Effect of Sr substitution on microwave dielectric properties of Nd(Mg0.5Sn0.5)O3 ceramics

Chen, Yih-Chien; Wu, Chung-Yen

doi:10.1016/j.ceramint.2012.07.094

Cited by 7 publications

(2 citation statements)

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“…Among them, minor amount of low-melt point oxide of Bi 2 O 3 and B 2 O 3 was usually used to enhance the sintering densification of Sm(Mg 0.5 Ti 0.5 )O 3 [478,479], CuO was added into La 2.98/3 Sr 0.01 (Mg 0.5 Sn 0.5 )O 3 to enhance the densification [480], and V 2 O 5 was valid for reducing the sintering temperature of Nd(Zn 1/2 Ti 1/2 )O 3 [481]. Solid solution of Nd (1-x) Sm x (Mg 0.5 Sn 0.5 )O 3 [482], Nd(Mg 0.5-x Co x Sn 0.5 )O 3 [483], Nd (1-2x/3) Ca x (Mg 0.5 Sn 0.5 )O 3 [484], Nd (1-2x/3) Sr x (Mg 0.5 Sn 0.5 )O 3 [485], Nd (1-2x/3) Ba x (Mg 0.5 Sn 0.5 )O 3 [486], www.springer.com/journal/40145 Fig. 21 Combinations of the symmetry coordinates (normalized) for IR-active F 1u (2) modes.…”

Section: A 2 B′b″o 6 Formulamentioning

confidence: 99%

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

et al. 2021

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The explosive process of 5G communication evokes the urgent demand of miniaturized and integrated dielectric ceramics filter. It is a pressing need to advance the development of dielectric ceramics utilization of emerging technology to design new materials and understand the polarization mechanism. This review provides the summary of the study of microwave dielectric ceramics (MWDCs) sintered higher than 1000 from 2010 up to now, °C with the purpose of taking a broad and historical view of these ceramics and illustrating research directions. To date, researchers endeavor to explain the structure-property relationship of ceramics with multitude of approaches and design a new formula or strategy to obtain excellent microwave dielectric properties. There are variety of factors that impact the permittivity, dielectric loss, and temperature stability of dielectric materials, covering intrinsic and extrinsic factors. Many of these factors are often intertwined, which can complicate new dielectric material discovery and the mechanism investigation. Because of the various ceramics systems, pseudo phase diagram was used to classify the dielectric materials based on the composition. In this review, the ceramics were firstly divided into ternary systems, and then brief description of the experimental probes and complementary theoretical methods that have been used to discern the intrinsic polarization mechanisms and the origin of intrinsic loss was mentioned. Finally, some perspectives on the future outlook for high-temperature MWDCs were offered based on the synthesis method, characterization techniques, and significant theory developments.

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Section: A 2 B′b″o 6 Formulamentioning

confidence: 99%

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

et al. 2021

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“…Because the ionic radius of Ti 4+ is bigger than that of Si(2) 4+ , the volumes of neighboring [Si(3)O 4 ] and [Al(2)O 4 ] tetrahedrons are squeezed to be smaller ones. As x= 0.10, the connected [O 6 ] rings obtain the maximum centro-symmetry of close to equilateral hexagonal structure.Besides, Mg 2+ and Ca 2+ ions are both alkaline earth elements, and Ca 2+ ions with a relative large However, the radius differences between both kinds of ions are more than 15%, which could only form a limited solid solution[26]. Some Ca 2+ ions may occupy the Mg2+ sites to form [CaO 6 ] octahedrons.…”

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Crystal structure and microwave dielectric properties of CaTiO3 modified Mg2Al4Si5O18 cordierite ceramics

Wei

Liu

Lin

et al. 2016

Journal of Alloys and Compounds

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In this work, CaTiO 3 modified Mg 2 Al 4 Si 5 O 18 (MAS) of (1-x)MAS-xCaTiO 3 (0 ≤x≤0.35) cordierite ceramics were fabricated by traditional solid phase sintering method. The densification sintering temperatures of (1-x)MAS-xCaTiO 3 ceramics are effectively lowered from 1460C to 1250C with increasing addition of CaTiO 3. X-ray diffraction spectra show that (1-x)MAS-xCaTiO 3 ceramics present cordierite phase as 0

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Improved microwave dielectric properties of La(Mg0.5Sn0.5)O3 ceramic with Ba2+ substitution

Wang

Chen

2013

J Mater Sci: Mater Electron

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Effect of Sr substitution on microwave dielectric properties of Nd(Mg0.5Sn0.5)O3 ceramics

Cited by 7 publications

References 15 publications

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

Crystal structure and microwave dielectric properties of CaTiO3 modified Mg2Al4Si5O18 cordierite ceramics

Improved microwave dielectric properties of La(Mg0.5Sn0.5)O3 ceramic with Ba2+ substitution

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