Fabrication of 3D Interconnected Porous SiC by Gel-Assisted Foaming Method

被引：0

作者：

Zhao Jing ^{[1
]}

Xu Hanchuan ^{[1
]}

Ru Hongqiang ^{[2
]}

Yuan Zhigang ^{[1
]}

机构：

[1] Shenyang Ligong Univ, Shenyang 110159, Peoples R China

[2] Northeastern Univ, Minist Educ ATM, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2020年 / 49卷 / 02期

关键词：

3D interconnected porous SiC; stirring-foaming; freeze-gelcasting; porosity; CERAMICS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three dimensional interconnected porous SiC ceramics were prepared via combining stirring-foaming and freeze-gelcasting methods. The obtained porous ceramics have tunable porous structure, uniform pore size distribution and multiply porous structure. The effect of PVA and stirring speed on porous structure and properties of SiC porous ceramics was investigated. The results show that the uniformity of porous structure can be tuned by varying omega(PVA)/omega(SiC), which is optimum when the value is 1.5. The porosity increases, and 1st mode pore size and pore wall thickness decrease with increasing the PVA content. The porous structure can be improved by increasing stirring speed. When stirring speed is 1600 r/min, the porosity and compressive strength are 88.42% and 4.36 MPa, respectively.

引用

页码：618 / 622

页数：5

共 21 条

[1] Hierarchical porous ceramics via two-stage freeze casting of preceramic polymers
Arai, Noriaki
Faber, Katherine T.
[J]. SCRIPTA MATERIALIA, 2019, 162 : 72 - 76
[2] Very long SiC-based coaxial nanocables with tunable chemical composition
Bechelany, Mikhael
Brioude, Arnaud
Stadelmann, Pierre
Ferro, Gabriel
Cornu, David
Miele, Philippe
[J]. ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (16) : 3251 - 3257
[3] Chang Binbin, 2015, RCS ADV, V5, P72019
[4] A simple direct casting route to ceramic foams
Dhara, S
Bhargava, P
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (10) : 1645 - 1650
[5] Fabrication of mullite-bonded porous SiC ceramics via a sol-gel assisted in situ reaction bonding
Ebrahimpour, Omid
Dubois, Charles
Chaouki, Jamal
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (02) : 237 - 247
[6] Silicon carbide-based foams from direct blowing of polycarbosilane
Fukushima, Manabu
Colombo, Paolo
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2012, 32 (02) : 503 - 510
[7] Improvement of porous silicon carbide filters by growth of silicon carbide nanowires using a modified carbothermal reduction process
Lee, Jin-Seok
Lee, Sea-Hoon
Choi, Sung-Churl
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 467 (1-2) : 543 - 549
[8] Lozinsky Vladimir I., 1998, RUSS CHEM REV, V67, P573
[9] On the development of ice-templated silicon carbide scaffolds for nature-inspired structural materials
Naglieri, Valentina
Bale, Hrishikesh A.
Gludovatz, Bernd
Tomsia, Antoni P.
Ritchie, Robert O.
[J]. ACTA MATERIALIA, 2013, 61 (18) : 6948 - 6957
[10] Paolo Colombo, 2002, KEY ENG MATER, V17, P206

← 1 2 3 →