Microwave dielectric properties of low firing scheelite-related (Na0.5La0.5)MoO4 ceramic

• (Na0.5La0.5)MoO4 ceramic was prepared via solid state reaction method.
• (Na0.5La0.5)MoO4 ceramic sintered at 740 oC showed good microwave dielectric properties with permittivity 11.0 and quality factor (Qf) of 25,050 GHz.
• (Na0.5La0.5)MoO4 ceramic can be well densified at 740 °C and it is chemically compatible with Ag.

In this paper, the (Na0.5La0.5)MoO4 ceramic with a scheelite structure was prepared via a solid state reaction method and its microwave dielectric properties were reported for the first time. The (Na0.5La0.5)MoO4 ceramic sintered at 740 °C for 2 h possessed a low dielectric permittivity of 11.0, a quality factor (Qf value) of 25,050 GHz and a temperature coefficient of −59 ppm/oC at 8.83 GHz. The (Na0.5La0.5)MoO4 ceramic is chemically compatible with Ag electrode material at its sintering temperature. It can be a promising microwave dielectric material for low-temperature co-fired ceramics technology (LTCC).