Substitution of pure Y2O3 by a mixed concentrate of rare earth oxides (CRE2O3) as sintering additive of Si3N4: a comparative study of the mechanical properties
作者： C Santos , S Ribeiro , K Strecker , C.R.M da Silva
DOI: 10.1016/S0924-0136(03)00807-0
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摘要: Abstract In this work the substitution of pure yttrium oxide (Y2O3) by a mixed concentrate and rare earth oxides (CRE2O3), produced at FAENQUIL-DEMAR, as sinter additive in gas-pressure sintered Si3N4 ceramics has been investigated. CRE2O3 presented similar behavior compared to Y2O3 relation sinterability, intergranular phases formed, microstructure mechanical properties. As alternative is obtained cost only 20% than that commercial Y2O3, demonstrated great potential sintering ceramics.
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