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Ln2Mo3O12 (Ln=La, Nd): A novel group of low loss microwave dielectric ceramics with low sintering temperature

2010; Elsevier BV; Volume: 65; Issue: 2 Linguagem: Inglês

10.1016/j.matlet.2010.09.064

1873-4979

Li‐Xia Pang, Guobin Sun, Di Zhou,

Layered Double Hydroxides Synthesis and Applications

Ln2Mo3O12 (Ln = La, Nd) ceramics with a defect scheelite related structure were prepared via a solid state reaction method. The La2Mo3O12 ceramics sintered at 930 °C for 2 h exhibited a low dielectric permittivity of 10.1, a high quality factor (Qf value) of 60,000 GHz and a temperature coefficient of −80 ppm/°C at 12.7 GHz. The Nd2Mo3O12 ceramics sintered at 945 °C for 2 h possessed a dielectric permittivity of 8.2, a Qf value of 80,000 GHz, and a temperature coefficient of −60 ppm/°C at 15.8 GHz. This group of ceramics could be good candidates for microwave substrate applications.