About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
Presentation Title |
Spark Plasma Sintering (SPS) of Polymer Derived Silicon Oxycarbide (SiOC) |
Author(s) |
Apurba Naskar, Manoj Kumar Mahapatra |
On-Site Speaker (Planned) |
Apurba Naskar |
Abstract Scope |
SiOC emerges as a prospective material for versatile applications, such as catalyst supports, high temperature solar receivers, structural components for nuclear applications. SiOC bulk ceramic is fabricated from commercially available preceramic polymer. The powder is pyrolyzed at 1100°C, and sintered at 1300-1800°C through spark plasma sintering (SPS) technique in argon atmosphere with pressure of 50-60Mpa. The conversion of SiOC to α-SiC and β-SiC and the microstructural evolution as a function of sintering temperature has been examined by deploying various analytical tools such as X-ray diffraction (XRD) and scanning electron microscopy (SEM) attached with energy dispersive spectroscopy (EDS). The results are compared with the findings of other researchers for sintering of SiOC followed by a discussion on the advantages and disadvantages of different processing methods to obtain dense SiOC with controlled microstructure. |