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Low temperature ceramic processing

Low temperature ceramic processing

Low temperature ceramic processing

(OP)
Hello All,

Is there any low temperature processing technique by which one can fabricate ceramic with high mechanical strength? For example I have alumino-silicate crystals with avg. crytsal size of 300 nm, shaped to green body and the limit of temperature for processing is 900 °C.

I am trying to use amorphous silica with 40 nm particle size and then sintered it to 900 °C but results are not good. Does someone know what is melting point curve of silica/alumina with particle diameter?

Thanks

RE: Low temperature ceramic processing

how high is high? Geopolymers can be constructed with "high " strength at temperatures below 100 C. May need to add fibers for notch toughness . Reports are that China is using Geopolymers for the ablative coating of their space shuttle.

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RE: Low temperature ceramic processing

(OP)
sintering temperature can go up to maximum 900 °C. and the temperature for normal operating use is 500 °C maximum!

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