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公开(公告)号:US20160264474A1
公开(公告)日:2016-09-15
申请号:US15064436
申请日:2016-03-08
Applicant: TDK CORPORATION
Inventor: Toshihiko KANEKO , Tatsuya FUJINO , Takeru YOSHIDA , Haruki EBINA , Nobuto MORIGASAKI
IPC: C04B35/468 , H01G4/12
CPC classification number: C04B35/4682 , C04B35/465 , C04B35/47 , C04B35/488 , C04B35/49 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3236 , C04B2235/3239 , C04B2235/3248 , C04B2235/3249 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3418 , C04B2235/5454 , C04B2235/6025 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/6584 , C04B2235/6588 , C04B2235/768 , C04B2235/79 , C04B2237/68 , H01G4/1209 , H01G4/1227 , H01G4/1236 , H01G4/1245 , H01G4/30
Abstract: A dielectric ceramic composition and a ceramic electric device having a dielectric layer composed of the dielectric ceramic composition including a main component having a perovskite crystal structure expressed by general formula ABO3, an oxide of Eu, an oxide of Ra (Sc, Er, Tm, Yb and Lu), an oxide of Rb (Y, Dy, Ho, Tb and Gd) and an oxide of Si, in which 0.075≦α≦0.5, 0.5≦β≦3, 1.0≦γ≦4, 1.5≦δ≦5, and 0.030≦α/δ≦0.250 where a content of an oxide of Eu is α mole, a content of the oxide of Ra is β mole, a content of the oxide of Rb is γ mole, and a content of the second sub-component is δ mole with respect to 100 moles of the main component.
Abstract translation: 一种电介质陶瓷组合物和陶瓷电气装置,具有由介电陶瓷组合物构成的电介质层,该电介质陶瓷组合物包括具有由通式ABO 3表示的钙钛矿晶体结构的主要成分,Eu的氧化物,Ra(Sc,Er,Tm, Yb和Lu),Rb(Y,Dy,Ho,Tb和Gd)的氧化物和Si的氧化物,其中0.075≤α≤0.5,0.5≤β≤3,1.0≤γ≤4,1.5≤δ≤ 5和0.030≤α/δ≤0.250其中Eu的氧化物的含量为α摩尔,Ra的氧化物的含量为β摩尔,Rb的氧化物的含量为γ摩尔,第二 亚成分相对于100摩尔的主成分为δ摩尔。