| STUDY ON PREPARATION, COMPLEX PERMITTIVITY,PERMEABILITY AND MICROWAVE PROPERTIES OF BaZnZCo2-ZFe16O27／SiO2 MICROCRYSTALLINE GLASS CERAMICS |
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| 作者姓名： | H.J. Zhang and X.L. Jia
High Temperature Ceramics Institute Zhengzhou University Zhengzhou China
X. Yao and L. Y. Zhang
Functional Materials Research Laboratory Tongji University Shanghai China |
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| 作者单位： | H.J. Zhang and X.L. Jia
High Temperature Ceramics Institute，Zhengzhou University，Zhengzhou 450052，China
X. Yao and L. Y. Zhang
Functional Materials Research Laboratory，Tongji University，Shanghai 200092，China |
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| 摘 要： | BaZnzCo2-zFe16O27/SiO2 microcrystalline glass ceramics with Z=0.0, 0.5, 0.8 and 1.1 were prepared at temperature 1200℃ for 5h by citrate sol-gel process. The complex dielectric constant and complex permeability of BaZnzCo2-zFe16 O27/SiO2-paraffin wax composites had been measured. Both the complex dielectric constant and dielectric loss exhibit almost no variation with frequency in 0.1-6.0GHz. The real part of permeability decreases with increasing frequency for all samples, and the imaginary part of permeability exhibits a clear resonance peak at 1.44GHz for Co2 W/SiO2, 1.32GHz for Zn0.5Co1.5 W/SiO2, 1.20GHz for Zn0.8Co1.2W/SiO2, and 1.08GHz for Zn1.1 Co0.9 W/SiO2. It is also showed that the content of zinc has a close effect on the magnetic properties of BaZnzCo2-zFe16O27/SiO2 microcrystalline glass ceramics, the greater the zinc content, the higher the values of imaginary part of permeability and magnetic loss.
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STUDY ON PREPARATION, COMPLEX PERMITTIVITY,PERMEABILITY AND MICROWAVE PROPERTIES OF BaZnzCo2- zFe16O27/SiO2 MICROCRYSTALLINE GLASS CERAMICS |
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| H.J. Zhang and X.L. Jia
High Temperature Ceramics Institute,Zhengzhou University,Zhengzhou ,China
X. Yao and L. Y. Zhang
Functional Materials Research Laboratory,Tongji University,Shanghai ,China.STUDY ON PREPARATION, COMPLEX PERMITTIVITY,PERMEABILITY AND MICROWAVE PROPERTIES OF BaZnzCo2- zFe16O27/SiO2 MICROCRYSTALLINE GLASS CERAMICS[J].Acta Metallurgica Sinica(English Letters),2003,16(6):421-427. |
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| Authors: | HJZhang XLJia XYao LYZhang |
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| Affiliation: | 1. High Temperature Ceramics Institute, Zhengzhou University, Zhengzhou 450052
2. Functional Materials Research Laboratory, Tongji University, Shanghai 200092, China |
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| Abstract: | BaZnz Co2- z Fe16 O27 /SiO2 microcrystalline glass ceramics with Z=0.0, 0.5, 0.8 and 1.1 were prepared at temperature 1200℃ for 5h by citrate sol-gel process. The complex dielectric constant and complex permeability of BaZnzCo2-zFe16O27/SiO2-paraffin wax composites had been measured. Both the complex dielectric constant and dielectric loss exhibit almost no variation with frequency in 0.1-6.0GHz. The real part of permeability decreases with increasing frequency for all samples, and the imaginary part of permeability exhibits a clear resonance peak at 1.44GHz for Co2 W/SiO2,1.32GHz for Zn0.5 Co1.5 W/SiO2, 1.20GHz for Zn0.8Co1.2 W/SiO2, and 1.08GHz for Zn1.1 Co0.9 W/SiO2. It is also showed that the content of zinc has a close effect on the magnetic properties of BaZnz Co2-zFe16 O27/SiO2 microcrystalline glass ceramics,the greater the zinc content, the higher the values of imaginary part of permeability and magnetic loss. |
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| Keywords: | BaZnz Co2-zFe16O27/SiO2 microcrystalline glass ceramics sol-gel microwave property |
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