Studies on processing of layered oxide‐bonded porous sic ceramic filter materials

2021 ◽  
Author(s):  
Atanu Dey ◽  
Nijhuma Kayal ◽  
Omprakash Chakrabarti ◽  
Nilo M. Fortes ◽  
Murilo D. M. Innocentini ◽  
...  
Keyword(s):  
Ceramic Filter ◽  
Layered Oxide ◽  
Filter Materials ◽  
Sic Ceramic ◽  
Porous Sic

Preparation of porous SiC ceramic with a woodlike microstructure by sol-gel and carbothermal reduction processing

2004 ◽  
Vol 24 (10-11) ◽  
pp. 3251-3259 ◽  
Author(s):  
Jun-Min Qian ◽  
Ji-Ping Wang ◽  
Guan-Jun Qiao ◽  
Zhi-Hao Jin
Keyword(s):  
Carbothermal Reduction ◽  
Sol Gel ◽  
Sic Ceramic ◽  
Porous Sic

Study on the Water Treatment Properties of the Porous Ceramic Filter Balls Synthesized with Industrial Solid Waste

2013 ◽  
Vol 320 ◽  
pp. 683-687
Author(s):  
Yong Jiang Di ◽  
Bi Jia ◽  
Jun Wang ◽  
Xiao Hong Xu ◽  
Jian Feng Wu
Keyword(s):  
Water Treatment ◽  
Solid Waste ◽  
Quartz Sand ◽  
Porous Ceramic ◽  
Ceramic Filter ◽  
Water Turbidity ◽  
Sand Filter ◽  
Ceramic Ball ◽  
Industrial Solid Waste ◽  
Filter Materials

The porous ceramic filter balls were synthesized with industrial solid waste by ceramic process. The removal efficiency, filtration velocity and turbidity for the water treatment properties of the porous ceramic ball filter materials was studied comparing with that of the quartz sand filter materials. The test result shown that the decontamination efficiency of the porous ceramic ball filter was 5% to 10% high than that of the quartz sand filter. When the water turbidity fluctuated with magnitude about 50%, the changes of final water turbidity was in the range of 5% to 8% through the porous ceramic ball filter. The energy saving efficiency of the porous ceramic ball filter was very significant for the porous ceramic ball filter effectively extend the filtration cycle life.

Preparation and Thermal-Physical Properties of Three Dimensional Bicontinuous SiC/Cu-Si Composite

2014 ◽  
Vol 804 ◽  
pp. 187-190 ◽  
Author(s):  
Kuo Zhang ◽  
Hong Yan Xia ◽  
Bo Wang ◽  
Zhong Qi Shi ◽  
Xiang Zhao Zhang ◽  
...  
Keyword(s):  
Physical Properties ◽  
Coefficient Of Thermal Expansion ◽  
Three Dimensional ◽  
Cu Alloy ◽  
Sic Ceramic ◽  
3D Network ◽  
Spontaneous Infiltration ◽  
Bicontinuous Structure ◽  
Porous Sic ◽  
Thermo Physical Properties

A three dimensional (3D) SiC/Cu-Si composite with bicontinuous structure was fabricated by spontaneous infiltration method, using porous recrystallized SiC ceramic with porosity of 37% as 3D network reinforcement and Cu alloy (Cu-18Si) as matrix. The phase composition, microstructure, and thermo-physical properties of the as-prepared 3D-SiC/Cu-Si composite were investigated. The experimental results showed that the Cu-18Si alloy could fully penetrate into the porous SiC ceramic at 1600 °C for 2 h spontaneously. SiC and Cu15Si4 phases were identified in the as-prepared composites. The interfacial bond between SiC and Cu-Si alloy was tightly and no severe interfacial reaction was observed. The thermal conductivity and coefficient of thermal expansion of the as-prepared 3D-SiC/Cu-Si composite were changed from 89.8 to 55 W·m-1·K-1 and 7.512 to 9.64×10-6 °C-1 with the temperature increased from room temperature to 500 °C, respectively.

Fabrication of Foam-Type Porous Silicon Carbide without Cracks and Hollow Struts

2016 ◽  
Vol 369 ◽  
pp. 48-52
Author(s):  
Jeong Won Bang ◽  
Soo Ryong Kim ◽  
Young Hee Kim ◽  
Dong Geun Shin ◽  
Yoon Joo Lee ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Silicon Oxycarbide ◽  
X Ray Diffraction ◽  
Porous Silicon Carbide ◽  
Air Atmosphere ◽  
Sic Ceramics ◽  
Sic Ceramic ◽  
Curing Condition ◽  
Porous Sic

Foam-type porous silicon carbide (SiC) ceramics without cracks and hollow struts were fabricated using the polymer replica method with polycarbosilane (PCS) and polyurethane (PU) foam as the starting materials. The synthesized porous SiC was analyzed using X-ray diffraction and scanning electron microscopy. The results revealed that a porous SiC ceramic structure was formed with a dense framework at a low temperature of 1200°C. During the heat-treatment process, the PCS experienced an organic–inorganic transformation and then converted to the SiC ceramics. It was determined that the organic–inorganic transformation of PCS, which was the stage of silicon oxycarbide formation, is affected by the curing condition. In this study, the optimum curing condition was determined to be an air atmosphere at 200°C for 7 h.

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