Dielectric Properties of Sr$(Mg_{1/3}Mb_{2/3})$$O_3$-Ba$(Mg_{{1/3}Nb_{2/3})$$O_3$ Solid Solution

$Sr(Mg_{1/3}Mb_{2/3})$$O_3$-$Ba(Mg_{{1/3}Nb_{2/3})$$O_3$ 고용체의 유전성

The dielectric properties of complex perovskite compound Sr$(Mg_{1/3}Mb_{2/3})$$O_3$-Ba$(Mg_{{1/3}Nb_{2/3})$$O_3$(BMN) system were investigated as a function of composition and sintering time. In the case of the specimens sintered at $1650^{\circ}C$ for same time, dielectric constant and dielectric loss were increased with increasing the mole ratio of BMN. The maximum temperature coefficient of resonant frequency was found in composition Ba$(Mg_{{1/3}Nb_{2/3})$$O_3$. In the case of the specimens with same composition, dielectric constant and dielectric loss were slightly increased with increasing the sintering time. As the sintering time was increased, the temperature coefficient of resonant frequency for SMN was slightly increased, however, that of BMN and ($Sr_{1/2}Ba_{1/2}$) ($Mg_{1/3}Ta_{2/3}$)$O_3$ was largely depended on sintering time.