Course detail

Transfer Phenomena in Materials Science

FCH-MC_PJMIAcad. year: 2024/2025

Transfer phenomena, fundamental concept, continuous medium, balance of mass, differential forms, intensive/extensive quantities, vector differential operations. Extensive quantities depend on volume or mass, quantities depend on area, flow of extensive quantity, substance balance. Transfer of momentum, Navier-Stokes equation, viscosity, newton and nonnewton fluids. Transfer of heat (energy) stationary and non stationary conduction, convection radiation. Stationary and non stationary transfer of mass, diffusion coefficient. Molecular theory of kinetics, theory of activated complex, stochastic theory, diffusion in crystals. Nucleation and crystal growth. Evaluation of kinetics and mechanisms of processes in solid phases. Sintering. Melt crystallization, Modification transition. Thermal decomposition of solid compounds. Reaction of solid mater with liquids. Reaction of solid mater with gases. Reaction of two solid phases.

Language of instruction

Czech

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

prof. Ing. Petr Ptáček, Ph.D.

Department

Institute of Materials Science (ÚCHM)

Entry knowledge

Basic knowledge of mathematics, physics, physical chemistry, silicate technology and chemical engineering.

Rules for evaluation and completion of the course

Oral examination (15-20 min, without written preparation).
none

Aims

The aim of the course is to acquaint students with the basics of transfer phenomena (momentum sharing, steady and permanent energy and mass sharing) in relation to kinetic heterogeneous processes, synthesis and decomposition, or to reduce costs that can be processed in the production of materials. Acquisition of principles suitable for design and construction of technological units.
The student gains information about the influence of momentum, energy and mass sharing on the speed of processes in condensed systems and creates an image of optimization of conditions for preparation of materials with required technical properties.
Knowledge of mathematical models, which are used to describe processes taking place in bodies of various materials.
Knowledge of the course of isothermal and non-isothermal reactions in heterogeneous systems where substances transfer between phases.
Knowledge of the steps and morphological processes that describe sintering, crystallization, dissolution and phase transformation.
Knowledge of reaction of solids with gases and reaction of two solid phases.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Bird B. R., Steward W. E., Lightfoot E. N.: Přenosové jevy. Sdílení hybnosti, energie a hmoty. Academia, Praha 1968. (CS)
Míka V.: Základy chemického inženýrství. SNTL, Praha, 1977. (CS)
R. David, G. Geiger. Transport Phenomena in Materials Processing, Springer, 2016. (CS)
Šatava V. : Fyzikální chemie silikátů II. VŠCHT Praha, Praha 1987. (CS)

Type of course unit

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Ing. Petr Ptáček, Ph.D.

Syllabus

1) Conservation laws, continuum, dissipation principle
2) Constitutive equations and constitutive assumptions
2) Steady and unsteady diffusion
3) Steady and unsteady heat transfer
4) Momentum transport, viscosity
5) Molecular kinetics theory
6) Transition state theory and stochastic processes
7) Nucleation and crystal growth
8) Kinetics of heterogeneous processes - isotremic methods
9) Kinetics of heterogeneous processes - non-isothermal methods
10) Sintering
11) Modification transformations
12) Thermal decomposition of solids and their dissolution in the melt
13) Reactions of solid with gases and reactions of two solid phases

Guided consultation in combined form of studies

26 hod., optionally

Teacher / Lecturer

prof. Ing. Petr Ptáček, Ph.D.

Elearning

eLearning: currently opened course