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A novel processing route for producing microcellular cordierite ceramics has been developed. The proposed strategy for making the microcellular cordierite ceramics involves three steps: (i) fabricating ceramic-filled preceramic foams by heating a mixture of polysiloxane, expandable microspheres, talc, and alumina in a mold, (ii) cross-linking the foamed body, and (iii) transforming the body into microcellular...
A simple pressing process using a polysiloxane and expanded microspheres for fabricating closed-cell microcellular ceramics is demonstrated. The strategy for making the microcellular ceramics involves: (i) forming preceramic foams using a mixture of preceramic polymer and expanded microspheres by pressing, (ii) cross-linking the formed body, and (iii) transforming the body into microcellular ceramics...
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