A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CAPACITOR
PROBLEM TO BE SOLVED: To provide a capacitor which is high in thermal shock resistance and hard to cause a crack.SOLUTION: A capacitor comprises a capacitor main body 5 including: a capacitance unit 9 which makes contribution to the development of an electrostatic capacitance and which is arranged by alternately laminating ceramic layers 1 and internal electrode layers 3; and a non-capacitance unit 11 which is disposed so as to surround the capacitance unit 9, which has a ceramic unit 11a including the same primary component as the ceramic layers 1, and which does not develop an electrostatic capacitance. The ceramic layer 1 and the ceramic unit 11a include a barium titanium oxide as a primary component, and a rare earth element as a subcomponent. The ceramic unit 11a that the non-capacitance unit 11 includes is lower than the ceramic layer 1 that the capacitance unit 9 includes in the concentration of a rare earth element contained therein. The difference between a porosity of the ceramic layers 1 that the capacitance unit 9 includes, and a porosity of the ceramic unit 11a that the non-capacitance unit 11 includes is 0.54% or less.SELECTED DRAWING: Figure 1
【課題】 耐熱衝撃性が高く、クラックの発生し難いコンデンサを提供する。【解決手段】 セラミック層１と内部電極層３とが交互に複数層積層され、静電容量の発現に寄与する容量部９と、容量部９を取り囲むように配置され、セラミック層１と同じ主成分を含むセラミック部１１ａを有し、静電容量を発現しない非容量部１１とで構成されたコンデンサ本体５を備えており、セラミック層１およびセラミック部１１ａがチタン酸バリウムを主成分とし、副成分として希土類元素を含んでおり、非容量部１１を構成するセラミック部１１ａに含まれる希土類元素の濃度が容量部９を構成するセラミック層１に含まれる希土類元素の濃度よりも低く、容量部９を構成するセラミック層１の気孔率と非容量部１１を構成するセラミック部１１ａの気孔率との差が０．５４％以下である。【選択図】図１
CAPACITOR
PROBLEM TO BE SOLVED: To provide a capacitor which is high in thermal shock resistance and hard to cause a crack.SOLUTION: A capacitor comprises a capacitor main body 5 including: a capacitance unit 9 which makes contribution to the development of an electrostatic capacitance and which is arranged by alternately laminating ceramic layers 1 and internal electrode layers 3; and a non-capacitance unit 11 which is disposed so as to surround the capacitance unit 9, which has a ceramic unit 11a including the same primary component as the ceramic layers 1, and which does not develop an electrostatic capacitance. The ceramic layer 1 and the ceramic unit 11a include a barium titanium oxide as a primary component, and a rare earth element as a subcomponent. The ceramic unit 11a that the non-capacitance unit 11 includes is lower than the ceramic layer 1 that the capacitance unit 9 includes in the concentration of a rare earth element contained therein. The difference between a porosity of the ceramic layers 1 that the capacitance unit 9 includes, and a porosity of the ceramic unit 11a that the non-capacitance unit 11 includes is 0.54% or less.SELECTED DRAWING: Figure 1
【課題】 耐熱衝撃性が高く、クラックの発生し難いコンデンサを提供する。【解決手段】 セラミック層１と内部電極層３とが交互に複数層積層され、静電容量の発現に寄与する容量部９と、容量部９を取り囲むように配置され、セラミック層１と同じ主成分を含むセラミック部１１ａを有し、静電容量を発現しない非容量部１１とで構成されたコンデンサ本体５を備えており、セラミック層１およびセラミック部１１ａがチタン酸バリウムを主成分とし、副成分として希土類元素を含んでおり、非容量部１１を構成するセラミック部１１ａに含まれる希土類元素の濃度が容量部９を構成するセラミック層１に含まれる希土類元素の濃度よりも低く、容量部９を構成するセラミック層１の気孔率と非容量部１１を構成するセラミック部１１ａの気孔率との差が０．５４％以下である。【選択図】図１
CAPACITOR
コンデンサ
UENO JUN (author) / AZUMA YUSUKE (author)
2018-11-22
Patent
Electronic Resource
Japanese