Study of Complex Magnetic Permeability and Structural Properties of Nano Crystalline Fe-Cu-NI-Si-B (M=Mo, Cr & W) Alloys

Abstract

I would like to express my sincere and heartiest gratitude to research supervisor Prof. Dr. Shibendra Shekher Sikder, Department of Physics, Khulna University of Engineering & Technology (KUET) and Co-supervisor Dr. A. K. M. Abdul 1-lakiin, Chief Engineer, Materials Science Division (MSD), Atomic Energy Centre, Dhaka (AECD) for their pains taking help, continuous inspiration, advice and guidance through the progress of this work. I shall remain ever grateful to them. I am specially indebted to Dr. A. K. M. Abdul Hakim without whose efforts I could not have perfonied the experimental side of this work. I am deeply grateful to Dr. Dilip Kumar Shaha, P. S. 0. of MSD, AECD for his help in XRI) experiments and XRD analysis of this work. I would like to pay my deep respect to Prof. Dr. Md. Mahbub Alam, Department of' Physics, Khulna University oh engineering & lechnology (KUFT) fbi his inspiration and the conduction of theoretical papers on meteorology to fulfill this program. I am grateful to S. \4anjura Haque S.S.O. MSD of AECD for her generous help during the experimental work at AECD. I am thankful to all M. Phil. students specially Zakir Hoossin Khan, Lecture, Department of Physics, Fultala M. M. College, Bidhu Bhusion Sarkar, Lecturer, Department of Physics, Dumuria College, Khan Allal Uddin, Lecture, Department of -1 Physics, Public College, Shaheena Parvin, Lecturer, Department of Physics, Islamia College. Saroaut Noor, Assistant Professor, Department of Physics, Khulna Govt. Niohila College. who have started first this programme. I am also thankful to Alhamra Parvin, J.E.O. Anjummanara Bgum, R.A. Mr. Anwar, Ms. Sadia, Mr. Mohsin, Mr. Jewl, Ms. Arifa and Mr. Mostafiz of MSD for their constant help during my experimental work at AECD. I am grateful to mn' departmental Head and colleagues specially Md. Shalique Hossain, Lecturer, Department of Physics, Govt. B. L. College and Sanjib Ghosh, Assistant Professor. Department of Physics, Govt. B. L. College, Khulna for their vital sul)pout iii completing this work. I must express my gratitude to the KUET authority for starting M. Phil program and allowing me to cany out this work under Physics Department. My thanks are due to Director Atomic Energy Centre, Dhaka for his kind permission to use the Laboratoiy of Material Science Division, Atomic Energy Centre, Dhaka. Finally I express my appreciation to my beloved parents, wife, uncles, aunts, sisters and Pradipta for their constant encouragement and support.