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Polymer-based routes to ceramic oxides take advantage of precursor chemistry and structure to produce materials with a range of pore sizes. Polymer precursor routes to nonoxide ceramics offer products with superior thermal and chemical stability in many cases. Polymethylsilane (PMS), a versatile cross linked Sic precursor, [(MeHSi),(MeSi)y], was synthesized using published procedures to yield fluid precursors with a low (20-40%) degree of cross linking. Unique, highly cross linked (60-70%),doi:10.1557/proc-431-409 fatcat:utawzstqjvfezjofkyxg6phnpm