SubjectsSubjects(version: 855)
Course, academic year 2019/2020
  
Characterization of Particles and Microstructures - AM107013
Title: Characterization of Particles and Microstructures
Guaranteed by: Department of Glass and Ceramics (107)
Actual: from 2019
Semester: winter
Points: winter s.:5
E-Credits: winter s.:5
Examination process: winter s.:
Hours per week, examination: winter s.:3/0 Ex [hours/week]
Capacity: 10 / unknown (unknown)
Min. number of students: unlimited
Language: English
Teaching methods: full-time
Level:  
For type: Master's (post-Bachelor)
Note: course can be enrolled in outside the study plan
enabled for web enrollment
Guarantor: Pabst Willi prof. Dr. Dipl. Min.
Annotation -
Last update: Pabst Willi prof. Dr. Dipl. Min. (15.02.2018)
This course provides a comprehensive overview on the methods used for the characterization of particles, particle systems and microstructures of heterogeneous materials, including nanoparticles, nanocrystalline and nanoporous materials. In the first part parameters for the description of the size, shape and arrangement of particles, grains and pores in microstructures are defined and the statistics of small particles, grains and pores is explained, including quantiles, mean values, moments and moment ratios. In the second part the different methods for the characterization of particles, grains and pores are treated in some detail, from sedimentation methods, laser diffraction, dynamic light scattering, image analysis, X-ray diffraction, adsorption methods and mercury porosimetry to less popular methods for the characterization of particles and microstructures. A special focus of this course is the evaluation of planar sections of the microstructure using stereological relations and the use of integral transformations for the correction of the random section problem. In two lectures also sintering and disperse systems are briefly treated, including suspensions and nanofluids and methods for characterizing their electrokinetic behavior. The course is suitable for students of all fields of chemistry and materials science and engineering. It can be particularly recommended for everyone interested in characterizing systems of small particles or microstructures of heterogeneous materials.
Aim of the course
Last update: Pabst Willi prof. Dr. Dipl. Min. (22.02.2018)

Students will be able to:

correctly use all concepts related to the size and shape of particles, grains and pores,

correctly interpret size distributions of particles, grains and pores based on the statistics of small particles,

understand the relations between particles, disperse systems and granular microstructures,

use the correct terminology for the presentation of results and understand the theoretical fundamentals of common characterzation methods for particles and microstructures to the degree necessary to take full advantage of the current special literature in the field,

make qualified choices of suitable methods for the characterization of particles, disperse systems and the microstructure of heterogeneous materials, including porous materials, and correctly use these methods,

correctly apply stereological relations for the quantitative characterization of microstructures and integral transformations for correcting the random section problem when determining size distributions.

Literature
Last update: Kubová Petra Ing. (14.01.2018)

R - Allen T.: Particle Size Measurement (two volumes, fifth edition). Chapman & Hall, London 1997. (ISBN 0-412-75350-2).

R - van de Hulst H. C.: Light Scattering by Small Particles. Dover, New York 1981. (ISBN 0-486-64228-3).

R - Xu R.: Particle Characterization - Light Scattering Methods. Kluwer Academic Publishers, Dordrecht 2000. (ISBN 1-4020-3-0357-9).

R - Gregg S. J., Sing K. S. W.: Adsorption, Surface Area and Porosity (second edition). Academic Press, London 1982. (ISBN 0-12-300956-1).

R - Russ J. C., Dehoff R. T.: Practical Stereology (second edition). Kluwer Academic, New York 2000. (ISBN 0-306-46476-4).

Learning resources
Last update: Pabst Willi prof. Dr. Dipl. Min. (22.02.2018)

Pabst W., Gregorová E.: Characterization of particles and particle systems. VŠCHT Praha 2007 (accesssible via

http://www.vscht.cz/sil/keramika/Characterization_of_particles/CPPS%20_English%20version_.pdf ).

Pabst W., Gregorová E., Uhlířová T.: Microstructure characterization via stereological relations — A shortcut

for beginners (accessible via https://www.sciencedirect.com/science/article/pii/S1044580315001291/pdfft?md5=67921b46354613a1ca14786d6894f8fe&pid=1-s2.0-S1044580315001291-main.pdf )

Syllabus -
Last update: Pabst Willi prof. Dr. Dipl. Min. (15.02.2018)

1. Introduction (equivalent diameters and statistical measures of particle and nanoparticle size)

2. Size, shape and surface of particles and nanoparticles, grains and pores; fractals

3. Particle packing and sintering

4. Statistics of small particles I: Empirical distributions and statistical characteristics

5. Statistics of small particles II: Analytical distribution functions, moments, moment ratios

6. Sedimentation Analysis, suspensions, nanofluids and aerosols

7. Adsorption of gases and its use for the characterization of particles and porous materials

8. Laser diffraction I: Theory (from Maxwell theory to Mire theory, Fraunhofer, Rayleigh)

9. Laser diffraction II: Practical use and possibilities of applications

10. Dynamic light scattering (DLS) for nanoparticles and other methods for the characterization of particles and suspensions (ELS, OPC, ESA)

11. Stereological characterization of microstructures via microscopic image analysis

12. Determination of grain and pore size distributions, tomographic methods, Hildebrand-Ruegsegger local thickness measure

13. Grain size determination by X-ray diffraction and inclusion size determination by small-angle scattering (SAXS, SANS)

14. Mercury porosimetry and other methods for characterizing the microstructure of porous materials

Entry requirements
Last update: Pabst Willi prof. Dr. Dipl. Min. (15.02.2018)

In order to enroll for this course the student must have a bachelor (B.Sc.) or comparable degree in chemistry, materials science and technology or a related field.

Course completion requirements
Last update: Pabst Willi prof. Dr. Dipl. Min. (14.02.2018)

In order to become eligible for classification the student has to pass a written qualification test. The final exam is oral and concerns the content of the whole lecture course.

Teaching methods
Activity Credits Hours
Účast na přednáškách 1,5 42
Příprava na přednášky, semináře, laboratoře, exkurzi nebo praxi 1,5 42
Příprava na zkoušku a její absolvování 2 56
5 / 5 140 / 140
Coursework assessment
Form Significance
Regular attendance 30
Examination test 30
Oral examination 40

 
VŠCHT Praha