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SiC: Si3N4 modificaiton

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ShakeU

Chemical
Joined
Feb 10, 2021
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3
Location
US
I have SiC from two different vendors. One has much lower Si3N4 composition (12% compared to 24%). How will this affect heat resistance and resistance to caustic?
 
Look up the corrosion data of SiN in your specific caustic.
Do either of these have any free Si?

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P.E. Metallurgy, consulting work welcomed
 
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