Investigation on electromagnetic and microwave absorbing properties of La0.7 Sr0.3 MnO3-δ /carbon nanotube composites

C. Y. Tsay; R. B. Yang; D. S. Hung; Y. H. Hung; Y. D. Yao; C. K. Lin

doi:10.1063/1.3337681

Investigation on electromagnetic and microwave absorbing properties of La0.7 Sr0.3 MnO3-δ /carbon nanotube composites

C. Y. Tsay, R. B. Yang, D. S. Hung, Y. H. Hung, Y. D. Yao, C. K. Lin

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

In this study, the influence of the addition of carbon nanotube (CNT) (0, 0.5, 1.0, and 2.0 wt %) on complex permittivity, complex permeability, and reflection loss for La0.7 Sr0.3 MnO3-δ (LSMO)/polymer composites was investigated. Microwave absorbing composites were prepared by molding and curing a mixture of LSMO powders, CNTs, and epoxy resin. The complex permittivity and complex permeability for LSMO/CNT composites were examined by a cavity perturbation technique. The experimental results showed that the complex permittivity increased with increasing CNT addition and the imaginary part of the permeability decreased with rising frequency. In the present study, a microwave absorbing composite filled with 80 wt % LSOM powders and 2 wt % CNTs exhibited the optimum performance, that is, the microwave absorbing peak was -22.85 dB at 9.5 GHz and the -10 dB absorbing bandwidth reached 3.3 GHz for the sample with a matching thickness of 3 mm.

Original language	English
Article number	09A502
Journal	Journal of Applied Physics
Volume	107
Issue number	9
DOIs	https://doi.org/10.1063/1.3337681
Publication status	Published - May 1 2010
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.3337681

Cite this

@article{15006e85bb4f4467ac25c0c114939bfd,

title = "Investigation on electromagnetic and microwave absorbing properties of La0.7 Sr0.3 MnO3-δ /carbon nanotube composites",

abstract = "In this study, the influence of the addition of carbon nanotube (CNT) (0, 0.5, 1.0, and 2.0 wt %) on complex permittivity, complex permeability, and reflection loss for La0.7 Sr0.3 MnO3-δ (LSMO)/polymer composites was investigated. Microwave absorbing composites were prepared by molding and curing a mixture of LSMO powders, CNTs, and epoxy resin. The complex permittivity and complex permeability for LSMO/CNT composites were examined by a cavity perturbation technique. The experimental results showed that the complex permittivity increased with increasing CNT addition and the imaginary part of the permeability decreased with rising frequency. In the present study, a microwave absorbing composite filled with 80 wt % LSOM powders and 2 wt % CNTs exhibited the optimum performance, that is, the microwave absorbing peak was -22.85 dB at 9.5 GHz and the -10 dB absorbing bandwidth reached 3.3 GHz for the sample with a matching thickness of 3 mm.",

author = "Tsay, {C. Y.} and Yang, {R. B.} and Hung, {D. S.} and Hung, {Y. H.} and Yao, {Y. D.} and Lin, {C. K.}",

note = "Funding Information: The authors gratefully acknowledge that this work received financial support from the National Science Council of the Republic of China under Contract No. NSC 96-2221-E-035-055-MY3.",

year = "2010",

month = may,

day = "1",

doi = "10.1063/1.3337681",

language = "English",

volume = "107",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "9",

}

TY - JOUR

T1 - Investigation on electromagnetic and microwave absorbing properties of La0.7 Sr0.3 MnO3-δ /carbon nanotube composites

AU - Tsay, C. Y.

AU - Yang, R. B.

AU - Hung, D. S.

AU - Hung, Y. H.

AU - Yao, Y. D.

AU - Lin, C. K.

N1 - Funding Information: The authors gratefully acknowledge that this work received financial support from the National Science Council of the Republic of China under Contract No. NSC 96-2221-E-035-055-MY3.

PY - 2010/5/1

Y1 - 2010/5/1

N2 - In this study, the influence of the addition of carbon nanotube (CNT) (0, 0.5, 1.0, and 2.0 wt %) on complex permittivity, complex permeability, and reflection loss for La0.7 Sr0.3 MnO3-δ (LSMO)/polymer composites was investigated. Microwave absorbing composites were prepared by molding and curing a mixture of LSMO powders, CNTs, and epoxy resin. The complex permittivity and complex permeability for LSMO/CNT composites were examined by a cavity perturbation technique. The experimental results showed that the complex permittivity increased with increasing CNT addition and the imaginary part of the permeability decreased with rising frequency. In the present study, a microwave absorbing composite filled with 80 wt % LSOM powders and 2 wt % CNTs exhibited the optimum performance, that is, the microwave absorbing peak was -22.85 dB at 9.5 GHz and the -10 dB absorbing bandwidth reached 3.3 GHz for the sample with a matching thickness of 3 mm.

AB - In this study, the influence of the addition of carbon nanotube (CNT) (0, 0.5, 1.0, and 2.0 wt %) on complex permittivity, complex permeability, and reflection loss for La0.7 Sr0.3 MnO3-δ (LSMO)/polymer composites was investigated. Microwave absorbing composites were prepared by molding and curing a mixture of LSMO powders, CNTs, and epoxy resin. The complex permittivity and complex permeability for LSMO/CNT composites were examined by a cavity perturbation technique. The experimental results showed that the complex permittivity increased with increasing CNT addition and the imaginary part of the permeability decreased with rising frequency. In the present study, a microwave absorbing composite filled with 80 wt % LSOM powders and 2 wt % CNTs exhibited the optimum performance, that is, the microwave absorbing peak was -22.85 dB at 9.5 GHz and the -10 dB absorbing bandwidth reached 3.3 GHz for the sample with a matching thickness of 3 mm.

UR - http://www.scopus.com/inward/record.url?scp=77951673783&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951673783&partnerID=8YFLogxK

U2 - 10.1063/1.3337681

DO - 10.1063/1.3337681

M3 - Article

AN - SCOPUS:77951673783

VL - 107

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 9

M1 - 09A502

ER -

Investigation on electromagnetic and microwave absorbing properties of La0.7 Sr0.3 MnO3-δ /carbon nanotube composites

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this