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A platform for research: civil engineering, architecture and urbanism
DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR
PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition having good characteristics under high electric field intensity, especially, IR characteristics and good high temperature load life.SOLUTION: A dielectric ceramic composition contains a main component made of a composition formula (BaSrCa)(TiZr)O(all of m, x, y and z represent molar ratios, and satisfy 0.94≤m≤1.1, 0≤x≤0.2, 0≤y≤0.2 and 0.06≤z<0.2, respectively), a first auxiliary component made of an oxide of a rare earth element R, a second auxiliary component made of an oxide of Mg, a third auxiliary component made of an oxide of at least one element M selected from Mn, Cr, Co and Fe, and a fourth auxiliary component as a sintering aid, where a content R of the first auxiliary component in terms of the oxide is 8-20 mol, a content M of the second auxiliary component in terms of the oxide is 3-15 mol and a content N of the third auxiliary component in terms of the oxide is 0.6-2.0 mol, with respect to 100 mol of the main component, and the dielectric ceramic composition satisfies an expression of 1.0≤R/(M+N)≤2.4.SELECTED DRAWING: Figure 1
【課題】高い電界強度下においても良好な特性、特にＩＲ特性および高温負荷寿命の良好な誘電体磁器組成物の提供。【解決手段】組成式（Ｂａ１−ｘ−ｙＳｒｘＣａｙ）ｍ（Ｔｉ１−ＺＺｒＺ）Ｏ３（ｍ、ｘ、ｙ、ｚは全てモル比を示し、０．９４≦ｍ≦１．１、０≦ｘ≦０．２、０≦ｙ≦０．２、０．０６≦ｚ＜０．２をそれぞれ満たす）からなる主成分と、希土類元素Ｒの酸化物からなる第１副成分と、Ｍｇの酸化物からなる第２副成分と、Ｍｎ、Ｃｒ、ＣｏおよびＦｅから選択される少なくとも１種の元素Ｍの酸化物からなる第３副成分と、焼結助剤としての第４副成分とを含み、前記主成分１００モルに対する、第１副成分の酸化物換算の含有量Ｒが８〜２０モル、第２副成分の酸化物換算の含有量Ｍが３〜１５モル、第３副成分の酸化物換算の含有量Ｎが０．６〜２．０モルであり、１．０≦Ｒ／（Ｍ＋Ｎ）≦２．４である誘電体磁器組成物。【選択図】図１
DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR
PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition having good characteristics under high electric field intensity, especially, IR characteristics and good high temperature load life.SOLUTION: A dielectric ceramic composition contains a main component made of a composition formula (BaSrCa)(TiZr)O(all of m, x, y and z represent molar ratios, and satisfy 0.94≤m≤1.1, 0≤x≤0.2, 0≤y≤0.2 and 0.06≤z<0.2, respectively), a first auxiliary component made of an oxide of a rare earth element R, a second auxiliary component made of an oxide of Mg, a third auxiliary component made of an oxide of at least one element M selected from Mn, Cr, Co and Fe, and a fourth auxiliary component as a sintering aid, where a content R of the first auxiliary component in terms of the oxide is 8-20 mol, a content M of the second auxiliary component in terms of the oxide is 3-15 mol and a content N of the third auxiliary component in terms of the oxide is 0.6-2.0 mol, with respect to 100 mol of the main component, and the dielectric ceramic composition satisfies an expression of 1.0≤R/(M+N)≤2.4.SELECTED DRAWING: Figure 1
【課題】高い電界強度下においても良好な特性、特にＩＲ特性および高温負荷寿命の良好な誘電体磁器組成物の提供。【解決手段】組成式（Ｂａ１−ｘ−ｙＳｒｘＣａｙ）ｍ（Ｔｉ１−ＺＺｒＺ）Ｏ３（ｍ、ｘ、ｙ、ｚは全てモル比を示し、０．９４≦ｍ≦１．１、０≦ｘ≦０．２、０≦ｙ≦０．２、０．０６≦ｚ＜０．２をそれぞれ満たす）からなる主成分と、希土類元素Ｒの酸化物からなる第１副成分と、Ｍｇの酸化物からなる第２副成分と、Ｍｎ、Ｃｒ、ＣｏおよびＦｅから選択される少なくとも１種の元素Ｍの酸化物からなる第３副成分と、焼結助剤としての第４副成分とを含み、前記主成分１００モルに対する、第１副成分の酸化物換算の含有量Ｒが８〜２０モル、第２副成分の酸化物換算の含有量Ｍが３〜１５モル、第３副成分の酸化物換算の含有量Ｎが０．６〜２．０モルであり、１．０≦Ｒ／（Ｍ＋Ｎ）≦２．４である誘電体磁器組成物。【選択図】図１
DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR
誘電体磁器組成物および積層セラミックコンデンサ
SAKURAI DAN (author) / MORIGASAKI NOBUTO (author) / ISHII TATSUYA (author) / ARIIZUMI TAKUMA (author)
2017-10-05
Patent
Electronic Resource
Japanese
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