Reaction bonded silicon nitride foams: The influence of iron disilicide on microstructure and mechanical strength

Alem, Ali; Pugh, Martin; Drew, R. A. L.

doi:10.1016/j.ceramint.2014.12.060

Cited by 14 publications

(6 citation statements)

References 23 publications

(47 reference statements)

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“…A certain orientation of the α ‐Si 3 N 4 nanowires which was developed via this technique should be suggested as a preferred one, on account of the presence (or the absence) of some specific XRD peaks; that is, the α ‐Si 3 N 4 nanowires tend to be aligned along a direction parallel to the surface of the membrane. The intensity of the peaks also suggests that the presence of the α ‐Si 3 N 4 phase increases with the increase of temperature to 1300°C, which is in good agreement with a previous report . The increase in sintering temperature seemingly favors α ‐ β phase transformation.…”

Section: Resultssupporting

confidence: 91%

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Fabrication of α‐Si₃N₄‐nanowire/γ‐Y₂Si₂O₇ composite superhydrophobic membrane for membrane distillation

Yang

Dong

Wang

et al. 2019

Int J Applied Ceramic Tech

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This paper reports on the successful fabrication of α-Si 3 N 4 -nanowire/Y 2 Si 2 O 7 composite membranes with superhydrophobic properties, aiming to achieve a high performance in membrane distillation. The starting powder mixture of 87 wt% γ-Y 2 Si 2 O 7 , 5 wt% Si, 3 wt% LiYO 2 , and 5 wt% ferrocene catalyst was dispersed in a stable sus-How to cite this article: Yang M-Y, Dong B-B, Wang F-H, Xu X, Agathopoulos S. Fabrication of α-Si 3 N 4 -nanowire/γ-Y 2 Si 2 O 7 composite superhydrophobic membrane for membrane distillation. Int J Appl Ceram Technol. 2019;16:2173-2180. https://doi.

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Section: Resultssupporting

confidence: 91%

“…Direct nitriding of silicon powder is considered as the most common and low‐cost method for mass production of α ‐Si 3 N 4 . One common method is to synthesize α ‐Si 3 N 4 nanowires using Fe, Ni, or Co, as catalysts …”

Section: Introductionmentioning

confidence: 99%

Fabrication of α‐Si₃N₄‐nanowire/γ‐Y₂Si₂O₇ composite superhydrophobic membrane for membrane distillation

Yang

Dong

Wang

et al. 2019

Int J Applied Ceramic Tech

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show abstract

“…Si 3 N 4 ceramic have been widely recognized as the ideal tool materials for cutting the high temperature cast iron and nickel-based alloys due to its outstanding thermal properties, wear resistance, and high temperature material properties [1,2,3,4]. Currently, high-performance densified Si 3 N 4 ceramics are usually sintered by hot pressing sintering [5,6], hot isostatic pressure sintering [7], pressure less sintering [8], microwave sintering [3,4], reaction sintering [9,10], and spark plasma sintering [11,12,13]. Among the mentioned methods, microwave sintering is a new technology, which has high-energy utilization rate, safety, and free pollution.…”

Section: Introductionmentioning

confidence: 99%

Effects of Microwave Sintering Temperature and Holding Time on Mechanical Properties and Microstructure of Si3N4/n-SiC ceramics

Qiao

Wang

et al. 2019

Materials

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The n-SiC (nanometer SiC) is added to be the additive in order to improve the mechanical performance of Si3N4 ceramics. A microwave sintered the ceramics at different temperature and holding times. The results shows that the Si3N4/n-SiC ceramics (85 wt% Si3N4 + 5 wt% n-SiC + 5 wt% Al2O3 + 5 wt% Y2O3) have the best mechanical properties at 1600 °C, which is beneficial to the densification and β-Si3N4 phase formation for 10 min: the density, hardness, and fracture toughness were 97.1%, 14.44 GPa, and 7.77 MPa·m1/2, which increased by 2.8%, 7.0%, and 13.1%, respectively, when compared with the ceramics (90 wt% Si3N4 + 5 wt% Al2O3 + 5 wt% Y2O3).

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“…At present, the methods for preparation of Si 3 N 4 -based ceramic material are mainly based on the traditional sintering methods such as hot pressing [14,15], hot isostatic pressing [12], air pressure [16], pressureless [17], and reaction sintering [18,19]. In addition, there are new preparation techniques such as spark plasma sintering [20,21,22] and microwave sintering [3,13].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Spark Plasma Sintered Si3N4/WC Ceramic Tools

et al. 2019

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Silicon nitride (Si3N4) based ceramic tools exhibit good machinability in cutting materials such as gray cast iron, ductile iron, malleable cast iron, and superalloys due to excellent high-temperature mechanical properties. In this paper, high-performance Si3N4-based ceramic tools containing tungsten carbide (WC) and cobalt (Co) were studied. Effects of the WC content and Co content on mechanical properties and a microstructure of Si3N4-based ceramic materials were analyzed. Results showed that Si3N4-based ceramic material containing 10 wt % WC and 1 wt % Co had the best comprehensive mechanical properties at a sintering temperature of 1650 °C and holding time of 6 min, achieving Vickers hardness, fracture toughness, and room temperature bending strength of 16.96 GPa, 7.26 MPa·m1/2, and 1132 MPa, respectively. The microstructure of Si3N4-based ceramic tool material is uniform without obvious abnormal growth. The Si3N4-based ceramic tool was mainly composed of α-Si3N4, β-Si3N4, and WC phases.

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Reaction bonded silicon nitride foams: The influence of iron disilicide on microstructure and mechanical strength

Cited by 14 publications

References 23 publications

Fabrication of α‐Si₃N₄‐nanowire/γ‐Y₂Si₂O₇ composite superhydrophobic membrane for membrane distillation

Fabrication of α‐Si₃N₄‐nanowire/γ‐Y₂Si₂O₇ composite superhydrophobic membrane for membrane distillation

Effects of Microwave Sintering Temperature and Holding Time on Mechanical Properties and Microstructure of Si3N4/n-SiC ceramics

Microstructure and Mechanical Properties of Spark Plasma Sintered Si3N4/WC Ceramic Tools

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Reaction bonded silicon nitride foams: The influence of iron disilicide on microstructure and mechanical strength

Cited by 14 publications

References 23 publications

Fabrication of α‐Si3N4‐nanowire/γ‐Y2Si2O7 composite superhydrophobic membrane for membrane distillation

Fabrication of α‐Si3N4‐nanowire/γ‐Y2Si2O7 composite superhydrophobic membrane for membrane distillation

Effects of Microwave Sintering Temperature and Holding Time on Mechanical Properties and Microstructure of Si3N4/n-SiC ceramics

Microstructure and Mechanical Properties of Spark Plasma Sintered Si3N4/WC Ceramic Tools

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Fabrication of α‐Si₃N₄‐nanowire/γ‐Y₂Si₂O₇ composite superhydrophobic membrane for membrane distillation

Fabrication of α‐Si₃N₄‐nanowire/γ‐Y₂Si₂O₇ composite superhydrophobic membrane for membrane distillation