摘要:
The present invention provides a dielectric ceramic obtainable from a composition consisting of: barium titanate containing 0.02% by weight or less of alkali metal oxides, at least one kind of the compound selected from europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide and ytterbium oxide, barium zirconate and manganese oxide, an essential component represented by the following composition formula: (BaO) m TiO 2 + αR 2 O 3 + βBaZrO 3 + γMnO, wherein R 2 O 3 represents at least one kind of compound selected from Eu 2 O 3 , Gd 2 O 3 , Tb 2 O 3 , Dy 2 O 3 , Ho 2 O 3 , Er 2 O 3 , Tm 2 O 3 and Yb 2 O 3 , and α, β and γ representing mole ratios are in the range of 0.001 ≤ α ≤ 0.06, 0.005 ≤ β ≤ 0.06 and 0.001
摘要翻译:本发明提供一种电介质陶瓷,其由以下组成的组合物制成,所述组合物包含:含有0.02重量%以下的碱金属氧化物的钛酸钡,选自氧化铕,氧化钆,氧化铽,氧化镝,钬中的至少一种 氧化物,氧化铒,氧化铌和氧化镱,锆酸钡和氧化锰,由以下组成式表示的必要成分:(BaO)m TiO 2 +±R 2 O 3 + B 2 Zr 3 + MnO,其中R 2 O 3 表示选自Eu 2 O 3,Gd 2 O 3,Tb 2 O 3,Dy 2 O 3,Ho 2 O 3,Er 2 O 3,Tm 2 O 3和Yb 2 O 3中的至少一种化合物,以及 ±,²和³表示摩尔比在0.001‰¤‰‰0.06,0.005‰¤‰‰0.06和0.001³‰0.13,范围为1.000‰‰1.025。
摘要:
A dielectric ceramic composition comprising (1) 100 parts by weight of a main component represented by compositional formula: {BaO} m ·TiO 2 +αRe 2 O 3 +βMnO wherein Re 2 O 3 is at least one of Eu 2 O 3 , Gd 2 O 3 , Tb 2 O 3 , Dy 2 O 3 , Ho 2 O 3 , Er 2 O 3 , Tm 2 O 3 , and Yb 2 O 3 ; 0.0005≤α≤0.027; 0.002≤β≤0.054; β/α≤5; and 1.000 2 -TiO 2 -M 1 -based oxide component (wherein M 1 is at least one of BaO, CaO, SrO, MgO, ZnO, and MnO) or an Li 2 O-(Si,Ti)O 2 -M 2 -based oxide component (wherein M 2 is at least one of Al 2 O 3 and ZrO 2 ) and a monolithic ceramic capacitor using the composition are disclosed. The monolithic ceramic capacitor has a dielectric constant of 3000 or higher and a CR product of 6000 MΩ·µF or more at room temperature or 2000 MΩ·µF or more at 125°C, excellent weathering performance in loading in high temperature or high humidity, and excellent dielectric strength and satisfies the B characteristics specified by JIS (Japanese Industrial Standards) and the X7R characteristics specified by EIA.
摘要:
The present invention provides a dielectric ceramic obtainable from a composition consisting of: barium titanate containing 0.02% by weight or less of alkali metal oxides, at least one kind of the compound selected from europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide and ytterbium oxide, barium zirconate and manganese oxide, an essential component represented by the following composition formula: (BaO) m TiO 2 + αR 2 O 3 + βBaZrO 3 + γMnO, wherein R 2 O 3 represents at least one kind of compound selected from Eu 2 O 3 , Gd 2 O 3 , Tb 2 O 3 , Dy 2 O 3 , Ho 2 O 3 , Er 2 O 3 , Tm 2 O 3 and Yb 2 O 3 , and α, β and γ representing mole ratios are in the range of 0.001 ≤ α ≤ 0.06, 0.005 ≤ β ≤ 0.06 and 0.001
摘要:
A dielectric ceramic composition comprising (1) 100 parts by weight of a main component represented by compositional formula:
{BaO} m ·TiO 2 +αRe 2 O 3 +βMnO
wherein Re 2 O 3 is at least one of Eu 2 O 3 , Gd 2 O 3 , Tb 2 O 3 , Dy 2 O 3 , Ho 2 O 3 , Er 2 O 3 , Tm 2 O 3 , and Yb 2 O 3 ; 0.0005≤α≤0.027; 0.002≤β≤0.054; β/α≤5; and 1.000 an Li 2 O-(Si,Ti)O 2 -M 2 -based oxide component (wherein M 2 is at least one of Al 2 O 3 and ZrO 2 ) and a monolithic ceramic capacitor using the composition are disclosed. The monolithic ceramic capacitor has a dielectric constant of 3000 or higher and a CR product of 6000 MΩ·µF or more at room temperature or 2000 MΩ·µF or more at 125°C, excellent weathering performance in loading in high temperature or high humidity, and excellent dielectric strength and satisfies the B characteristics specified by JIS (Japanese Industrial Standards) and the X7R characteristics specified by EIA.
摘要翻译:一种电介质陶瓷组合物,其包括(1)100重量份由组成式表示的主要组分:BaBOOm.TiO 2 +αRe 2 O 3 +βMnO,其中Re 2 O 3是Eu 2 O 3,Gd 2 O 3,Tb 2 O 3,Dy 2 O 3,Ho 2 O 3,Er 2 O 3,Tm 2 O 3和 Yb2O3中; 0.0005≤α≤0.027; 0.002≤β≤0.054; β/α≤5; 和1.000
摘要:
A magnetostatic wave device comprises a magnetic garnet film epitaxially grown on a Gd₃Ga₂(GaO₄)₃ substrate. The film is of a composition of a system (Y,Gd)₃Fe₅O₁₂ and has the lattice constant substantially equal to that of the substrate, the difference in lattice constant between the substrate and film being not more than 0.01 Å. The composition may be modified with a small amount of at least one element selected from the group consisting of Bi, Ga and Al.
摘要翻译:静磁波器件包括在Gd3Ga2(GaO4)3衬底上外延生长的磁性石榴石膜。 该膜是系统(Y,Gd)3Fe 5 O 12的组成,其晶格常数基本上等于衬底的晶格常数,衬底和膜之间的晶格常数差不超过0.01安培。 该组合物可以用少量选自Bi,Ga和Al中的至少一种元素进行改性。
摘要:
A nonreducing dielectric ceramic has a perovskite structure represented by the formula ABO 3 with a principal crystal phase comprising barium titanate as a principal constituent. The crystal axis ratio c/a determined by an X-ray diffraction method at a temperature of -25°C or more satisfies the relationship 1.000 ≤ c/a ≤ 1.003. Preferably, the nonreducing dielectric ceramic has a phase transition point of less than -25°C. Preferably, the nonreducing dielectric ceramic contains at least one rare-earth element. A monolithic ceramic capacitor including dielectric ceramic layers composed of a nonreducing dielectric ceramic in accordance with the present invention is also disclosed.