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Synthesization,Morphological and Magnetic Properties of M-Type Hexagonal Ferrites Prepared by Solid-State Reaction Method

摘要第4-7页
ABSTRACT第7-10页
Chapter 1.Introduction第19-33页
    1.1. Introduction to permanent magnetic materials第19页
    1.2. Ferrites History第19-22页
    1.3. Magnetic Materials Classification第22-25页
    1.4. Magnetic Basic Theory第25-28页
        1.4.1. Hysterosis loops, Coercivity, Remanence, Saturation Magnetisation Of The BasicTheory第25-26页
        1.4.2. Superexchange Effect第26-27页
        1.4.3. Spontaneous Magnetization And Magnetic Domain Structure第27-28页
    1.5. Permanent Ferrites Production and Application第28-31页
    1.6. Research Ideas and Significance第31-33页
        1.6.1. Research Ideas第31页
        1.6.2. Motivation of Work第31-33页
Chapter 2.Structure And Ion Replacement Of M -type Permanent Ferrites第33-43页
    2.1. Ferrites Magnetic Materials Classification第33-34页
    2.2. M-type Ferrites Crystal Structure第34-37页
    2.3. M-type ferrites Magnetocrystalline Anisotropy第37-38页
    2.4. M-type ferrite Ion Substitution第38-43页
        2.4.1. Replace Of Me~(2+) Ions第39-40页
        2.4.2. Replace Of Fe~(3+) Ions第40-41页
        2.4.3. Ion Combination Replacement第41-42页
        2.4.4. Replace Of O~(2-) Ions第42-43页
Chapter 3.Preparation and Characterization of M-type Strontium Permanent Magnets第43-57页
    3.1. Experimental Reagent第43-44页
    3.2. M-Type Strontium Permanent Ferrites Preparation第44-48页
        3.2.1. Traditional ceramic method第44-45页
        3.2.2. Hydrothermal Synthesis method第45-46页
        3.2.3. School Co-Precipation Method第46-47页
        3.2.4. Sol-Gel Salt Propating Combustion Method第47-48页
        3.2.5. Molten Salt Method第48页
    3.3. Preparation method and process第48-51页
    3.4. Sample Characterization and Test Analysis第51-57页
        3.4.1. X-ray Powder diffraction第51-53页
        3.4.2. Scanning Electron Microscope第53-54页
        3.4.3. Vibration Sample Magnetometer第54-55页
        3.4.4. Magnetic Properties Of Permanent Magnetic Material Testing System第55-57页
Chapter 4.Fabrication And analysis of the Magnetic Properties of Sr_(0.3)La_(0.48)Ca_(0.25)n[Fe_((2-0.4/n)O_3]Co_(0.4) (n= 5.5,5.6,5.7,5.8, 5.9,6.0)第57-66页
    4.1. Introduction第57-58页
    4.2. Specimen preparation第58页
    4.3. Results & Discussions第58-66页
        4.3.1. Structural characterization第58-62页
        4.3.2. Magnetic Examine第62-66页
Chapter 5:Synthesis and study of Ba_(1-x)Y_xFe_(12)O_(19) hexaferrites第66-73页
    5.1. Introduction第66-67页
    5.2. Experimental procedure第67-68页
    5.3. Result and Discussions第68-73页
        5.3.1. Structural characterization第68-69页
        5.3.2. VSM Examination第69-73页
Chapter 6. Synthesis and investigation of Sr_7Y_xLa_(3-x)Fe_(12-y)Co_yO_(19) hexaferrites第73-82页
    6.1. Introduction第73-74页
    6.2. Material Preparation第74-75页
    6.3. Results and Discussions第75-82页
        6.3.1. Structural characterization第75-77页
        6.3.2. Magnetic Examination第77-82页
Chapter 7.Influence of temperature on Sr_(0.35)La_(0.40)Ca_(25)Fe_(11.6)Co_(0.4)O_(19) hexagonal ferrites第82-91页
    7.1. Introdution第82-83页
    7.2. Sample Preparation第83-84页
    7.3. Results and Discussions第84-91页
        7.3.1. Crystal Structural Characterization & Morphology第84-87页
        7.3.2. VSM Examination第87-91页
Chapter 8. Ce doped M type strontium hexaferrites synthesized by Ceramic route第91-103页
    8.1. Introdution第91-93页
    8.2. Materials & Test Method第93-94页
        8.2.1. Materials第93页
        8.2.2. Methods第93-94页
    8.3. Results and Discussions第94-103页
        8.3.1. Phase Identification Analysis第94-96页
        8.3.2. Magnetic Properties第96-103页
CHAPTER 9. Conclusions第103-106页
References第106-128页
Acknowledgements第128-129页
Publications第129页

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