Electromagnetic-wave-absorbing particle for ghz band and electromagnetic-wave-absorbing material including the same
AssigneesHyundai Motor Company, Kia Motors Corporation, Korea National University of Transportation Industry-Academic Cooperation Foundation
InventorsHyung Suk Kim, Eun Soo Lim, Ji Eun Yoo, Young Min Kang
Life of this patent
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Abstract
Electromagnetic-wave-absorbing particles for a GHz band are represented by the following [Empirical Formula 1] and include M-type hexaferrite as a major phase: Sr1-xRxFey-2zM2zOa, [Empirical Formula 1] where R is one or more selected from Ba, Ca, and La, M is one or more selected from Zn, Ti, and Zr, 0<x≤0.8, 8≤y≤14, 0<z≤1.5, and a is 19.
Claims13
Electromagnetic-wave-absorbing particles for a GHz band, which are represented by [Empirical Formula 1] below and which include M-type hexaferrite as a major phase:
- Sr1-xRxFey-2zM2zOa, [Empirical Formula 1]
- wherein R is one or more selected from Ba, Ca, and La, M is one or more selected from Zn, Ti, and Zr, 0<x≤0.8, 8≤y≤14, 0<z≤1.5, and a is 19.
An electromagnetic-wave-absorbing material for a GHz band, comprising:
- a polymer resin;
- and
- electromagnetic-wave-absorbing particles, which are mixed with the polymer resin and are represented by [Empirical Formula 1] below and which include M-type hexaferrite as a major phase:
- Sr1-xRxFey-2zM2zOa, [Empirical Formula 1]
- wherein R is one or more selected from Ba, Ca, and La, M is one or more selected from Zn, Ti, and Zr, 0<x≤0.8, 8≤y≤14, 0<z≤1.5, and a is 19.
Dependencies are inferred from the claim text.