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The combination of metal oxides Bi2O3:Li2O in a ratio 89:11 gives a eutectic with a melting point of ∼680°C. Such a low melting point oxide combination creates a working liquid phase at a highly favorable temperature for use as a densification aid. A liquid—phase sintering aid incorporating Bi2O3 and Li2O is presented which demonstrates not only a reduction in the required sintering temperature but...
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