FACULTY OF ENGINEERINGDEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING


Ayşe Merve Genç

Ayşe Merve Genç
Room No: 
D209
Telephone: 
+90 (312) 210-5842
Fax: 
+90 (312) 210-2518
E-mail: 
aygenc@metu.edu.tr
Education: 

B.S:  Mining Engineering Department, Hacettepe University, Ankara, TURKEY (2007)

M.Sc: Norman B. Keevil Institute of Mining Engineering, University of British Columbia, Vancouver, CANADA (2009)

Ph.D: Metallurgical and Materials Engineering, Middle East Technical University (2010-ongoing)

Research Interests: 

Analytical Electron Microscopy (TEM, SEM)

Permanent Magnetism, Metallic Glasses

AlNiCo Alloys

Nanopowders

Assisted Courses / Laboratories: 

Structure of Materials (METE 565)
Advanced Optical Techniques (METE 508) 

Thesis / Research Information: 

Thesis Research/Title: THE SYNTHESIS AND CHARACTERIZATION OF ALNICO MICRO AND NANOPOWDERS

 

Supervisor: Assist. Prof. Dr. Y. Eren Kalay

Permanent magnets have been recently attracted much interest due to their unique ability to retain magnetization. In the recent years, the increasing demand of new electric drive motors particularly in hybrid and electric cars require sophisticated magnets with high coercivity, high magnetic flux and high operating temperatures. Among the variety of permanent magnets, investigations on the AlNiCo alloys were overlooked due to the increase in the demand for high coercivity rare earth based permanent magnets. Accordingly, the study proposed is concentrated on aluminum-nickel-cobalt based permanent magnets. AlNiCo magnets have high remanent force (Br) similar to rare-earth magnets, better corrosion resistance and higher Curie temperature relative to rare-earth magnets. On the other hand, they easily lose the magnetic properties due to the low coercivity. Coercivity may increase with the decrease in particle size and reaches the maximum peak value when single-domain size is obtained. In case of particle sizes smaller than the optimum value, coercivity again decreases due to thermal effects and newly formed defects. In this project, AlNiCo 5-7 alloy powders will be synthesized in micron and nano sizes and the optimum particle size and microstructure corresponding tooptimum magnetic properties will be determined.