Dielectric ceramic composition and electronic device
View Patent ↗Dielectric ceramic composition comprising a compound shown by a general formula {A 1-x (RE) 2x/3 } y -B 2 O 5+y and has a tungsten bronze-type structure. In the formula, “A” is at least one selected from a group comprising Ba, Ca, Sr and Mg, “B” is at least one selected from Nb and Ta, “RE” is at least one selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and said “x” and “y” satisfies 0<x<1 and y<1.000, respectively. The dielectric ceramic composition further comprises an oxide of at least one selected from V, Mo, Fe, W, Mn and Cr.
1. A dielectric ceramic composition comprising a compound shown by a general formula {A 1-x (RE) 2x/3 } y -B 2 O 5+y having tungsten bronze-type structure,
wherein “A” is at least one selected from Ba, Ca, Sr and Mg, “B” is at least one selected from Nb and Ta, “RE” is at least one selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and “x” and “y” satisfies 0<x<1 and 0.700<y<1.000, respectively.
2. The dielectric ceramic composition as set forth in claim 1 further comprising an oxide of at least one selected from V, Mo, Fe, W, Mn and Cr.
3. An electronic device comprising a dielectric layer constituting dielectric ceramic composition as set forth in claim 1 and an internal electrode mainly composed of a base metal.
4. An electronic device comprising a dielectric layer constituting dielectric ceramic composition as set forth in claim 2 and an internal electrode mainly composed of a base metal.