Dielectric loss behavior and microwaves absorption properties of TiB2 ceramic | Zendy

Zhuoran Song | Zendy; Mengxiao Sun | Zendy; Lipeng Wu | Zendy; Fan Wu | Zendy; Aming Xie | Zendy

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Dielectric loss behavior and microwaves absorption properties of TiB₂ ceramic

Author(s) -

Zhuoran Song,

Mengxiao Sun,

Lipeng Wu,

Fan Wu,

Aming Xie

Publication year - 2020

Publication title -

materials research express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.383

H-Index - 35

ISSN - 2053-1591

DOI - 10.1088/2053-1591/ab85fb

Subject(s) - ceramic , materials science , dielectric , microwave , polarization (electrochemistry) , composite material , doping , dielectric loss , absorption (acoustics) , reflection loss , conductivity , optoelectronics , composite number , telecommunications , chemistry , computer science

Searching for microwaves absorption (MA) with outstanding resistance to harsh condition shows great potential in various special applications. As a typical high-temperature and conducting ceramic, TiB 2 can meet this requirement, but its high electrical conductivity will lead to high reflection of electromagnetic waves. In this paper, we find that TiB 2 ceramic can exhibit excellent MA performance after doping by C/N elements. The chemical structures, dielectric properties and MA performance of ZrB 2 ceramic are systematically measured and analyzed. The MA performance of TiB 2 ceramic reaches −21 dB at 8.00 GHz under a thickness of 2 mm. The results indicate that the MA performance of ZrB 2 can be ascribed to the multiple nonlinear dielectric resonance and polarization relaxation mechanism. This research significantly expands the application scope of TiB 2 ceramic to MA area.

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