machinable Ternary Carbides and Nitrides, Wiley, 2013, ISBN: 978-3-527-33011-9.

[2] Jiri George Drobny: Polymers for Electricity and Electronics: Materials, Properties, and Applications, Wiley, 2012, ISBN: 978-0-470-45553-1.

[3] B.S. Murty, Jien-Wei Yeh, S. Ranganathan, High-Entropy Alloys, 1st Edition, Elsevier, 2014, ISBN: 9780128002513.

[4] Yury Gogotsi, Volker Presser, Carbon Nanomaterials, 2nd Edition, CRC press (Taylor & Francis Group), Boca Raton, FL, USA, 2017, ISBN 9781138076815.

[5] Junling Wang: Multiferroic Materials: Properties, Techniques, and Applications, CRC press (Taylor & Francis Group), Boca Raton, FL, USA, 2017.

Note:

Time-table for winter semester 2023/2024:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Mon
Tue	roomT2:C4-261 Ctibor P. 16:15–17:45 (lecture parallel1) Dejvice Laboratoř 261
Wed
Thu
Fri

Time-table for summer semester 2023/2024:

Time-table is not available yet

The course is a part of the following study plans:

• Doctoral studies, daily studies (compulsory elective course)
• Doctoral studies, combined studies (compulsory elective course)