COURSE UNIT TITLE

: SOL-GEL PROCESSING

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
MME 5011 SOL-GEL PROCESSING ELECTIVE 3 0 0 7

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

PROFESSOR DOCTOR ALI AYDIN GÖKTAŞ

Offered to

Nanoscience and Nanoengineering
Nanoscience and Nanoengineering
M.Sc. Metallurgical and Material Engineering
Metallurgical and Material Engineering
Nanoscience and Nanoengineering
Metallurgical and Material Engineering

Course Objective

Sol-gel processes are interesting from a scientific point of view as well as for new or potential applications. High purity submicron powders, nuclear fuels, electronic and ionic conductors, optic, optoelectronic and magnetic materials can be produced by this method. Sol-gel processing is also very useful and important when the production of reproducible homogeneous complex ceramic materials is necessary. The chemistry of precursors solutions, colloidal particles and sols, gelation, gels, phase transformations, sintering and applications of sol-gel ceramics will be discussed in this course.

Learning Outcomes of the Course Unit

1   To understand relationships in the range of solution preparation from several precursors and sintering process
2   To develop theoretical and experimental abilities in sol-gel processing
3   To understand formation of gelation and phases
4   To take further training on how to prepare new oxide ceramic materials
5   To take further training on how to prepare new non-oxide ceramic based thin films, bulk and powder materials with multifunctional properties

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Introduction: - Project assignments and brief explanations - Sols, gels and gelation - Outline of sol-gel processing - Recent development - Advantages and limitations of sol-gel processing
2 The chemistry of precursors solutions: - Solvents - Basis of precursors transformations in solutions - Metal salts solutions
3 The chemistry of precursors solutions: - Alkoxides solutions - Other precursors - Precursors mixing - Non-oxide solutions
4 Colloidal particles and sols: - Nucleation and growth of particles in a liquid medium - Powders not synthesized in liquid medium
5 Colloidal particles and sols: - Sols - Other phenomena in sols
6 Gelation: - Gelation and percolation models - Growth-gelation models - Experimental study of gelation - Gelation mechanism of ceramic materials
7 Gels: - Structure and clasification of gels - Jellerin kuruması - Drying gels - Properties of dry gels
8 Phase Transformations: - Chemical transformations at intermediate temperatures - Tapotactic crystallization - Glass formation - Crystallization by nucleation and growth - Conversion of oxides to non-oxides
9 Sintering sol-gel ceramics: - Texture evolution - Atomic transport mechanisms operating during sintering - Grain growth - Interaction of pores with the sintering process - Hot-pressing
10 Applications of sol-gel processsing - Applications in sol and gel states - Coatings and films - Fibers
11 Applications of sol-gel processsing -Monoliths - Filtration membrain -Sol-gel catalysis -Applications of hybrid and inorganic materials
12 Midterm exam
13 Presentation of term projects
14 Presentation of term projects

Recomended or Required Reading

Alan C. Pierre, Introduction to Sol-Gel Processing, The Kluwer Internatioanl Series in Sol-Gel Processing: Technology and Applications, Kluwer Academic Publishers, Boston, 1998.

Planned Learning Activities and Teaching Methods

Reading the related parts of the course material each week, attending the course and participating in class discussions are the requirements of the course. Any unethical behavior that occurs either in presentations or in exams will be dealt with as outlined in school policy. You can obtain the graduate policy at www.fbe.deu.edu.tr.

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE * 0.25 + ASG *0.25 +FIN *0.50
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE * 0.25 + ASG *0.25 +RST *0.50


*** Resit Exam is Not Administered in Institutions Where Resit is not Applicable.

Further Notes About Assessment Methods

Attendance of students will be evaluated.

Assessment Criteria

Mid-term exam 25 % + Project 25 % + Final exam 50 %

Language of Instruction

English

Course Policies and Rules

Students must be attended to course.

Contact Details for the Lecturer(s)

erdal.celik@deu.edu.tr

Office Hours

Friday 14:00-16:00

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Course hours 13 3 39
Preparation for midterm exam 1 16 16
Preparation for final exam 1 25 25
Preparing assignments 1 25 25
Preparations before/after weekly lectures 13 4 52
Midterm 1 3 3
Final 1 3 3
TOTAL WORKLOAD (hours) 163

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7
LO.12334544
LO.21225445
LO.33154544
LO.42445355
LO.52552455

CONTACT INFORMATION
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Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

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