Polymer Derived Ceramics with β-Eucryptite Fillers: Filler-Matrix Interactions†
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DOI: 10.1002/adem.201700079
Abstract: Polymer derived ceramics with s-eucryptite are manufactured and filler-matrix interactions in the temperature range between 800 and 1 100 °C are investigated. Pyrolysis temperatures above 1 000 °C led to changes of the β-eucryptite phase, due to a significant… read more here.
Keywords: matrix interactions; eucryptite fillers; filler matrix; ceramics eucryptite ... See more keywords
Polymer-derived Si3N4 nanofelts for flexible, high temperature, lightweight and easy-manufacturable super-thermal insulators
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DOI: 10.1016/j.apmt.2020.100648
Abstract: Abstract Nowadays, the best thermal insulators are aerogel-based materials. However, their industrial application is constrained by a complex synthesis route (requiring supercritical drying) and by their fragility. Moreover, the most common aerogels, based on amorphous… read more here.
Keywords: nanofelts flexible; temperature; thermal insulators; si3n4 nanofelts ... See more keywords
Polymer derived SiC environmental barrier coatings with superwetting properties
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2017.05.326
Abstract: Abstract Surfaces with superwetting capabilities can be used for corrosion protection, self-cleaning and bio-fouling protection amongst other applications. In this work, we present a method to produce a SiC coating with an almost superhydrophobic behavior… read more here.
Keywords: water contact; environmental barrier; sic environmental; polymer derived ... See more keywords
Dielectric property and interfacial polarization of polymer-derived amorphous silicon carbonitride
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DOI: 10.1016/j.ceramint.2017.06.081
Abstract: Abstract The dielectric behavior of polymer-derived amorphous silicon carbonitride was investigated. The material exhibited an interfacial polarization. Although such a polarization exhibited a sharp decrease in the dielectric constant with frequency, the loss peak from… read more here.
Keywords: derived amorphous; polarization; silicon carbonitride; polymer derived ... See more keywords
Anomalous piezo-dielectricity of a polymer-derived amorphous silicoaluminum oxycarbide (SiAlCO)
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DOI: 10.1016/j.ceramint.2017.10.049
Abstract: Abstract The piezo-dielectricity of a polymer-derived amorphous silicoaluminum oxycarbide ( a -SiAlCO) was studied. The material showed a relatively high dielectric constant and anomalous piezo-dielectricity characterized by a positive pressure coefficient as high as 0.10–0.25 MPa… read more here.
Keywords: anomalous piezo; piezo; dielectricity polymer; piezo dielectricity ... See more keywords
The influence of carbon materials on the absorption performance of polymer-derived SiCN ceramics in X-band
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DOI: 10.1016/j.ceramint.2018.05.240
Abstract: Abstract Carbon-containing polymer-derived SiCN ceramics (PDCs-SiCN-C) were successfully fabricated with multi-layer graphene (MLG) and multiwalled carbon nanotubes (MWCNTs) as additives at 1100 °C. The effects of MLG and MWCNTs on the microwave absorption properties of PDCs-SiCN-C… read more here.
Keywords: polymer derived; sicn ceramics; carbon; derived sicn ... See more keywords
Polymer derived silicon oxycarbide ceramic monoliths: Microstructure development and associated materials properties
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DOI: 10.1016/j.ceramint.2018.08.102
Abstract: Abstract Polymer derived SiOC and SiCN ceramics (PDCs) are interesting candidates for additive manufacturing techniques to develop micro sized ceramics with the highest precision. PDCs are obtained by the pyrolysis of crosslinked polymer precursors at… read more here.
Keywords: oxycarbide ceramic; ceramic monoliths; silicon oxycarbide; polymer derived ... See more keywords
Phase evolution, nanostructure, and oxidation resistance of polymer derived SiTiOC ceramic hybrid
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DOI: 10.1016/j.ceramint.2018.12.024
Abstract: Abstract Si based polymer-derived ceramics (PDCs) have emerged as potential materials in the fabrication of thermo-structural composites. Among the many PDCs, silicon oxycarbide (SiOC) can be fabricated from commercially available polysiloxanes and/or polysilsesquioxanes. However, SiCO… read more here.
Keywords: oxidation; sitioc ceramic; polymer derived; phase ... See more keywords
Fabrication of grooves on polymer-derived SiAlCN ceramics using femtosecond laser pulses
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DOI: 10.1016/j.ceramint.2020.01.209
Abstract: Abstract In this study, grooves were fabricated on the surface of fully dense polymer-derived SiAlCN ceramics. Industrial femtosecond laser source was used at wavelength of 1030 nm with pulse duration of 290 fs and repetition rate… read more here.
Keywords: laser; fabrication; femtosecond laser; polymer derived ... See more keywords
Fabrication of a thin double-layer thermistor based on DVB-modified polymer-derived SiCN ceramics
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2017.10.242
Abstract: Abstract Polymer-derived ceramics (PDCs) are considered to be promising candidate materials for high-temperature sensor applications. Even though the PDCs have been studied for decades, the reliable PDC-based thin film sensors have not been produced, because… read more here.
Keywords: temperature; layer; thermistor; polymer ... See more keywords
A conductive polymer derived N-doped carbon nanofiber supported Li2S coating layer for Li–S batteries with high mass loading
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DOI: 10.1016/j.jallcom.2020.154264
Abstract: Abstract The commercialization of Li2S as a potential candidate for lithium-sulfur cathode material is hampered due to its low electronic conductivity, the “shuttle effect” and the initial energy barrier. In this work, nanosized Li2S particles… read more here.
Keywords: carbon; layer; polymer derived; conductive polymer ... See more keywords