Crystal structure and microwave dielectric properties of (Ba1−αSrα)6−3xSm8+2xTi18O54 solid solutions

Suzuki, Masafumi; Ohsato, Hitoshi; Kakimoto, Ken‐ichi; Nakamura, Takashi; Otagiri, Tadashi

doi:10.1016/j.jeurceramsoc.2005.09.086

Cited by 12 publications

(3 citation statements)

References 7 publications

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“…= 0 [82,83] Sr ions are introduced in to this system, in which the ionic size is located between Ba and Sm ions.…”

Section: • Case 1: Design By the Distribution Of Cations For The Imprmentioning

confidence: 99%

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Microwave Dielectrics with Perovskite-Type Structure

Ohsato¹

2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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Most electroceramics are ferroelectrics, but microwave dielectrics are mostly paraelectrics with a center of symmetry i. Microwave dielectrics should possess a perfect crystal structure with neither defects nor internal strain in order to be microwave friendly. They have been used in resonators and filters in mobile telecommunications devices. Perovskite and related compounds are also mostly ferroelectrics, but paraelectrics with a perovskite structure also exist, and are used in microwave dielectrics. Owing to the flexibility of the perovskite structure, many kinds of microwave dielectrics with a perovskite structure have been designed for microwave dielectrics. In this chapter, simple and complex perovskite, and perovskite related materials such as pseudo-tungsten-bronze solid solutions and homologous compounds are introduced for microwave dielectrics. The microwave dielectric properties are revealed through the crystalline structure of the material. Therefore, the relationship between the crystalline structure and properties of the material is presented, and is expected to be of use in the design of novel dielectrics. As many superior materials for microwave dielectrics have been developed and are expected to be used in new applications such as wireless sensors and wireless power transfer by resonant coupling, wave absorption by interference and transparent ceramics with no birefringence, these new applications are also discussed.

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“…= 0 [82,83] Sr ions are introduced in to this system, in which the ionic size is located between Ba and Sm ions.…”

Section: • Case 1: Design By the Distribution Of Cations For The Imprmentioning

confidence: 99%

“…23), which have a medium size between that of A 1 -and A 2 -sites. Hence it is expected that R, Sr and Ba ions are ordering in A 1 -, A 13 -and A 2 -sites respectively [83].…”

Section: • Case 1: Design By the Distribution Of Cations For The Imprmentioning

confidence: 99%

Microwave Dielectrics with Perovskite-Type Structure

Ohsato¹

2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

Self Cite

View full text Add to dashboard Cite

show abstract

“…Tungstenbronze type like Ba 6−3x R 8+2x Ti 18 O 54 (R = La, Sm and Nd) is a possible candidate for the applications, [1][2][3][4] since this dense ceramics possesses high dielectric constant ε r as well as high quality factor Q·f.…”

Section: Introductionmentioning

confidence: 99%