Effect of polyethyleneimine-fatty acid complex type dispersant structure on the overall processing chain of Si3N4 ceramics using multicomponent non-aqueous slurries
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DOI: 10.1016/j.apt.2018.09.025
Abstract: Abstract The effect of fatty acid structure of polyethyleneimine (PEI)-fatty acid complex, which was designed as a polymer dispersant for multi-component non-aqueous slurries, on the overall processing chain of Si3N4 ceramics involving slurry stabilization, spray… read more here.
Keywords: pei isa; fatty acid; effect; pei ... See more keywords
Fabrication and mechanical properties of porous Si3N4 ceramics prepared via SHS
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.04.218
Abstract: Abstract Porous silicon nitride ceramics were directly prepared by self-propagating high temperature synthesis (SHS). The effects of Si 3 N 4 diluent and Y 2 O 3 sintering additive on the phase composition and microstructure… read more here.
Keywords: fabrication; mechanical properties; si3n4 ceramics; properties porous ... See more keywords
Microstructure, mechanical properties and sintering mechanism of pressureless-sintered porous Si3N4 ceramics with YbF3-MgF2 composite sintering aids
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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
Silicon nitride ceramics consolidated by oscillatory pressure sintering
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DOI: 10.1016/j.ceramint.2020.02.021
Abstract: Abstract We report the fabrication of silicon nitride (Si3N4) ceramics with high flexural strength by oscillatory pressure sintering (OPS). The effects of the sintering procedure on the grain growth, microstructure evolution, and mechanical properties of… read more here.
Keywords: silicon nitride; nitride ceramics; si3n4 ceramics; pressure sintering ... See more keywords
Effect of composite sintering additives containing non-oxide on mechanical, thermal and dielectric properties of silicon nitride ceramics substrate
Sign Up to like & getrecommendations! Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2021.01.224
Abstract: Abstract Silicon nitride (Si3N4) ceramics with magnesium silicon nitride (MgSiN2) and Y2O3 as sintering additives were prepared by the gas-pressure sintering method. By changing the contents of MgSiN2 and Y2O3 in the range of 7–9… read more here.
Keywords: silicon nitride; sintering additives; dielectric properties; si3n4 ceramics ... See more keywords
In-situ preparation of SiC reinforced Si3N4 ceramics aerogels by foam-gelcasting method
Sign Up to like & getrecommendations! Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2021.09.201
Abstract: Abstract High strength SiC reinforced Si3N4 ceramics aerogels (SCSNCAs) were fabricated via foam-gelcasting and subsequent catalytic reaction, utilizing industrial Si and melamine as raw materials, a small amount of incidental Fe impurities in Si powder… read more here.
Keywords: ceramics aerogels; foam gelcasting; reinforced si3n4; sic ... See more keywords
Microstructure and EMW absorbing properties of SiCnw/SiBCN-Si3N4 ceramics annealed at different temperatures
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2019.11.040
Abstract: Abstract SiC nanowire/siliconboron carbonitride-Silicon nitride (SiCnw/SiBCN-Si3N4) ceramics were prepared via a low-pressure chemical vapor deposition and infiltration (LPCVD/CVI) technique. The as-prepared ceramics were annealed at varying temperatures (1200–1600 °C) in a N2 atmosphere, and their crystallization… read more here.
Keywords: ceramics annealed; sicnw sibcn; absorbing properties; sibcn si3n4 ... See more keywords
Synthesis of self-toughness porous Si3N4 ceramics with three-dimensional cage structures
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DOI: 10.1016/j.matlet.2020.127651
Abstract: Abstract Self-toughness porous Si3N4 ceramics are prepared by surface modification of Si3N4 particles. The as-fabricated porous Si3N4 ceramics have high number of three-dimensional cage structures that can cause the crack deflection, absorb the fracture stress… read more here.
Keywords: si3n4; three dimensional; dimensional cage; cage structures ... See more keywords
A novel route for the fabrication of porous Si3N4 ceramics with unidirectionally aligned channels
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DOI: 10.1016/j.matlet.2020.128264
Abstract: Abstract TBA-based freeze-drying and combustion synthesis (CS) are firstly combined to fabricate porous Si3N4 ceramics with controllably unidirectional channels. Uniformly unidirectional channels with variable pore diameters were successfully formed through unidirectional growth of ice. In… read more here.
Keywords: si3n4; fabrication porous; novel route; route fabrication ... See more keywords
Study of the mechanical properties and toughening mechanism of ZrO2 particles toughened Si3N4 ceramics
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DOI: 10.1166/mex.2020.1695
Abstract: Si3N4 ceramic has excellent properties such as high temperature resistance, high hardness, and high thermal stability, but it has the disadvantages of high hardness and brittleness and difficulty in later processing. In this paper, ZrO2… read more here.
Keywords: toughened si3n4; mechanism zro2; zro2; toughening mechanism ... See more keywords