The Raman Spectra of α$$ \alpha $$‐ and β$$ \beta $$‐Si3N4 and Si2N2O Determined Experimentally and by Density Functional Theory
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Raman Spectroscopy"
DOI: 10.1002/jrs.6749
Abstract: High‐quality Raman spectra of the two silicon nitride polymorphs ‐ and ‐Si3N4 as well as of Si2N2O are presented here. This work significantly extends the previously available data on the Raman spectra of all three… read more here.
Keywords: si3n4; raman spectra; raman; functional theory ... See more keywords
Promotion of L10 Ordered Phase Transformation by the Si3N4 Top Layer on FePd Thin Films
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-017-4142-1
Abstract: Structure and magnetic properties of FePd thin films substrate on the glass with Si3N4 to player have been investigated. The results suggested that ceramic Si3N4 component distributed around the FePd nanograins, which inhibits the growth… read more here.
Keywords: si3n4; fepd thin; fepd; thin films ... See more keywords
Friction Coefficient Evolution of Si3N4 Binary Coating with a Stoichiometric Ratio of 57/43
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DOI: 10.1007/s11249-024-01909-6
Abstract: Friction coefficient depends on various factors or surface characteristics during tribological testing, and this friction coefficient can be modified by altering the properties of one of the two contacting surfaces. It is crucial to monitor… read more here.
Keywords: friction coefficient; coefficient evolution; coefficient; si3n4 ... See more keywords
Antifungal activity of Polymethyl Methacrylate/Si3N4 composites against Candida albicans.
Sign Up to like & getrecommendations! Published in 2021 at "Acta biomaterialia"
DOI: 10.1016/j.actbio.2021.03.023
Abstract: Previous studies using gram-positive and -negative bacteria demonstrated that hydrolysis of silicon nitride (Si3N4) in aqueous suspensions elutes nitrogen and produces gaseous ammonia while buffering pH. According to immunochemistry assays, fluorescence imaging, and in situ… read more here.
Keywords: si3n4; si3n4 composites; surface; chemistry ... See more keywords
Investigation on surface morphology model of Si3N4 ceramics for rotary ultrasonic grinding machining based on the neural network
Sign Up to like & getrecommendations! Published in 2017 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2016.11.044
Abstract: Abstract Si3N4 ceramics parts surface morphology is related with surface friction and wear properties directly. Poor surface morphology will result in friction coefficient increases, strength decreases, and even lead to component failures. In order to… read more here.
Keywords: si3n4; surface; model; surface morphology ... See more keywords
Wetting and joining of porous Si3N4 and dense Si3N4 ceramics with in-situ formed β-spodumene/spinel glass-ceramic interlayer
Sign Up to like & getrecommendations! Published in 2020 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2020.146178
Abstract: Abstract Efficient joining materials and techniques are of critical significance for the integration of ceramics in high performance structures. Porous Si3N4 has been successfully joined to dense Si3N4 by using a novel glass-ceramic based on… read more here.
Keywords: si3n4; dense si3n4; microscopy; glass ceramic ... See more keywords
Synthesis and textural evolution of mesoporous Si3N4 aerogel with high specific surface area and excellent thermal insulation property via the urea assisted sol-gel technique
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2019.122880
Abstract: Abstract Si3N4 aerogel, which is one of the most promising materials for application as high-temperature thermal insulation, is synthesized by the urea-assisted sol-gel technique, followed by the supercritical drying, carbonization, carbothermal reduction and carbon combustion… read more here.
Keywords: si3n4; si3n4 aerogel; evolution; surface ... See more keywords
Simple fabrication of highly dispersive β-Si3N4 seeds with moderate aspect ratio
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2016.11.084
Abstract: A powder mixture was prepared using α-phase-rich silicon nitride (Si3N4) as the major raw material, with 0.5 wt% Yb2O3 as the additive. These powders were fired at 1650–1800 °C for 0.5–2 h at a nitrogen… read more here.
Keywords: si3n4; simple fabrication; aspect ratio; si3n4 seeds ... See more keywords
Synthesis and formation mechanism of α-Si3N4 single-crystalline nanowires via direct nitridation of H2-treated SiC fibres
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DOI: 10.1016/j.ceramint.2018.04.094
Abstract: Abstract Silicon nitride (Si3N4) nanowires were synthesised using H2-treated SiC fibres as raw materials and a graphite cylinder as the substrate at 1500 °C in N2 atmosphere. The nanowires were characterised by X-ray photoelectron spectroscopy, chemical… read more here.
Keywords: si3n4; mechanism; microscopy; sic fibres ... See more keywords
Growth mechanism of α-Si3N4 submicron rods prepared from amorphous Si3N4 powders
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DOI: 10.1016/j.ceramint.2018.08.078
Abstract: Abstract Novel polycrystal α-Si 3 N 4 submicron rods have been successfully prepared from amorphous Si 3 N 4 powders. As-synthesized submicron rods have oblate section, with the size of 110–150 nm in height, 150–300 nm in… read more here.
Keywords: si3n4; mechanism; microscopy; submicron ... See more keywords
Microstructure and mechanical properties of Si3N4f/Si3N4 composites with different coatings
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.04.020
Abstract: Abstract The Si3N4 coating and Si3N4 coating with Si3N4 whiskers as reinforcement (Si3N4w-Si3N4) were prepared by chemical vapor deposition (CVD) on two-dimensional silicon nitride fiber reinforced silicon nitride ceramic matrix composites (2D Si3N4f/Si3N4 composites). The… read more here.
Keywords: microstructure mechanical; mechanical properties; si3n4; si3n4f si3n4 ... See more keywords