Download or read book Structural electrical and magnetic properties of rare earth doped spinel ferrites written by Dr. Yogiraj Vijapure and published by Ashok Yakkaldevi. This book was released on 2022-09-13 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Preparation Characterization and Investigations of Electrical and Magnetic Properties of Some Ferrites written by Sagar Shirsath and published by GRIN Verlag. This book was released on 2011-08 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Soft Ferrites written by Eric Charles Snelling and published by Butterworth-Heinemann. This book was released on 1988 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Spinel Nanoferrites written by Surender K. Sharma and published by Springer Nature. This book was released on 2021-10-29 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Ferrite Nanostructured Magnetic Materials written by Jitendra Pal Singh and published by Woodhead Publishing. This book was released on 2023-04-28 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Advances in Nanostructured Materials written by Bibhu Prasad Swain and published by Springer Nature. This book was released on 2022-03-30 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book MAGNETISATION IN TERNARY SPINEL FERRITES written by Dr. Vidya Jaisingrao Deshmukh and published by Lulu.com. This book was released on with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Ferrites written by Maaz Khan and published by BoD – Books on Demand. This book was released on 2024-02-14 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Nanophysics Nanomaterials Interface Studies and Applications written by Olena Fesenko and published by Springer. This book was released on 2017-09-04 with total page 871 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Magnetic Nanoferrites and their Composites written by Susheel Kalia and published by Elsevier. This book was released on 2023-05-25 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Ferrites and Multiferroics written by Gagan Kumar Bhargava and published by Springer Nature. This book was released on 2021-12-16 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the fundamentals of ferrites and multiferroic materials with special attention to their structure, types, and properties. It presents a comprehensive survey about ferrite and multiferroic materials, in areas significant to research and development in academia as well as in industry. The book discusses various types of methods applied for their synthesis and characterizations. This book is concerned with the fascinating class of materials with the promise for wide-ranging applications, including electromagnets, magnetic fluid hyperthermia, antenna applications, memory devices, switching circuits, bio-medical applications, actuators, magnetic field sensors and water purification, etc.
Download or read book Ferroic Materials Based Technologies written by Inamuddin and published by John Wiley & Sons. This book was released on 2024-07-03 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: FERROIC MATERIALS-BASED TECHNOLOGIES The book addresses the prospective, relevant, and original research developments in the ferroelectric, magnetic, and multiferroic fields. Ferroic materials have sparked widespread attention because they represent a broad spectrum of elementary physics and are employed in a plethora of fields, including flexible memory, enormous energy harvesting/storage, spintronic functionalities, spin caloritronics, and a large range of other multi-functional devices. With the application of new ferroic materials, strong room-temperature ferroelectricity with high saturation polarization may be established in ferroelectric materials, and magnetism with significant magnetization can be accomplished in magnetic materials. Furthermore, magnetoelectric interaction between ferroelectric and magnetic orderings is high in multiferroic materials, which could enable a wide range of innovative devices. Magnetic, ferroelectric, and multiferroic 2D materials with ultrathin characteristics above ambient temperature are often expected to enable future miniaturization of electronics beyond Moore’s law for energy-efficient nanodevices. This book addresses the prospective, relevant, and original research developments in the ferroelectric, magnetic, and multiferroic fields. Audience The book will interest materials scientists, physicists, and engineers working in ferroic and multiferroic materials.
Download or read book Magnetic Spinels written by Mohindar Seehra and published by BoD – Books on Demand. This book was released on 2017-03-08 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic spinels including ferrites are insulating magnetic oxides and chalcogenides with strong coupling to microwave frequencies and low eddy current losses making them indispensable for applications in wireless communications. The 13 chapters and preface of this book discuss other potential applications of magnetic spinels along with various methods used for their synthesis and their varied properties resulting from substituting different metal ions at the A and B sites. These applications include ferrofluids, anticorrosion coatings, absorber coatings for photothermal conversion, biomedicine, and environmental applications such as oxidation of volatile organic compounds and removal of arsenic and heavy metals from water. Emphasis is placed on structure-property correlations and on the nature of magnetism in spinels and their nanoparticles with current information provided for future research.
Download or read book Ultrasonic Synthesis of Functional Materials written by Muthupandian Ashokkumar and published by Springer. This book was released on 2016-01-11 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins by giving a summary of sonochemistry and explains how a chemical reaction can be induced by the interaction of sound waves and gas bubbles in liquids. The work outlines how primary and secondary radicals combined with the physical effects generated during acoustic cavitation are active in the ultrasonic synthesis of a variety of functional materials. The brief covers hot topics that include ultrasonic synthesis of various functional materials covering the following broad areas: acoustic cavitation and sonochemistry, synthesis of functional polymers and their applications, synthesis of functional inorganic materials and their applications, improving functionality of food/dairy systems, synthesis of functional biomaterials and their applications, synthesis of graphene based catalytic materials. Theory is kept to a minimum. The book is aimed at individuals at universities and will also interest those in industry. It is suitable for all levels.
Download or read book Influence of Rare Earth on Structural Magnetic and Electrical Properties of Aluminum Doped Strontium Hexaferrite written by Dom Lal Kunwar and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Kunwar, Dom Lal. M.S. The University of Memphis. August 2015. Influence of Rare-earth on Structural, Magnetic and Electrical Properties of Aluminum Doped Strontium Hexaferrite. Major Professor: Sanjay R. Mishra, PhD. Among family of ferrites, M-type hexaferrites find host of industrial applications ranging from simple magnets to microwave devices. Improvement in magnetic and dielectric properties of ferrites is a continuous area of interest. The adapted strategies to bring in aforementioned desired improvements are via exploring various synthesis route and doping strategies including viz. magnetic, non-magnetic, and rare-earth atoms in ferrites. In view of the above, the present work studies in detail the effect of co-doping rare-earth (RE: Pr, Sm, and Gd) and aluminum in Sr0.82RE0.18Fe12-xAlxO19 (x=0.0, 0.5, 1.0, 1.5, 2.0) synthesized via autocombustion technique. Detailed synthesis, structural, magnetic, and electrical measurements of samples were performed towards understanding structural-magnetic-electrical property relationship. The variations in physical properties of as synthesized samples were understood in terms of rare-earth ion charge distribution, site occupancy of RE3+ and Al3+ ions, and grain size. The substitution of RE3+-Al3+ brings in grain refinement due to induced lattice strains upon accommodating doped ions. Gd3+-Al3+ displayed smallest crystallite size among all RE3+-Al3+ samples. The Al3+ substitution for Fe3+ brings in significant enhancement in coercivity but reduces magnetization due to magnetic dilution effect. Additional coercivity enhancement was possible with RE3+ doping without affecting the magnetization of samples. This is an important development towards producing high energy magnets. Among all RE3+ doped samples Pr3+ doped samples showed highest Curie temperature, (Tc4̃65 & ordm;C), while Gd3+ doped samples showed little variation in dielectric properties in GHz frequency range. This makes RE3+ doped samples as ideal candidate for high frequency microwave applications. From above observations Pr3+ with oblate charge distribution (negative Stevens constant) was observed to substitute well into the lattice consequently brining in desired improvements in physical properties of Sr0.82RE0.18Fe12-xAlxO19 ferrite.
Download or read book Bibliography written by Pierre Villars and published by Walter de Gruyter. This book was released on 2012-12-21 with total page 1827 pages. Available in PDF, EPUB and Kindle. Book excerpt: By browsing about 10 000 000 scientific articles of over 200 major journals mainly in a 'cover to cover approach' some 200 000 publications were selected. The extracted data is part of the following fundamental material research fields: crystal structures (S), phase diagrams (also called constitution) (C) and the comprehensive field of intrinsic physical properties (P). This work has been done systematically starting with the literature going back to 1900. The above mentioned research field codes (S, C, P) as well as the chemical systems investigated in each publication were included in the present work. The aim of the Inorganic Substances Bibliography is to provide researchers with a comprehensive compilation of all up to now published scientific publications on inorganic systems in only three handy volumes.
Download or read book RARE EARTH GARNETS written by Dr. Shesherao Shankarrao Jawale and published by Lulu.com. This book was released on with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
