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Phase compositions, densification, microstructures, thermal conductivities, and mechanical properties of sintered reaction-bonded Si3N4 (SRBSN) and sintered Si3N4 (SSN) using the same additives and procedure were compared. The present results showed that the density of SRBSN with MgO-Y2O3 additives was much lower than that of SSN with the same additives. The Eu2O3-MgO-Y2O3 additives inhibited the...
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