Dielectric material and multilayer ceramic capacitor including the same
A dielectric material which satisfies X9M characteristics and ensures operations over an extended period of time at 200° C. is provided.
1 . A dielectric material comprising:
x molar parts of Ba, c molar parts of Si, d molar parts of Mg, e molar parts of Mn, f molar parts of V, and g molar parts of rare earth element Re (Re contains at least Y), wherein x=100 (1−a)+b, 0.05<a<0.15, 1.0<b<2.5, 0.5<c<5.0, 1.0<d<4.0, 0.01<e<1.0, 0.01<f<3.0, and 5.0<g<6.0,
wherein the dielectric material further comprises a Ti component,
Cr is included within a range of greater than 0 mole and less than 0.01 moles with respect to 100 moles of Ti.
2 . The dielectric material of claim 1 , wherein
Re further includes one or more elements selected from rare earth elements other than Y.
3 . The dielectric material of claim 2 , wherein
Re includes g1 molar parts of Y and g2 molar parts of one or more elements selected from among the rare earth elements other than Y, and g=g1+g2, g1>4, and g2≥1 are additionally satisfied.
4 . The dielectric material of claim 3 , wherein
the one or more elements selected from among the rare earth elements other than Y are Dy.
5 . The dielectric material of claim 1 , wherein
1.5<c≤2.0 is satisfied.
6 . The dielectric material of claim 1 , wherein
0.05<e≤0.25 is satisfied.
7 . The dielectric material of claim 1 , wherein
0.05<f<0.7 is satisfied.
8 . The dielectric material of claim 1 , further comprising 100*a molar parts of Ca.
9 . A multilayer ceramic capacitor comprising the dielectric material described in claim 1 .
10 . A dielectric material comprising:
81.132 at % to 93.732 at % of Ba, 0.442 at % to 5.154 at % of Si, 0.873 at % to 4.188 at % of Mg, 0.009 at % to 1.069 at % of Mn, 0.009 at % to 3.141 at % of V, and 4.329 at % to 7.361 at % of rare earth element Re, where Re includes at least Y,
wherein the dielectric material further comprises a Ti component, wherein
Cr is included within a range of greater than 0 mole and less than 0.01 moles with respect to 100 moles of Ti.
11 . A multilayer ceramic capacitor comprising the dielectric material described in claim 10 .
12 . A dielectric material comprising:
x molar parts of Ba, c molar parts of Si, d molar parts of Mg, e molar parts of Mn, f molar parts of V, and g molar parts of rare earth element Re (Re contains at least Y), wherein x=100 (1−a)+b, 0.05<a<0.15, 1.0<b<2.5, 0.5<c<5.0, 1.0<d<4.0, e>0.01, f>0.01, and 5.0<g≤6.0,
wherein the dielectric material further comprises a Ti component, wherein
Cr is included within a range of greater than 0 mole and less than 0.01 moles with respect to 100 moles of Ti.
13 . The dielectric material of claim 12 , wherein
Re further includes one or more elements selected from the rare earth elements other than Y.
14 . The dielectric material of claim 13 , wherein
Re includes g1 molar parts of Y and g2 molar parts of one or more elements selected from among the rare earth elements other than Y, and g=g1+g2, g1≥4, and g2≥1 are additionally satisfied.
15 . The dielectric material of claim 14 , wherein
the one or more elements selected from among the rare earth elements other than Y are Dy.
16 . A multilayer ceramic capacitor comprising the dielectric material described in claim 12 .
17 . The dielectric material of claim 12 , further comprising 100*a molar parts of Ca.