| 摘要 |
A glass-free microwave dielectric ceramic that can be sintered at low temperature is provided. The glass-free microwave dielectric ceramic composition includes (M1-x2+M′x2+)N4+B2O6 (wherein M and M′are different each other, each being one among Ba, Ca and Sr; N is one among Sn, Zr and Ti; and 0<x<1), M2+(N1-y4+N′y4+)B2O6 (wherein M is one among Ba, Ca and Sr; N and N′are different from each other, each being one among Sn, Zr and Ti; and 0<y<l), or (M1-x2+M′x2+)(N1-y4+)B2O6 (wherein M and M′are different from each other, each being one among Ba, Ca and Sr; N and N′are different from each other, each being one among Sn, Zr and Ti; 0<x<1; and 0<y<l). In addition, the glass-free microwave dielectric ceramic composition may further includes approximately 1 wt % to approximately 7 wt % of a sintering aid represented by a formula, 0.12CuO+0.88Bi2O3. As such, the glass-free microwave dielectric ceramic composition may be sintered at a low temperature at lowest 875� C. |
