The dielectric and thermal properties of Mn-doped (1 − x) ZrTi2O6–xZnNb2O6 filled PTFE composites

You, Yuanyuan; Yuan, Ying; Wu, Kaituo; Zhang, Qiuming; Yang, Jun; Yang, Xi

doi:10.1007/s10854-014-1975-2

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…PTFE-based substrate material with high ε has attracted increasing attention due to the specific application in recent years. In previous studies, PTFE/0.55ZrTi 2 O 6 -0.45ZnNb 2 O 6 composites exhibited the best dielectric properties: ε = 7.32, tanδ = 0.0015, and τ ε = -84 ppm/℃ (10 GHz) at the powder content of 46 vol% [6]. The (Na 0.6 Li 0.4 ) 0.5 Nd 0.5 TiO 3 and glass fiber were filled into PTFE matrix to fabricate composite substrate, and the composites showed the best dielectric properties: ε = 10.4, tanδ = 0.0026 (10 GHz), and excellent τ ε = -0.9 ppm/℃ when the weight fraction of fillers was 60 wt% [7].…”

Section: Introduction mentioning

confidence: 82%

Surface-modified Zn0.5Ti0.5NbO4 particles filled polytetrafluoroethylene composite with extremely low dielectric loss and stable temperature dependence

et al. 2020

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Polymer-ceramic composites are widely applied in microwave substrate materials due to the excellent dielectric properties and simple preparation process recently. Polytetrafluoroethylene-based (PTFE) composites filled with Zn0.5Ti0.5NbO4 (ZTN) ceramic particles were fabricated by hot-pressing. The particles were modified by C14H19F13O3Si to enhance the interface compatibility between PTFE and ZTN powders, which was characterized by X-ray photoelectron spectroscopy (XPS) and contact angle. The surface characteristic of particles transformed into hydrophobicity and tight microstructure as well as better dielectric properties were obtained after the surface modification. The microstructure, dielectric, thermal, mechanical properties, and water absorption of the composites concerning ZTN content were investigated. Modified ZTN/PTFE composites with 50 vol% ZTN particles exhibit excellent dielectric properties with a high dielectric constant of 8.3, an extremely low dielectric loss of 0.00055 at 7 GHz, and a stable temperature coefficient of the dielectric constant of −12.2 ppm/°C. All the properties show modified ZTN particles filled PTFE composite is the potential material for microwave substrate application.

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Section: Introduction mentioning

confidence: 82%

Surface-modified Zn0.5Ti0.5NbO4 particles filled polytetrafluoroethylene composite with extremely low dielectric loss and stable temperature dependence

et al. 2020

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“…[2] Finding a single material, which incorporates all these qualities, is challenging. [3,4] Although ceramic substrates have a low tan δ value along with a high ε r , the high brittleness limits their application. On the other hand, various low-loss polymers are available, but they are not usable due to their high CTE and limited heat conductivity.…”

Section: Introductionmentioning

confidence: 99%

Low‐Loss Sr₂Ti₉O₂₀‐Filled Butyl Rubber Composites for Miniaturized Flexible Microwave Substrate Applications

Muhammed Hunize,

Arun Shaji,

Joseph

et al. 2023

Physica Status Solidi (a)

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Low‐loss Sr2Ti9O20 (STO)/Butyl Rubber composites have been prepared by mixing and hot pressing. X‐ray diffraction (XRD) and energy dispersive spectroscopy (EDS) are employed to investigate the phases contained in the STO filler, and the microstructural characteristics of the composites are discovered using scanning electron microscopy (SEM). The STO/BR composites demonstrate a high relative permittivity of 10.98 and a low loss of 0.003 at 10 GHz, corresponding to an optimum filler volume fraction of 45%. In addition, a low CTE of 50.72 ppm oC‐1 and a high thermal conductivity of 0.9603 Wm‐1K‐1 have been found for the optimum composition, with an acceptable moisture absorption of 0.071%. The obtained composites can be employed to design miniaturized, flexible RF substrate applications.This article is protected by copyright. All rights reserved.

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“…At present, the most widely used ceramic fillers are CaCu 3 Ti 4 O 12 [14], CaTiO 3 [15], MgTiO 3 [6], BaTiO 3 [16], Mg 0.95 Ca 0.05 TiO 3 [17], Ba 0.55 Sr 0.45 TiO 3 [18] and so on. Some researchers used two ceramic fillers together, such as TiO 2 /SiO 2 [19], Sm 2 Si 2 O 7 /Sr 2 Ce 2 Ti 5 O 15 [20], ZnAl 2 O 4 / TiO 2 [21], (1 -x)ZrTi 2 O 6 -xZnNb 2 O 6 [22]. A certain extent by the addition of inorganic fillers such as ceramic particles into the polymer matrix can increase the dielectric constant significantly.…”

Section: Introductionmentioning

confidence: 99%

Dielectric properties of modified BNT/PTFE composites for microwave RF antenna applications

Jin

Huang

et al. 2016

J Mater Sci: Mater Electron

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BNT/PTFE composites with high dielectric constant and low loss properties were prepared via powder processing technique. The structure, morphology, dielectric and thermal properties of the composites were characterized by X-ray diffraction, scanning electron microscope, coefficient of thermal expansion, and Network Analyzer. BNT/PTFE composites with 70 wt% BNT are of high e r and high Q: e r = 10.56, Q 9 f = 2872 GHz. Additionally, theoretical models like Logarithmic rule, Maxwell-Garnet, Effective medium theory and Smith's model were also used to predict the dielectric constant of these composites. The values obtained by the Logarithmic model are in well agreement with the experimental values.

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The dielectric and thermal properties of Mn-doped (1 − x) ZrTi2O6–xZnNb2O6 filled PTFE composites

Cited by 5 publications

References 19 publications

Surface-modified Zn0.5Ti0.5NbO4 particles filled polytetrafluoroethylene composite with extremely low dielectric loss and stable temperature dependence

Surface-modified Zn0.5Ti0.5NbO4 particles filled polytetrafluoroethylene composite with extremely low dielectric loss and stable temperature dependence

Low‐Loss Sr₂Ti₉O₂₀‐Filled Butyl Rubber Composites for Miniaturized Flexible Microwave Substrate Applications

Dielectric properties of modified BNT/PTFE composites for microwave RF antenna applications

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The dielectric and thermal properties of Mn-doped (1 − x) ZrTi2O6–xZnNb2O6 filled PTFE composites

Cited by 5 publications

References 19 publications

Surface-modified Zn0.5Ti0.5NbO4 particles filled polytetrafluoroethylene composite with extremely low dielectric loss and stable temperature dependence

Surface-modified Zn0.5Ti0.5NbO4 particles filled polytetrafluoroethylene composite with extremely low dielectric loss and stable temperature dependence

Low‐Loss Sr2Ti9O20‐Filled Butyl Rubber Composites for Miniaturized Flexible Microwave Substrate Applications

Dielectric properties of modified BNT/PTFE composites for microwave RF antenna applications

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Product

Resources

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Low‐Loss Sr₂Ti₉O₂₀‐Filled Butyl Rubber Composites for Miniaturized Flexible Microwave Substrate Applications