Effect of Co substitution on the structural, dielectric and reflection properties of MgTiO3 solid solutions

Sharma, Komal; Bahel, Shalini

doi:10.1016/j.materresbull.2022.112037

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…τf is an essential consideration in the practicality of microwave dielectric ceramics, which represents the temperature stability of microwave components in the operating environment. According to Equation ( 11), the variation in τf is closely related to the dielectric constant temperature coefficient (τε), and Equation ( 12) is the expression for τε obtained There have been numerous studies that have delved into the factors influencing microwave dielectric properties [24][25][26][27]. In general, Qf is mainly affected by both intrinsic and non-intrinsic factors.…”

Section: Microwave Dielectric Propertiesmentioning

confidence: 99%

The Structure and Microwave Dielectric Properties of MgTi1−x(Mn1/3Nb2/3)xO3 Ceramics

Huang

Wang

et al. 2023

Crystals

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MgTi1−x(Mn1/3Nb2/3)xO3 (x = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi1−x(Mn1/3Nb2/3)xO3 (x = 0–0.30) were systematically investigated. The MgTi1−x(Mn1/3Nb2/3)xO3 ceramics presented an ilmenite type with an R-3 space group, and the secondary-phase MgTi2O5 only existed at x = 0 and 0.30. The introduction of (Mn1/3Nb2/3)4+ effectively suppressed the formation of the MgTi2O5 phase. The variation trend of the dielectric constant (εr) was the same as relative density. The quality factor (Qf) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn1/3Nb2/3)-O bonds. And a high Qf value (353,000 GHz) was obtained for MgTi1−x(Mn1/3Nb2/3)xO3 (x = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn2+ ions with a larger ionic radius exacerbates the distortion of TiO6 octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (τf) value.

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Section: Microwave Dielectric Propertiesmentioning

confidence: 99%

The Structure and Microwave Dielectric Properties of MgTi1−x(Mn1/3Nb2/3)xO3 Ceramics

Huang

Wang

et al. 2023

Crystals

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“…A microwave is an electromagnetic wave that is widely employed in radars, biological signal detection, and telecommunication systems due to its high transmittance, wide operating frequency, high directionality, large information capacity, and other advantages [ 1 , 2 ]. The rapid growth of the wireless communication technology market in recent years has fostered a significant demand for microwave ceramic materials that can be applied in oscillators, resonators, antennas and microwave substrates.…”

Section: Introductionmentioning

confidence: 99%

Study on Low-Temperature Conductive Silver Pastes Containing Bi-Based Glass for MgTiO3 Electronic Power Devices

Fu,

Yu,

Liu

et al. 2023

Micromachines

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Low-temperature lead-free silver pastes deserve thorough investigation for sustainable development and application of MgTiO3 ceramics in electronic devices. In this study, a series of Bi2O3-B2O3-ZnO-SiO2-Al2O3-CaO glasses with suitable softening temperatures were prepared via melt quenching using a type of micrometer silver powder formed by silver nanoparticle aggregates. The composite pastes containing silver powder, Bi2O3 glass powder and an organic vehicle were then screen-printed. The effects of glass powder concentration and sintering temperature on the microstructure of the surface interface were also investigated. The results showed that the silver paste for microwave dielectric ceramic filters (MgTiO3) possessed good electrical conductivity (2.28 mΩ/□) and high adhesion (43.46 N/mm2) after medium temperature (670 °C) sintering. Thus, this glass powder has great application potential in non-toxic lead-free silver pastes for metallization of MgTiO3 substrates.

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MgTiO3-based ceramics for enhanced EMI shielding solutions in K and Ka frequency bands

Singh,

Bahel

2024

J Electroceram

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Effect of Co substitution on the structural, dielectric and reflection properties of MgTiO3 solid solutions

Cited by 7 publications

References 35 publications

The Structure and Microwave Dielectric Properties of MgTi1−x(Mn1/3Nb2/3)xO3 Ceramics

The Structure and Microwave Dielectric Properties of MgTi1−x(Mn1/3Nb2/3)xO3 Ceramics

Study on Low-Temperature Conductive Silver Pastes Containing Bi-Based Glass for MgTiO3 Electronic Power Devices

MgTiO3-based ceramics for enhanced EMI shielding solutions in K and Ka frequency bands

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