Abstract:
This invention provides compositions of the formula Na 0.5 M 0.5 Cu 3 Ti 4 O 12 Wherein M = La-Lu, Y, Bi or mixtures thereof. These compositions have high dielectric constant and low loss over a frequency range of from about 1 kHz to about 1 MHz.
Abstract translation:本发明提供了式Na> 0.5Mu 3/3 Ti 4 O 12的组合物,其中M = La-Lu,Y,Bi或其混合物。 这些组合物在约1kHz至约1MHz的频率范围内具有高介电常数和低损耗。
Abstract:
A thin film capacitor (2) comprising, sequentially formed on a substrate (4), a lower electrode (6), a dielectric thin film (8) and an upper electrode (10). The dielectric thin film (8) consists of a thin−film capacity element−use composition that has a bismuth layer−form compound having its c−axis oriented vertically to the substrate surface, and the bismuth layer−form compound is expressed by a composition formula: (Bi 2 O 2 ) 2+ (A m− 1 B m O 3m+1 ) 2− , or Bi 2 A m−1 B m O 3m+3 where a symbol m in the formula is an odd number, symbol A at least one element selected from Na, K, Pb, Ba, Sr, Ca and Bi, and symbol B at least one element selected from Fe, Co, Cr, Ga, Ti, Nb, Ta, Sb, V. Mo and W. The capacitor, even if it is thinned, is comparatively high in permittivity and low in loss, excellent in leak characteristics, improved in withstand voltage, and excellent in temperature characteristics of permittivity and surface smoothness.
Abstract translation:一种薄膜电容器(2),包括依次形成在基板(4),下电极(6),电介质薄膜(8)和上电极(10)上。 电介质薄膜(8)由薄膜电容元件用组合物构成,该组合物具有c轴朝向基板表面垂直取向的铋层状化合物,铋层状化合物由组成 式:(Bi 2 S b O 2 s 2 s 2 s 2)(2)(A sb m-1) sb> O 3m + 1 sb>) 2 - sp>或Bi 2 b> a m-1 b> 其中,式中的符号m为奇数,符号A为选自Na,K,Pb,Ba,Sr,Ca和Bi中的至少一种元素,以及 符号B为选自Fe,Co,Cr,Ga,Ti,Nb,Ta,Sb,V,Mo和W中的至少一种元素。电容器即使变薄,介电常数相对较高,损耗低, 泄漏特性,耐电压提高,介电常数和表面平滑性的温度特性优异。
Abstract:
A thin−film capacitor (2) in which a lower electrode (6), a dielectric thin film (8), and an upper electrode (10) are formed in order on a substrate (4). The dielectric thin film (8) is made of a composition for thin−film capacitive devices. The composition includes a bismuth laminar compound whose c−axis is oriented vertically to the substrate surface and which is expressd by a formula: (Bi 2 O 2 ) 2+ (A m− 1 B m O 3m+1 ) 2− or Bi 2 A m−1 B m O 3m+3 where m is an even number, A is at least one element selected from among Na, K, Pb, Ba, Sr, Ca, and Bi, and B is at least one element selected from among Fe, Co, Cr, Ga, Ti, Nb, Ta, Sb, V, Mo, and W. The temperature characteristics of the dielectric constant are excellent. Even if the dielectric thin film is made more thinner, the dielectric constant is relatively low, and the loss is small. The leak characteristics are excellent, the breakdown voltage is improved, and the surface smoothness is excellent.
Abstract translation:在基板(4)上依次形成下电极(6),电介质薄膜(8)和上电极(10)的薄膜电容器(2)。 电介质薄膜(8)由用于薄膜电容器件的组合物制成。 该组合物包括铋层状化合物,其c轴垂直于衬底表面取向并由下式表示:(Bi 2 S 2 O 2 s 2)2 + sp>(A m-1 sb> B m sb> O sb> 3m + 1 sb>) p> sb> 2 sb> A m-1 sb> B m sb> O 3m + 3 sb>其中m是偶数,A是至少一个 选自Na,K,Pb,Ba,Sr,Ca和Bi中的元素,B是选自Fe,Co,Cr,Ga,Ti,Nb,Ta,Sb,V,Mo和 介电常数的温度特性优异。 即使使电介质薄膜更薄,介电常数也相对较低,损耗小。 泄漏特性优异,击穿电压提高,表面光滑度优异。
Abstract:
A piezoelectric ceramic comprising as the main component a lamellar bismuth compound comprising calcium, bismuth, titanium, and oxygen, the ceramic satisfying the relationships 0.15 = a/c
Abstract translation:一种包含钙,铋,钛和氧的层状铋化合物作为主要成分的压电陶瓷,满足0.15 = a / c <0.25和3.5 =(2a + 3b)/ c <3.88 条件是分别作为主成分的层状铋化合物中的钙,铋和钛的摩尔比分别为a,b和c。
Abstract:
A perovskite compound of the formula, (Na1/2Bi1/2)1-xMx (Ti1-yM'y)O3+/-z, where M is one or more of Ca, Sr, Ba, Pb, Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; and M' is one or more of Zr, Hf, Sn, Ge, Mg, Zn, Al, Sc, Ga, Nb, Mo, Sb, Ta, W, Cr, Mn, Fe, Co and Ni, and 0.01
Abstract:
An oxygen or ozone generating device having a plurality of ceramic composite cells, a resistance heat element, a cathode, an anode, a gas manifold interconnecting a gas output passageway from each of the cells, and a thermal shell in which the ceramic composite cells are stacked or arranged in electrical series and gas parallel surrounded by shock absorbing and insulating materials, respectively. Also provided are an exhaust fan, thermocouple sensors, a power source, a programmable computer controller with user interface, and a container supporting the computer user interface and having passageways for providing air into the device, and an oxygen output for supplying oxygen from the device. Methods for manufacturing the ceramic composite cells are also provided, including a method for manufacturing bismuth baria oxide and bismuth calcia baria oxide for use in the ceramic materials used within the ceramic composite cell.