Densification Study of SiC:Al2O3:Y2O3 with Polymer Additions
2005 ◽
Vol 498-499
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pp. 494-499
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Keyword(s):
X Ray
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The influence of polymer precursor additions on liquid phase sintering of SiC:Al2O3:Y2O3 has been evaluated. Two polymer precursors were used: polymethylhydrogensiloxane and D4Vi (1,3,5,7-tetramethyl-1,3,5,7-tetraviniylcyclotetrasiloxane). The ceramic phase had the following composition in wt%: 91.6 SiC, 4.2 Al2O3 and 4.2 Y2O3. The composites were prepared using the following ceramic phase to polymer ratios in wt%: 82.7: 17.3; 74.0: 26.0 and 71.5: 28.5. Density measurements were carried out using a helium picnometry and the Archimedes method. The crystalline phases were identified by X-ray diffraction analysis and the microstructures were observed by optical and scanning electron microscopy.
2007 ◽
Vol 353-358
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pp. 1477-1480
1984 ◽
Vol 42
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pp. 288-289
1992 ◽
Vol 50
(2)
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pp. 1322-1323
2018 ◽
Vol 21
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pp. 495-500
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2012 ◽
Vol 174-177
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pp. 508-511