Manufacturing and testing of surface modified silicon carbide aspheric mirror

2019 ◽  
Author(s):  
Jiaoteng Ding ◽  
Xue wu FAN ◽  
Zhihai PANG ◽  
Liangjie FENG ◽  
Qinfang CHEN ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Aspheric Mirror ◽  
Surface Modified

Manufacture technology status of surface modified silicon carbide mirrors

2013 ◽  
Vol 6 (6) ◽  
pp. 824-833 ◽  
Author(s):  
康健 KANG Jian ◽  
宣斌 XUAN Bin ◽  
谢京江 XIE Jing-jiang
Keyword(s):  
Silicon Carbide ◽  
Manufacture Technology ◽  
Surface Modified

scholarly journals Fracture Toughness Improvement of Poly(lactic acid) Reinforced with Poly(ε-caprolactone) and Surface-Modified Silicon Carbide

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Jie Chen ◽  
Tian-Yi Zhang ◽  
Fan-Long Jin ◽  
Soo-Jin Park
Keyword(s):  
Fracture Toughness ◽  
Silicon Carbide ◽  
Lactic Acid ◽  
Poly Lactic Acid ◽  
External Energy ◽  
Solution Blending ◽  
Blending Method ◽  
Sic Whiskers ◽  
Sic Composites ◽  
Surface Modified

In this study, bio-based poly(lactic acid) (PLA)/polycaprolactone (PCL) blends and PLA/PCL/silicon carbide (SiC) composites were prepared using a solution blending method. The surface of the SiC whiskers was modified using a silane coupling agent. The effects of the PCL and SiC contents on the flexural properties, fracture toughness, morphology of PLA/PCL blends, and PLA/PCL/SiC composites were investigated using several techniques. Both the fracture toughness and flexural strength of PLA increased by the introduction of PCL and were further improved by the formation of SiC whiskers. Fracture surfaces were observed by scanning electron microscopy, which showed that the use of PCL as a reinforcing agent induces plastic deformation in the PLA/PCL blends. The SiC whiskers absorbed external energy because of their good interfacial adhesion with the PLA matrix and through SiC-PLA debonding in the PLA/PCL/SiC composites.

Effect of Surface-Modified Si-Al-C® Fibre Addition on the Mechanical Properties of Silicon Carbide Composite

2010 ◽  
Vol 71 ◽  
pp. 127-132 ◽  
Author(s):  
H. Moriyasu ◽  
J. Kita ◽  
H. Suemasu ◽  
Ian J. Davies ◽  
S. Koda ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Silicon Carbide ◽  
Specific Surface ◽  
Acid Treatment ◽  
Polar Solvent ◽  
Sintering Aid ◽  
C Fibre ◽  
Surface Modified ◽  
Effect Of Surface

The effect of surface modified Si-Al-C® fibre with carbon interface (SA/C fibre) addition on the densification of silicon carbide (SiC) composite was examined. An acid treatment (H2SO4 and HNO3) was carried out at 50°C for 3 h in order to add COO- group to the surface of SA/C fibre and to enhance the dispersibility of SA/C fibre in the SiC powder due to the mixing operation in the polar solvent. Commercially available ultrafine SiC powder (specific surface area: 47.5 m2∙g-1) was mixed with acid-treated SA/C fibre and sintering aid (4.8 mass% Al4C3 and 1.2 mass% B4C) in the presence of acetone. The relative density of the SiC composite with non-acid-treated SA/C fibre addition hot-pressed at 1800°C for 1 h in Ar atmosphere under a pressure of 62 MPa was 98.4%, whereas that of the SiC composite with acid-treated SA/C fibre addition increased to 98.7%. Furthermore, the fracture toughness increased from 5.6 MPa∙m1/2 to 7.0 MPa∙m1/2 for the acid-treated SA/C fibre addition.

scholarly journals Densification of surface-modified silicon carbide powder by spark-plasma-sintering

2021 ◽  
Author(s):  
Alejandro Montón ◽  
Francis Maury ◽  
Geoffroy Chevallier ◽  
Claude Etournès ◽  
Marc Ferrato ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Spark Plasma Sintering ◽  
Carbide Powder ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Surface Modified ◽  
Silicon Carbide Powder

Preparation and characterization of surface modified silicon carbide/polystyrene nanocomposites

2013 ◽  
Vol 130 (1) ◽  
pp. 638-644 ◽  
Author(s):  
Jian-Ping Cao ◽  
Jun Zhao ◽  
Xiaodong Zhao ◽  
Guo-Hua Hu ◽  
Zhi-Min Dang
Keyword(s):  
Silicon Carbide ◽  
Surface Modified

Improvement of toughness of reaction bonded silicon carbide composites reinforced by surface-modified SiC whiskers

2021 ◽  
Author(s):  
Rong Xue ◽  
Pan Liu ◽  
Zhejian Zhang ◽  
Nanlong Zhang ◽  
Yonghui Zhang ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Sic Whiskers ◽  
Surface Modified
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