Articles with "si3n4" as a keyword



Photo by marius from unsplash

Promotion of L10 Ordered Phase Transformation by the Si3N4 Top Layer on FePd Thin Films

Sign Up to like & get
recommendations!
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
Photo from wikipedia

Antifungal activity of Polymethyl Methacrylate/Si3N4 composites against Candida albicans.

Sign Up to like & get
recommendations!
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
Photo from wikipedia

Investigation on surface morphology model of Si3N4 ceramics for rotary ultrasonic grinding machining based on the neural network

Sign Up to like & get
recommendations!
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
Photo from wikipedia

Wetting and joining of porous Si3N4 and dense Si3N4 ceramics with in-situ formed β-spodumene/spinel glass-ceramic interlayer

Sign Up to like & get
recommendations!
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
Photo from wikipedia

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 & get
recommendations!
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
Photo by sarahdorweiler from unsplash

Simple fabrication of highly dispersive β-Si3N4 seeds with moderate aspect ratio

Sign Up to like & get
recommendations!
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
Photo from wikipedia

Synthesis and formation mechanism of α-Si3N4 single-crystalline nanowires via direct nitridation of H2-treated SiC fibres

Sign Up to like & get
recommendations!
Published in 2018 at "Ceramics International"

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
Photo from wikipedia

Growth mechanism of α-Si3N4 submicron rods prepared from amorphous Si3N4 powders

Sign Up to like & get
recommendations!
Published in 2018 at "Ceramics International"

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
Photo by fozzie from unsplash

Microstructure and mechanical properties of Si3N4f/Si3N4 composites with different coatings

Sign Up to like & get
recommendations!
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
Photo by dariusbashar from unsplash

Fabrication, mechanical properties and thermal shock resistance of a dense SiC NWs/α-Si3N4 composite coating for protecting porous Si3N4 ceramics

Sign Up to like & get
recommendations!
Published in 2019 at "Ceramics International"

DOI: 10.1016/j.ceramint.2019.08.020

Abstract: Abstract To prevent porous Si3N4 ceramics from absorbing moisture in practical application, a dense SiC NWs/α-Si3N4 composite coating was fabricated using the two-step technology involving slurry and liquid infiltration method. The results revealed that the… read more here.

Keywords: sic nws; thermal shock; si3n4; porous si3n4 ... See more keywords
Photo from wikipedia

Microstructure, mechanical properties and sintering mechanism of pressureless-sintered porous Si3N4 ceramics with YbF3-MgF2 composite sintering aids

Sign Up to like & get
recommendations!
Published in 2020 at "Ceramics International"

DOI: 10.1016/j.ceramint.2019.09.114

Abstract: Abstract Porous Si3N4 ceramics were fabricated by pressureless sintering at 1550 °C for 2 h with YbF3-MgF2 composite sintering aids, systematically investigated for the effect of sintering aids addition on the microstructure and mechanical properties, further explored… read more here.

Keywords: si3n4; sintering aids; mechanical properties; ybf3 mgf2 ... See more keywords