Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
LAYERED CERAMIC CAPACITOR
고온부하시의 절연열화내성이 높은 적층 세라믹 콘덴서를 제공한다. 내층용 세라믹층(11)의 조성이 Ba 및 Ti를 포함하는 페로브스카이트형 화합물을 주성분으로 하고, Nb 및 Ta 중 적어도 1종류를 포함하면서 Mn 및 Al을 포함하면서 Mg 및 희토류원소(Y, Gd, Tb, Dy, Ho, Er 중 적어도 1종류)를 임의로 포함하고, Ti의 함유량을 100몰부로 했을 때, (가)Nb 및 Ta의 합계가 0.2~1.5몰부, (나)Mg가 0.2몰부 이하(0몰부를 포함함), (다)Mn이 1.0~3.5몰부, (라)Al이 1.0~4.0몰부, (마)희토류원소가 0.05몰부 이하(0몰부를 포함함) 포함한다. 또한, 내층용 세라믹층(11)의 한층당의 평균 입자수가 3개 이하이다.
A multilayer ceramic capacitor that is highly resistant to insulation degradation under high-temperature load includes an inner ceramic layer that has a composition mainly composed of a perovskite-type compound containing Ba and Ti, at least one of Nb and Ta, contains Mn and Al, and optionally contains Mg and a rare-earth element that is at least one of Y, Gd, Tb, Dy, Ho, and Er, with a content of Ti being 100 parts by mole, and (a) a total of Nb and Ta is from about 0.2 to about 1.5 part by mole, (b) Mg is not more than about 0.2 part by mole including 0 part by mole, (c) Mn is from about 1.0 to about 3.5 parts by mole, (d) Al is from about 1.0 to about 4.0 parts by mole, and (e) the rare-earth element is not more than about 0.05 part by mole including 0 part by mole. Furthermore, an average number of particles per one layer of the inner ceramic layer is not more than 3.
LAYERED CERAMIC CAPACITOR
고온부하시의 절연열화내성이 높은 적층 세라믹 콘덴서를 제공한다. 내층용 세라믹층(11)의 조성이 Ba 및 Ti를 포함하는 페로브스카이트형 화합물을 주성분으로 하고, Nb 및 Ta 중 적어도 1종류를 포함하면서 Mn 및 Al을 포함하면서 Mg 및 희토류원소(Y, Gd, Tb, Dy, Ho, Er 중 적어도 1종류)를 임의로 포함하고, Ti의 함유량을 100몰부로 했을 때, (가)Nb 및 Ta의 합계가 0.2~1.5몰부, (나)Mg가 0.2몰부 이하(0몰부를 포함함), (다)Mn이 1.0~3.5몰부, (라)Al이 1.0~4.0몰부, (마)희토류원소가 0.05몰부 이하(0몰부를 포함함) 포함한다. 또한, 내층용 세라믹층(11)의 한층당의 평균 입자수가 3개 이하이다.
A multilayer ceramic capacitor that is highly resistant to insulation degradation under high-temperature load includes an inner ceramic layer that has a composition mainly composed of a perovskite-type compound containing Ba and Ti, at least one of Nb and Ta, contains Mn and Al, and optionally contains Mg and a rare-earth element that is at least one of Y, Gd, Tb, Dy, Ho, and Er, with a content of Ti being 100 parts by mole, and (a) a total of Nb and Ta is from about 0.2 to about 1.5 part by mole, (b) Mg is not more than about 0.2 part by mole including 0 part by mole, (c) Mn is from about 1.0 to about 3.5 parts by mole, (d) Al is from about 1.0 to about 4.0 parts by mole, and (e) the rare-earth element is not more than about 0.05 part by mole including 0 part by mole. Furthermore, an average number of particles per one layer of the inner ceramic layer is not more than 3.