Magnetic and Dielectric Properties of BST-YIG Composites

2008 ◽  
Vol 368-372 ◽  
pp. 585-587 ◽  
Author(s):  
Jun Chu Li ◽  
Xiang Li ◽  
Gang Yang ◽  
Zhen Xing Yue
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
High Frequency ◽  
Chemical Interaction ◽  
Solid State Reaction Method ◽  
Composite Ceramics ◽  
Magnetic And Dielectric Properties ◽  
Two Phases ◽  
Significant Chemical ◽  
Frequency Dependences

xBST-(1-x)YIG composite ceramics with x=0~1 were prepared by solid-state reaction method. The variations for phase compositions were determined by XRD, and the magnetic and dielectric properties of the composites were studied in the frequency range of 100Hz~1GHz. The results showed that the composites (x=0.1~0.9) are consisted of BST phase and YIG phase and no significant chemical interaction occurs between these two phases. The composite materials exhibit excellent frequency dependences of dielectric and magnetic properties. The resonance frequency and high frequency characteristics of YIG are improved by additions of BST, and when x=0.3, xBST-(1-x)YIG has the best dielectric and magnetic properties.

scholarly journals Preparation and microwave dielectric properties of CaTiO3 added Mg0.95Ni0.05Ti0.98Zr0.02O3 composite ceramics for high frequency applications

2019 ◽  
Vol 37 (4) ◽  
pp. 639-644 ◽  
Author(s):  
Abdul Manan ◽  
Asif Nawaz ◽  
Arbab Safeer Ahmad ◽  
Atta Ullah ◽  
Arshad Hussain Wazir ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
High Frequency ◽  
Microwave Dielectric Properties ◽  
Secondary Phase ◽  
Solid State Reaction Method ◽  
Composite Ceramics ◽  
Low Loss ◽  
Major Phase ◽  
Reaction Method ◽  
Microwave Dielectric

AbstractMg0.95Ni0.05Ti0.98Zr0.02O3 and CaTiO3 were prepared separately using solid state reaction method. The effect of CaTiO3 addition on the microwave dielectric properties of Mg0.95Ni0.05Ti0.98Zr0.02O3 was investigated to get low loss and temperature stable ceramics in (1 – x)Mg0.95Ni0.05Ti0.98Zr0.02O3-xCaTiO3 series. Mg0.95Ni0.05Ti0.98Zr0.02O3 formed as the major phase along with Mg0.95Ni0.05Ti2O5 phase that formed as minor secondary phase for the composition with x = 0. Microwave dielectric properties ∈r ~ 17.1, Qufo of 195,855 GHz and τf of –46.3 ppm/°C were obtained for the composition with x = 0. The positive τf value of CaTiO3, tuned the τf value of Mg0.95Ni0.05Ti0.98Zr0.02O3 through zero and ∈r ~ 28.4, Qufo ~ 108,775 GHz and τf ~ 3.1 ppm/°C were attained for x = 0.15 in this study. This composition is the best choice for high frequency applications.

Magnetic and dielectric properties of 3Y-TZP/strontium doped barium ferrite composite

2015 ◽  
Vol 08 (04) ◽  
pp. 1550040 ◽  
Author(s):  
Chao Zhang ◽  
Shan-Shan Wang ◽  
Rui-Song Guo ◽  
Guang-Lan Cai ◽  
Wei-Na Guo ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Magnetic Properties ◽  
Dielectric Properties ◽  
Solid State ◽  
Dielectric Loss ◽  
Barium Ferrite ◽  
Lattice Distortion ◽  
Solid State Reaction Method ◽  
Reaction Method ◽  
Magnetic And Dielectric Properties

Magnetic and dielectric properties of 3Y-TZP/20 wt.% Ba 1-x Sr x Fe 12 O 19 (x = 0, 0.25, 0.5, 0.75) composites prepared by solid state reaction method are investigated. The magnetic properties are improved in the composites with the strontium doped barium ferrite. When x = 0.25, the saturation magnetization of the ferrite reaches the maximum. This is due to the migration of Fe 3+ induced by the Sr 2+ doping. The dielectric properties are also improved in the composite with the strontium doped barium ferrite. When x = 0.5, the dielectric constant and dielectric loss possess the maximum. This is caused by the lattice distortion resulting from the Sr 2+ doping. The dielectric properties are analyzed by the universal relaxation law.

Effect of Temperature on the Magnetic Permeability of Hexagonal Ferrites

2018 ◽  
Vol 781 ◽  
pp. 36-40
Author(s):  
Olga Dotsenko ◽  
Kirill Frolov ◽  
Dmitry Wagner ◽  
Veronika Dotsenko ◽  
Dmitry Aksentev
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
High Frequency ◽  
Solid State Reaction Method ◽  
Nonlinear Dependence ◽  
Effect Of Temperature ◽  
Hexagonal Ferrites ◽  
Temperature Synthesis ◽  
Reaction Method ◽  
High Temperature Synthesis

In this study, Co0,7Zn1,3W powders were synthesized and investigated at the microwave region. The solid-state reaction method and self-propagating high-temperature synthesis were used to production of the two kinds of hexaferrite powders. The high-frequency magnetic properties under temperature effect have been studied. It is show, that there is a nonlinear dependence on temperature within the 0 – +40 °C temperature range.

Electrical and Magnetic Studies of (La0.5-xPrxBa0.5)(Mn0.5Ti0.5)O3 as Multiferroic Material

2012 ◽  
Vol 545 ◽  
pp. 269-274
Author(s):  
Nor Hayati Alias ◽  
Abdul Halim Shaari ◽  
Wan Mohamad Daud Wan Yusoff ◽  
Che Seman Mahmood
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
Solid State ◽  
Room Temperature ◽  
Sintering Temperature ◽  
Multiferroic Material ◽  
Magnetic Studies ◽  
State Technique ◽  
Magnetic And Dielectric Properties ◽  
Synthesized Materials

A new perovskite based titano-manganite (La0.5-xPrxBa0.5)(Mn0.5Ti0.5)O3 at x concentration 0, 0.01, 0.03, 0.05, 0.07 and 0.09 has been successfully prepared by ceramic solid-state technique at sintering temperature of 1300 °C. Dielectric electrical properties of the synthesized materials at frequency ranging from 5 Hz to 1 MHz and magnetic properties have been studied at room temperature. Analyses have been carried out to determine the structural, magnetic and dielectric properties of the synthesized material as a candidate of multiferroic material.

Synthesis and Characterisation of B-Site Doped Cu2Ta4O12

2002 ◽  
Vol 755 ◽  
Author(s):  
Bernd Renner ◽  
Stefan Ebbinghaus ◽  
Armin Reller ◽  
David Schrupp ◽  
Hans-Albrecht Krug von Nidda ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
Single Crystals ◽  
Rietveld Refinement ◽  
Copper Content ◽  
Tantalum Oxide ◽  
Powder Samples ◽  
Magnetic And Dielectric Properties ◽  
And Tungsten

ABSTRACTWe investigated synthesis, structure, composition as well as electric and magnetic properties of copper tantalum oxide single crystals and powder samples. It was possible to flux-grow single crystals of undoped Cu2Ta4O12. To modify the copper content in this structure, tetravalent and hexavalent ions like titanium and tungsten have been incorporated. Rietveld refinement data as well as magnetic and dielectric properties are presented.

Hybrid processing and properties of Ni0.8Zn0.2Fe2O4/Ba0.6Sr0.4TiO3 magnetodielectric composites

2010 ◽  
Vol 25 (9) ◽  
pp. 1803-1811 ◽  
Author(s):  
Haibo Yang ◽  
Hong Wang ◽  
Li Shui ◽  
Li He
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
Processing Route ◽  
High Frequency Range ◽  
Frequency Range ◽  
Low Loss ◽  
High Permittivity ◽  
Interference Filters

Ni0.8Zn0.2Fe2O4/Ba0.6Sr0.4TiO3 (NZO/BST) composites with high permittivity and low loss were synthesized via the hybrid processing route. The composites possess very dense and homogenous microstructure. The NZO/BST composites show good dielectric properties and magnetic properties with low loss in high frequency range. This indicates that this kind of magnetodielectric composites can be used in high-frequency communications for the capacitor-inductor integrating devices such as electromagnetic interference filters and antennas. The permittivities of the composites were also fitted using the combination of Maxwell–Wagner polarization and modified Curie–Weiss law.

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