Synthesis/Processing of Silicon Nitride Ceramics

Pasto, A.E.

doi:10.1016/b978-0-08-096527-7.00022-2

Cited by 6 publications

(4 citation statements)

References 67 publications

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“…It is a hard ceramic having high strength over a broad temperature range, moderate thermal conductivity, low coefficient of thermal expansion, moderately high elastic modulus, and unusually high fracture toughness for a ceramic (Dressler & Riedel, 1997;Pasto, 2013;Riley, 2000). It is a hard ceramic having high strength over a broad temperature range, moderate thermal conductivity, low coefficient of thermal expansion, moderately high elastic modulus, and unusually high fracture toughness for a ceramic (Dressler & Riedel, 1997;Pasto, 2013;Riley, 2000).…”

Section: Silicon Nitride Cutting Toolsmentioning

confidence: 99%

Ceramic Cutting Tools

Whitney

2014

Comprehensive Hard Materials

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Section: Silicon Nitride Cutting Toolsmentioning

confidence: 99%

Ceramic Cutting Tools

Whitney

2014

Comprehensive Hard Materials

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“…Ceramics based on silicon nitride (Si 3 N 4 ) present high melting point and chemical stability, excepting for aquosous HF and H 2 SO 4 solutions. This compound can be produced by heating at 1300-1400 o C from the silicon powders under nitrogen atmosphere 1,2 . However, the use of catalysts based on carbon and ammonia routes is also utilized for preparing the Si 3 N 4 .…”

Section: Introductionmentioning

confidence: 99%

Effect of Boron and Carbon Addition on the Phase Transformations during High-Energy Ball Milling and Subsequent Sintering of Si3N4+B and Si3N4+C Powder Mixtures

Maruya

Lara

Lima

et al. 2016

MSF

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This study reports on effect of boron and carbon addition on the phase transformations during ball milling and subsequent sintering of Si3N4+B and Si3N4+C powder mixtures. Ball milling at room temperature was conducted using stainless steel vials (225 mL) and balls (19mm diameter), 300 rpm and a bal-to-powder weight ratio of 10:1. The as-milled powders were uniaxially compacted in order to obtain cylinder samples with 10 mm diameter, which were subsequently sintered under nitrogen atmosphere at 1500°C for 1h. Characterization of the as-milled powders and sintered samples was performed by X-ray diffraction, scanning electron microscopy, and energy dispersive spectrometry. Only peaks of Si3N4 were identified in X-ray diffractograms of as-milled Si3N4+B and Si3N4+C powders, suggesting that metastable structures were found during milling. After sintering at 1500°C for 1h, the Si3N4+BN and Si3N4+SiC ceramic composites were formed from the mechanically alloyed Si3N4+B and Si3N4+C powders.

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“…This is due largely to their attractive combinations of moderate density, high temperature strength and thermal stability at temperatures above ~1000°C, where most refractory metals oxidize too rapidly [37]. The early interest in silicon nitrides [49,50] and silicon carbides [5,6] transitioned into a strong focus on transformation toughened zirconia ceramics [51][52][53] that appeared to have the potential for dramatic improvements in fracture toughness, following the discovery of transformation toughening by Pascoe et al in 1975 [54].…”

Section: Introductionmentioning

confidence: 99%

Review of High Temperature Ceramics for Aerospace Applications

Soboyejo

Obayemi

Annan

et al. 2015

AMR

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This paper presents a review of high temperature ceramics research for aerospace applications. Following a brief historical perspective, the paper reviews the effort to toughen ceramics for high temperature structural applications. These include: efforts to toughen zirconia-based ceramics, aluminum oxide, silicon carbide, silicon nitride, molybdenum disilicide and zirconium diborides and carbon-based composites. The development of thermal protection systems is also reviewed within the context of thermal barrier coatings (TBCs) and thermal protection systems for space vehicles. The paper concludes with a final section in which the implications of the results are then discussed for the thermostructural applications of ceramics in aerospace structures.

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Synthesis/Processing of Silicon Nitride Ceramics

Cited by 6 publications

References 67 publications

Ceramic Cutting Tools

Ceramic Cutting Tools

Effect of Boron and Carbon Addition on the Phase Transformations during High-Energy Ball Milling and Subsequent Sintering of Si<sub>3</sub>N<sub>4</sub>+B and Si<sub>3</sub>N<sub>4</sub>+C Powder Mixtures

Review of High Temperature Ceramics for Aerospace Applications

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