Microwave Dielectric Properties of (Li0.5Ln0.5)MoO4 (Ln = Nd, Er, Gd, Y, Yb, Sm, and Ce) Ceramics.

In the present work, a series of scheelite-related ( Li_0.5 Ln_0.5) MoO₄ ( Ln = Nd, Er, Gd, Y, Yb, Sm, and Ce) ceramics were prepared by using the solid-state reaction method. Except for the ( Li_0.5 Yb_0.5) MoO₄, the other compositions were found to have a scheelite structure. Among all the compositions, the ( Li_0.5 Sm_0.5) MoO₄, ( Li_0.5 Nd_0.5) MoO₄, and ( Li_0.5 Ce_0.5) MoO₄ ceramics were found to possess low sintering temperatures below melting point of aluminum (660°C) and be chemically compatible with Al. The relation between microwave dielectric properties and structure was analyzed by using the Shannon additive rule and bond-valence theory. This series of microwave dielectric ceramics might be candidate for low temperature co-fired ceramics technology. [ABSTRACT FROM AUTHOR]