Comparative study of fluoride and non-fluoride additives in high thermal conductive silicon nitride ceramics fabricated by spark plasma sintering and post-sintering heat treatment

2018 ◽  
Vol 44 (18) ◽  
pp. 23202-23207 ◽  
Author(s):  
Chunping Yang ◽  
Feng Ye ◽  
Jie Ma ◽  
Junjie Ding ◽  
Biao Zhang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Silicon Nitride ◽  
Comparative Study ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Nitride Ceramics ◽  
Spark Plasma

Effect of β-Si3N4 Powder on Thermal Conductivity of Silicon Nitride Ceramics

2015 ◽  
Vol 655 ◽  
pp. 11-16 ◽  
Author(s):  
Xing Li Liu ◽  
Meng Meng Peng ◽  
Xiao Shan Ning ◽  
Yosuke Takahashi
Keyword(s):  
Thermal Conductivity ◽  
Heat Treatment ◽  
High Temperature ◽  
Silicon Nitride ◽  
High Temperature Heat Treatment ◽  
Plasma Sintering ◽  
Nitride Ceramics ◽  
Temperature Heat ◽  
Spark Plasma ◽  
Temperature Heat Treatment

To investigate the influence of β-Si3N4 powder on thermal conductivity of silicon nitride, coarse, fine β-Si3N4 powder and various β-Si3N4/α-Si3N4 ratios of starting powders were adopted to fabricate ceramics by spark plasma sintering at 1600°Cand subsequent high-temperature heat treatment at 1900°C with the sintering additives of Y2O3 and MgO. It is found that with more fine β-Si3N4 powder in the starting powder, β-Si3N4 grains exhibit high thermal conductivity, which is partly resulted from the compaction of β-Si3N4 grains.

Indentation strength of silicon nitride ceramics processed by spark plasma sintering technique

2015 ◽  
Vol 644 ◽  
pp. 159-170 ◽  
Author(s):  
N. Azeggagh ◽  
L. Joly-Pottuz ◽  
J. Chevalier ◽  
M. Omori ◽  
T. Hashida ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Nitride Ceramics ◽  
Spark Plasma

Spark Plasma Sintering of fine alpha-silicon nitride ceramics with LAS for spatial applications

2011 ◽  
Vol 31 (4) ◽  
pp. 645-652 ◽  
Author(s):  
Helen Reveron ◽  
Laurent Blanchard ◽  
Yann Vitupier ◽  
Emmanuelle Rivière ◽  
Guillaume Bonnefont ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Nitride Ceramics ◽  
Spark Plasma

A study on fabrication of silicon nitride-based advanced ceramic composite materials via spark plasma sintering

2021 ◽  
pp. 146442072110135
Author(s):  
Aqib Hussain Mir ◽  
SN Ahmad
Keyword(s):  
Silicon Nitride ◽  
Spark Plasma Sintering ◽  
Ceramic Materials ◽  
Additive Concentration ◽  
Heating Rates ◽  
Silicon Nitride Ceramic ◽  
Advanced Ceramic ◽  
Plasma Sintering ◽  
Nitride Ceramics ◽  
Spark Plasma

The present study provides an overview of the fabrication of silicon nitride (Si3N4)-based advanced ceramic materials using spark plasma sintering. Being an excellent engineering ceramic material, silicon nitride is extensively being used in tribological components, aerospace, and automotive industries due to its unique blend of thermo-mechanical, tribological, and chemical properties. The selection of the sintering process, as well as sintering aids, strongly affects the properties of silicon nitride ceramics. Several conventional sintering techniques have been utilized in the past to optimize the structure and properties of silicon nitride ceramics such as hot pressing. However, spark plasma sintering, a relatively new, non-conventional, powder consolidating technique has recently gained significant attention to fabricate silicon nitride ceramic due to high heating rates, extremely short sintering time, and relatively low sintering temperatures which renders it an ideal technique for mass production. Both the composition and concentration of sintering additives during processing play a vital part in achieving the final desired properties of the bulk silicon nitride ceramic materials. In this review, the critical aspects like the effects of additive composition, additive concentration, and sintering parameters on microstructure and bulk properties of silicon nitride ceramics fabricated via spark plasma sintering are presented. The review may come in handy for scientists and engineers concerned with fabricating future silicon nitride composites with desired properties and performance for different engineering applications.

Reactive, nonreactive, and flash spark plasma sintering of Al 2 O 3 /SiC composites—A comparative study

2019 ◽  
Vol 103 (1) ◽  
pp. 520-530
Author(s):  
Karen S. Torosyan ◽  
Alexey S. Sedegov ◽  
Kirill V. Kuskov ◽  
Mohammad Abedi ◽  
Dmitry I. Arkhipov ◽  
...  
Keyword(s):  
Comparative Study ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sic Composites

Sintering Behavior of TiC-Fe Based Composite Fabricated by Spark Plasma Sintering Using TiH2 Graphite Powders

2007 ◽  
Vol 534-536 ◽  
pp. 217-220 ◽  
Author(s):  
Sung Yeal Bae ◽  
In Sup Ahn ◽  
Ho Jung Cho ◽  
Chul Jin Kim ◽  
Dong Kyu Park
Keyword(s):  
Heat Treatment ◽  
Spark Plasma Sintering ◽  
Temperature Increase ◽  
Metal Matrix ◽  
Sintering Behavior ◽  
Matrix Composites ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Particulate Reinforced ◽  
Continuous Metal

TiC particulate reinforced Fe matrix composite compacts with controlled interfacial reaction was processed by spark plasma sintering after mechanical alloying. Milled powders were fabricated for 1-5 hours by spex shaker mill with the ball to powder ratio of 25:2. Metal matrix composites (MMCs) based on the Fe-40%TiC system can be synthesized by spark plasma sintering of the D’AE powders with TiH2-graphite powders under vacuum in the temperature range 1273-1473K for 5-20 min. TiC phase was formed by self combustion reaction with temperature increase. The specimen that was formed by sintering Fe-TiC powders displayed a microstructure of uniformly dispersed TiC grain in a continuous metal matrix. The densifications of the TiC-Fe materials were increased as the heat-treatment holding time increasing. In the same time, relative density and hardness of TiC-Fe sintering materials was increased.

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