Journal
JOURNAL OF ELECTRONIC MATERIALS
Volume 48, Issue 4, Pages 2364-2372Publisher
SPRINGER
DOI: 10.1007/s11664-019-06928-x
Keywords
Ti3SiC2; BaFe12O19 powders; auto-combustion process; complex spermittivity; microwave absorption property
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Funding
- PHD Start-up Fund of XPU [BS1615]
- Young Talent fund of University Association for Science and Technology in Shaanxi, China [20170521]
- Shaanxi Provincial Education Department [18JK0353]
- Scientific and Technological Innovation Guidance Project of Xi'an Science and Technology Bureau [201805030YD8CG14(14)]
- Shaanxi Special Talents Support Plan
- Shaanxi University Youth Outstanding Talents Support Plan
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In this work, Ti3SiC2 powders were composited with BaFe12O19 to improve electromagnetic and microwave absorption properties. The hybrid Ti3SiC2/BaFe12O19 powders were prepared in two different ways: mechanical mixing and auto-combustion. The electromagnetic and microwave absorption properties of the powders were investigated in the frequency range of 8.2-12.4 gigahertz (GHz). For the hybrid Ti3SiC2/BaFe12O19 powders, the complex permittivity was higher while the complex permeability was lower than individual BaFe12O19 powders. In addition, the hybrid powders prepared by auto-combustion had higher complex permittivity and permeability than the mechanical mixing powders. The most favorable absorption performance was obtained for the sample with a thickness of 2.4mm. The reflection loss value below -5 decibels (dB) was in the frequency range of 9.3-12.4GHz, with a minimum reflection loss value of -14.6dB at 10.9GHz.
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