scholarly journals Nanostructured silicon carbide ceramics fabricated through liquid-phase sintering by spark plasma sintering

2011 ◽  
Vol 119 (1386) ◽  
pp. 129-132 ◽  
Author(s):  
Mikinori HOTTA ◽  
Hideki KITA ◽  
Junichi HOJO
2015 ◽  
Vol 98 (9) ◽  
pp. 2745-2753 ◽  
Author(s):  
Benito Román-Manso ◽  
Manuel Belmonte ◽  
María Isabel Osendi ◽  
Pilar Miranzo

2014 ◽  
Vol 125 (2) ◽  
pp. 257-259 ◽  
Author(s):  
M.D. Unlu ◽  
G. Goller ◽  
O. Yucel ◽  
F.C. Sahin

2016 ◽  
Vol 42 (11) ◽  
pp. 12686-12693 ◽  
Author(s):  
D.O. Moskovskikh ◽  
Y. Song ◽  
S. Rouvimov ◽  
A.S. Rogachev ◽  
A.S. Mukasyan

2017 ◽  
Vol 43 (12) ◽  
pp. 9005-9011 ◽  
Author(s):  
Eszter Bódis ◽  
Ildikó Cora ◽  
Csaba Balázsi ◽  
Péter Németh ◽  
Zoltán Károly ◽  
...  

Author(s):  
E. G. Pashuk ◽  
G. D Kardashova ◽  
Sh. A. Khalilov

The paper discusses the possibility of using resonant ultrasonic spectroscopy (RUS) as a source of information for the physics and technology of obtaining silicon carbide ceramics by the example of samples of the composition SiC ‒ 25 % AlN, obtained by the method of spark plasma sintering. The possibility of obtaining a complete set of elastic moduli (EM) of samples with an error of less than 1 % is shown. At the same time, the requirements for surface quality are significantly reduced. The revealed functional relationship between EM and porosity makes it possible to create a non-destructive method of porosity control and calculate the elastic moduli at zero porosity (i. e., the elastic modulus of the ceramic matrix EM0). Comparison of EM0 samples obtained at different parameters of the technological process allows determining their optima values..


2001 ◽  
Vol 67 (1-3) ◽  
pp. 180-191 ◽  
Author(s):  
K Biswas ◽  
G Rixecker ◽  
I Wiedmann ◽  
M Schweizer ◽  
G.S Upadhyaya ◽  
...  

2021 ◽  
Author(s):  
Yao Liu

Abstract The densification mechanism of doped CeO with Si3N4 powder during Spark Plasma Sintering (SPS) was investigated under temperatures ranging from 1500 to 1750 °C at soaking pressures of 30, 40, 50 MPa. Results showed that the relative density of Si3N4 ceramics sintered at 1650 °C and 30 MPa was 97.9%. A creep model was employed to determine the mechanism, which can be interpreted on the basis of the stress exponent (n). The results showed that the mechanism was controlled by liquid phase sintering at low effective stress regime (n=1).


2007 ◽  
Vol 336-338 ◽  
pp. 1062-1064 ◽  
Author(s):  
Fa Qiang Yan ◽  
Fei Chen ◽  
Qiang Shen ◽  
Lian Meng Zhang

In this study, spark plasma sintering (SPS) was applied to prepare α-Si3N4 ceramics of different densities with magnesia, silicon dioxide, alumina as the sintering aids. The sintering behavior and liquid phase sintering (LPS) mechanism were discussed and the factors influencing the density of the prepared samples were analyzed. Microstructures of sintered samples were observed and the phase compositions were analyzed. The results showed that α-Si3N4 ceramics can be sintered by SPS based on the reaction among α-Si3N4 and sintering additives which lead to the liquid phase and the density can be well controlled from 2.48 to 3.09 g/cm3 while the content of the sintering aids changes from 10% to 28.5% and sintering temperature from 1400°C to 1500°C.


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