Structural, electrical and magnetic properties of rare earth doped spinel ferrites PDF Download
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Author: Dr. Yogiraj Vijapure
Publisher: Ashok Yakkaldevi
ISBN: 1387634194
Category : Art
Languages : en
Pages : 127
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Book Description
The first natural magnetic material found to man in pre historic time was magnetite (Fe3O4), which is now known as ferrous ferrite. The story of ferrites begins with the search for ferromagnetic material of usual high resistivity to obtain reasonable low eddy current losses. When ferrimagnetic materials placed in alternating field, eddy current generates into them, which dissipates energy. These losses can be reduced by lamination of ferrimagnetic core to restrict eddy current. Since, eddy current losses are inversely proportional to the resistivity; they can be minimized by use of magnetic materials of high resistivity. Ferrites having resistivity of up to 107Ωm as compared to 10-7Ωm of iron, reduces the eddy current losses in them to a negligible value, even at microwave frequencies.
Author: Dr. Yogiraj Vijapure
Publisher: Ashok Yakkaldevi
ISBN: 1387634194
Category : Art
Languages : en
Pages : 127
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Book Description
The first natural magnetic material found to man in pre historic time was magnetite (Fe3O4), which is now known as ferrous ferrite. The story of ferrites begins with the search for ferromagnetic material of usual high resistivity to obtain reasonable low eddy current losses. When ferrimagnetic materials placed in alternating field, eddy current generates into them, which dissipates energy. These losses can be reduced by lamination of ferrimagnetic core to restrict eddy current. Since, eddy current losses are inversely proportional to the resistivity; they can be minimized by use of magnetic materials of high resistivity. Ferrites having resistivity of up to 107Ωm as compared to 10-7Ωm of iron, reduces the eddy current losses in them to a negligible value, even at microwave frequencies.
Author: Sagar Shirsath
Publisher: GRIN Verlag
ISBN: 3640977890
Category : Science
Languages : en
Pages : 169
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Book Description
Doctoral Thesis / Dissertation from the year 2010 in the subject Physics - Nuclear Physics, Molecular Physics, Solid State Physics, Dr. Babasaheb Ambedkar Marathwada University (-), course: PH.D., language: English, abstract: Wide scope is available to study these aspects of ferrite which at present to our knowledge was not probe by researchers. In relevance to the ever expanding possibilities, and potential that is available with the ferrite materials, the scope of presently undertaken work is designed carefully by selecting suitable ferrite and dopants. A sincere attempt was made to extract fruitful, exhaustive and, systematic information regarding structural, cation distribution, electrical, dielectric and magnetic aspects of the ferrite systems under investigations. In the present study, the properties of nickel ferrites substituted by diamagnetic Zn2+, non-magnetic trivalent In3+ ions and tetravalent Ce4+ ions are studied for various compositions. The properties are investigated with a view to understand the effect of divalent, trivalent and tetravalent substitution in nickel ferrite. The thesis consists of five chapters. Chapter 1 related to Scope, problem statement, theory of magnetism, ferrites, background, motivation and aim of the present work, properties of the samples under investigations, objective and outline of thesis. Chapter 2, 3 and 4 related to results and discussion of structural, electrical and magnetic properties of Ni1-xZnxFe2O4, NiInxFe2-xO4 and Ni1-2xCexFe2O4 ferrite system respectively. Chapter 5 gives the summary, discussion and conclusion on Zn, In and Ce substituted nickel ferrite. On summarizing the results obtained on Ni-Zn, Ni-In and Ni-Ce spinel ferrites it can be concluded that; - The structural properties are found to be varying in all the three systems. The lattice parameter of Ni ferrite systems increases with increasing valancy of dopants (Zn2+, In3+ and Ce4+). - The other prominent parameter of our structural study i.e. p
Author: Eric Charles Snelling
Publisher: Butterworth-Heinemann
ISBN:
Category : Science
Languages : en
Pages : 392
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Book Description
Expanded edition of the 1969 work on the theory, data, and procedures required for the design of ferrite cored devices. Covers the technically important properties of magnetically soft ferrites at frequencies up to 100 MHz, and the application of those ferrites to inductors, transformers and related devices. A comprehensive list of references and bibliography follow each chapter. Annotation copyrighted by Book News, Inc., Portland, OR
Author: Surender K. Sharma
Publisher: Springer Nature
ISBN: 3030799603
Category : Technology & Engineering
Languages : en
Pages : 480
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Book Description
This book highlights the complexity of spinel nanoferrites, their synthesis, physio-chemical properties and prospective applications in the area of advanced electronics, microwave devices, biotechnology as well as biomedical sciences. It presents an overview of spinel nanoferrites: synthesis, properties and applications for a wide audience: from beginners and graduate-level students up to advanced specialists in both academic and industrial sectors. There are 15 chapters organized into four main sections. The first section of the book introduces the readers to spinel ferrites and their applications in advanced electronics industry including microwave devices, whereas the second section mainly focus on the synthesis strategy and their physio-chemical properties. The last sections of the book highlight the importance of this class of nanomaterials in the field of biotechnology and biomedical sector with a special chapter on water purification.
Author: Jitendra Pal Singh
Publisher: Woodhead Publishing
ISBN: 012823718X
Category : Technology & Engineering
Languages : en
Pages : 928
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Book Description
Ferrite Nanostructured Magnetic Materials: Technologies and Applications provides detailed descriptions of the physical properties of ferrite nanoparticles and thin films. Synthesis methods and their applications in numerous fields are also included. And, since characterization methods play an important role in investigating the materials’ phenomena, various characterization tools applied to ferrite materials are also discussed. To meet the requirements of next-generation characterization tools in the field of ferrite research, synchrotron radiation-based spectroscopic and imaging tools are thoroughly explored.Finally, the book discusses current and emerging applications of ferrite nanostructured materials in industry, health, catalytic and environmental fields, making this comprehensive resource suitable for researchers and practitioners in the disciplines of materials science and engineering, chemistry and physics. Reviews the fundamentals of ferrite materials, including their magnetic, electrical, dielectric and optical properties Includes discussions on the most relevant and emerging synthesis and optimization of ferrite nanostructured materials for a diverse range of morphologies Provides an overview of both the most relevant and emerging applications of ferrite magnetic materials in industry, health, energy and environmental remediation
Author: Bibhu Prasad Swain
Publisher: Springer Nature
ISBN: 9811683913
Category : Technology & Engineering
Languages : en
Pages : 439
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Book Description
This book presents recent advances in nanostructured materials. It describes the characterization of nanomaterials, their preparation methods and performance testing techniques; the design and development of nano-scale devices; and the applications of nanomaterials, with examples taken from different industries, such as energy, bioengineering and medicine. The book is broadly divided into sections such as nanostructure semiconductor materials for device applications, nanostructured ferroelectric and ferromagnetic materials.. The topics covered include experimental approaches of device fabrication, photovoltaics and supercapacitors applications, etc. Given the contents, the book will be useful for students, researchers, and professionals working in the area of nanotechnology and nanomaterials.
Author: Dr. Vidya Jaisingrao Deshmukh
Publisher: Lulu.com
ISBN: 1794722645
Category :
Languages : en
Pages : 192
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Book Description
Author: Maaz Khan
Publisher: BoD – Books on Demand
ISBN: 1837699445
Category : Technology & Engineering
Languages : en
Pages : 148
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Book Description
This book presents an overview of the status and recent trends in ferrites. It provides readers with a clear understanding of both the theory and applications of ferrites. It also discusses challenges, opportunities, and new directions for the future development of ferrite technology. The book provides fundamental knowledge and up-to-date information to enable advanced study in the field and is therefore a useful resource for research students, scientists, engineers, and materials scientists.
Author: Olena Fesenko
Publisher: Springer
ISBN: 3319564226
Category : Science
Languages : en
Pages : 871
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Book Description
This book presents some of the latest achievements in nanotechnology and nanomaterials from leading researchers in Ukraine, Europe, and beyond. It features selected peer-reviewed contributions from participants in the 4th International Science and Practice Conference Nanotechnology and Nanomaterials (NANO2016) held in Lviv, Ukraine on August 24-27, 2016. The International Conference was organized jointly by the Institute of Physics of the National Academy of Sciences of Ukraine, Ivan Franko National University of Lviv (Ukraine), University of Tartu (Estonia), University of Turin (Italy), and Pierre and Marie Curie University (France). Internationally recognized experts from a wide range of universities and research institutions share their knowledge and key results on topics ranging from nanooptics, nanoplasmonics, and interface studies to energy storage and biomedical applications.
Author: Susheel Kalia
Publisher: Elsevier
ISBN: 032395846X
Category : Technology & Engineering
Languages : en
Pages : 384
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Book Description
Magnetic Nanoferrites and their Composites: Environmental and Biomedical Applications addresses recent developments in this important research field. The book covers the latest synthesis and fabrication techniques, properties, characterization and multifunctional biomedical and environmental applications. Chapters provide cutting-edge research while addressing the latest scenarios, recent developments, future aspects, and challenges and opportunities attributed to their excellent properties, including large surface-to-volume ratio, high chemical stability, low eddy losses, moderate values of saturation magnetization and coercivity, large adsorption, non-toxicity, bio-degradable and biocompatibility. This book will be a valuable reference resource for researchers, engineers and technologists working in this important research field. Magnetic nanoferrites and their composites are now utilized in a broad range of different application fields such as catalysis, biomedicine, magnetic resonance imaging (MRI), tissue targeting, drug delivery, sensors, environmental remediation, data storage, transformers, switching devices, high frequency and microwave devices. Provides a systematic, comprehensive review on recent progress in magnetic nanoferrites and their related composites Presents the latest synthesis techniques required for fabricating magnetic nanoferrites and their composites Addresses the latest research towards enhancing the magnetic and photocatalytic degradation characteristics of magnetic nanoferrites and their composites
