High-frequency magnetic and dielectric properties of a three-phase composite of nickel, Co2Z ferrite, and polymer

2006 ◽  
Vol 99 (12) ◽  
pp. 123909 ◽  
Author(s):  
Bao-Wen Li ◽  
Yang Shen ◽  
Zhen-xing Yue ◽  
Ce-Wen Nan
Keyword(s):  
Dielectric Properties ◽  
High Frequency ◽  
Three Phase ◽  
Magnetic And Dielectric Properties

Static and high frequency magnetic and dielectric properties of ferrite-ferroelectric composite materials

2006 ◽  
Vol 100 (8) ◽  
pp. 084905 ◽  
Author(s):  
Sangita S. Kalarickal ◽  
David Ménard ◽  
Jaydip Das ◽  
Carl E. Patton ◽  
Xubai Zhang ◽  
...  
Keyword(s):  
Composite Materials ◽  
Dielectric Properties ◽  
High Frequency ◽  
Magnetic And Dielectric Properties

Ultralow dielectric constant nickel–zinc ferrites using microwave sintering

2003 ◽  
Vol 18 (10) ◽  
pp. 2292-2295 ◽  
Author(s):  
Ramesh Peelamedu ◽  
Craig Grimes ◽  
Dinesh Agrawal ◽  
Rustum Roy ◽  
Purushotham Yadoji
Keyword(s):  
Dielectric Constant ◽  
Grain Size ◽  
Dielectric Properties ◽  
High Frequency ◽  
Microwave Field ◽  
Domain Walls ◽  
Microwave Sintering ◽  
Starting Material ◽  
Nickel Zinc ◽  
Magnetic And Dielectric Properties

Ultralow dielectric constant values were measured on Ni–Zn ferrites prepared using Fe2O3 as a starting material and sintered in a microwave field. Significant differences in microstructure, magnetic, and dielectric properties were observed between microwave-sintered Ni–Zn ferrites prepared using Fe3O4 (T34) and those starting with Fe2O3 (T23) ingredients. Higher magnetization values observed in T23 ferrite are attributed to large grain size, possibly containing abundant domain walls and the presence of fewer Fe2+ ions. The ultralow dielectric constant values observed on T23 ferrites show that this procedure is highly suitable to prepare Ni–Zn ferrites for high-frequency switching applications.

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.

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