A glass coating for SiC fiber reinforced aluminum phosphate matrix (SiCf/AlPO4) composites for high-temperature absorbing wave applications

Wan, Feng; Luo, Fa; Zhou, Yingying; Zhou, Wancheng; Zhu, Dongmei

doi:10.1016/j.surfcoat.2015.01.044

Cited by 21 publications

(4 citation statements)

References 30 publications

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“…The radome materials include quartz ceramics, , nitride ceramics, , and aluminum phosphate matrix composite materials. , With the presence of free hydroxyl groups and voids on the surface of inorganic radome materials, the surface of the radome could exhibit hydrophilicity. Numerous studies have shown that rainwater has a significant impact on the transmission performance of the antenna signal. − When rainwater causes water to accumulate on the surface of antennas or radomes, even a very thin film of water can greatly increase the transmission loss and noise of rainwater.…”

mentioning

confidence: 99%

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

Cao,

Zhu,

Huo

et al. 2023

ACS Appl. Nano Mater.

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5G antennas typically operate in outdoor environments. These outdoor factors can reduce antenna accuracy, shorten life, and cause poor operational reliability. Therefore, applying materials with water-repellent properties to the radome can play an important role in protecting them from external environments. This paper reports a superhydrophobic nanocoating that can be sprayed on the radome. The dielectric constant of the coating is 2.709, and the dielectric strength is 38.58 kV/mm. The radome with a superhydrophobic coating was tested by rain, and its signal transmission is only −0.24 dB. Meanwhile, the static contact angle of the coating can reach 157°.

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confidence: 99%

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

Cao,

Zhu,

Huo

et al. 2023

ACS Appl. Nano Mater.

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“…Continuous fiber-reinforced ceramic matrix composites (SiC f /SiC [ 7 ], SiC f /C [ 8 ], C f /C [ 9 ], C f /SiC [ 10 ], and SiC f /AlPO 4 [ 11 ]), showing excellent fracture toughness, good thermal stability, and environmental durability, have been evaluated and modified for use as structural electromagnetic wave-absorbing materials. Especially, continuous SiC fiber-reinforced AlPO 4 (SiC f /AlPO 4 ) composites have demonstrated good potential [ 12 , 13 , 14 ]. Their low dielectric constants provide the opportunity to tailor the dielectric properties and wave absorbing abilities by the addition of conductive fillers (carbon black, carbon nanotube, and graphene).…”

Section: Introductionmentioning

confidence: 99%

The Influence of SiO2 + SiC + Al (H2PO4)3 Coating on Mechanical and Dielectric Properties for SiCf/MWCNTS/AlPO4 Composites

et al. 2022

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SiC fiber-reinforced AlPO4 matrix (SiCf/MWCNTs/AlPO4) composites were fabricated using a hot laminating process with multi-walled carbon nanotubes (MWCNTs) as the absorber. A coating prepared from SiO2 + SiC + Al (H2PO4)3 was applied to the surface of the SiCf/MWCNTs/AlPO4 composites prior to an anti-oxidation test at 1273 K in air for 40 h. The anti-oxidation effect was verified by a three-point bending test, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and a dielectric property test. Anti-oxidation mechanism investigations revealed that the coating effectiveness could be attributed to three substances, i.e., SiO2, SiP2O7, and SiO2 + AlPO4 solid solution from the reactions of SiC + O2→SiO2 + CO, SiO2 + P2O5→SiP2O7 and SiO2 + AlPO4→solid solution, respectively.

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“…As a promising reinforcement for CMCs, the SiC fibre requires an appropriate coating on its surface, because the coatings can weak the interfaces and brings a good fracture mode for the composites. 4 Among the different kinds of interface coating suggested recently, [5][6][7][8][9][10][11][12] carbon is recognised as one of the most commonly used and effective coating materials. For example, the flexural strength of Chemical vapour deposition (CVD) carbon-coated Nicalon SiC fibres reinforced Si-C-O composite was found to be five times higher than that of the uncoated Nicalon SiC fibres reinforced composite.…”

Section: Introductionmentioning

confidence: 99%

“…Among the different kinds of interface coating suggested recently, 5-12 carbon is recognised as one of the most commonly used and effective coating materials. For example, the flexural strength of Chemical vapour deposition (CVD) carbon-coated Nicalon SiC fibres reinforced Si–C–O composite was found to be five times higher than that of the uncoated Nicalon SiC fibres reinforced composite.…”

Section: Introductionmentioning

confidence: 99%

Effect of CVD carbon coatings on properties of SiC fibres

Cao

Wang

2017

Surface Engineering

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Different thicknesses of smooth and uniform carbon coatings composed of disordered carbon and micro-crystallite graphite were prepared on KD-II silicon carbide (SiC) fibres by atmospheric pressure chemical vapour deposition. The effects of carbon coatings on the mechanical property and thermal stability of SiC fibres were investigated. Carbon coatings have both favourable and unfavourable influences on SiC fibres strength. The fibres with up to 0.3 µm carbon coatings showed higher strength than the uncoated fibres due to surface flaw healing effect of the thin coatings, in contrast, the 1 µm carbon-coated fibres showed lower strength than uncoated fibres owing to effect of soft nature of the thick coatings. Furthermore, the carbon coatings effectively improved the thermal stability of SiC fibres by suppressing thermal decomposition of SiC X O Y and SiC X O Y N Z phase.

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A glass coating for SiC fiber reinforced aluminum phosphate matrix (SiCf/AlPO4) composites for high-temperature absorbing wave applications

Cited by 21 publications

References 30 publications

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

RETRACTED: Durable Superhydrophobic Coatings Based on Silica Nanoparticles for 5G Radome

The Influence of SiO2 + SiC + Al (H2PO4)3 Coating on Mechanical and Dielectric Properties for SiCf/MWCNTS/AlPO4 Composites

Effect of CVD carbon coatings on properties of SiC fibres

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