scholarly journals Nonaqueous gel casting using multicomponent concentrated slurries through Michael additive reaction for fabricating silicon nitride dense ceramics

2021 ◽  
Vol 32 (2) ◽  
pp. 472-479
Author(s):  
Motoyuki Iijima ◽  
Kenta Hasegawa ◽  
Junichi Tatami
Keyword(s):  
Silicon Nitride ◽  
Gel Casting ◽  
Nonaqueous Gel ◽  
Additive Reaction

scholarly journals Gel casting of silicon nitride foams using biopolymers as gelling agents

Open Ceramics ◽  
2021 ◽  
Vol 8 ◽  
pp. 100183
Author(s):  
E. Guzi de Moraes ◽  
M.D.M. Innocentini ◽  
L. Biasetto ◽  
A.P. Novaes de Oliveira ◽  
D. Hotza ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Gelling Agents ◽  
Gel Casting

Effect of Various Dispersants on the Gel-Casting of Silicon Nitride

2007 ◽  
Vol 336-338 ◽  
pp. 991-993 ◽  
Author(s):  
Li Peng Qian ◽  
Feng Hou ◽  
Ting Xian Xu
Keyword(s):  
Silicon Nitride ◽  
Gum Arabic ◽  
Solid Content ◽  
Solid Loading ◽  
Green Body ◽  
Nitride Powder ◽  
High Solid Loading ◽  
Gel Casting ◽  
Silicon Nitride Powder ◽  
Aqueous Silicon

A high solid loading of dispersed silicon nitride slurry was prepared with various dispersants, which allowed a stable silicon nitride suspension with sintering additives (cordierite) in alkaline regions to a solid content of 45 vol%. Gum arabic, PMAA-NH4, TMAH, PAA-NH4 and their composites were selected as dispersants. The results suggested that the composite dispersant which was obtained using PAA-NH4 and TMAH with the ratio in 4:1 was more effective in aqueous silicon nitride powder suspensions system than simplex dispersant. The green bodies derived exhibited a mechanical strength as high as 8.7MPa and SEM photos revealed that the green body also had a high homogeneity.

Fabrication and properties of porous silicon nitride wave-transparent ceramics via gel-casting and pressureless sintering

2016 ◽  
Vol 663 ◽  
pp. 174-180 ◽  
Author(s):  
Xuejin Yang ◽  
Bin Li ◽  
Changrui Zhang ◽  
Siqing Wang ◽  
Kun Liu ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Porous Silicon ◽  
Pressureless Sintering ◽  
Transparent Ceramics ◽  
Gel Casting

Synthesis of Porous Silicon Nitride-Boron Nitride Composites by Gel-Casting and PIP

2014 ◽  
Vol 23 (8) ◽  
pp. 2829-2833 ◽  
Author(s):  
Kun Liu ◽  
Changrui Zhang ◽  
Bin Li ◽  
Siqing Wang ◽  
Feng Cao
Keyword(s):  
Silicon Nitride ◽  
Porous Silicon ◽  
Boron Nitride ◽  
Gel Casting
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