摘要:
Non-reducing dielectric ceramic compositions comprise solid solutions which are represented by the compositional formula:{(Ba.sub.1-x Ca.sub.x)O}.sub.m .multidot.(Ti.sub.1-y Zr.sub.y)O.sub.2wherein m, x and y have the following values:1.005 .ltoreq. m .ltoreq. 1.030.02 .ltoreq. x .ltoreq. 0.22O
摘要:
A carbon-dioxide-gas absorber includes a main component of composite oxide, the composite oxide including Ti and X that is at least one of Sr and Ba, and the composite oxide having a molar ratio (X/Ti) of about 1.8 to about 2.2. A substance having a perovskite structure and an (X/Ti) of about 0.9 to about 1.1 or at least one selected from green sheets, green sheet wastes, green-sheet-laminate wastes, and precursors of green sheets including the substance is fired with at least one of strontium carbonate and barium carbonate. An apparatus includes a carbon-dioxide-gas-absorbing mechanical unit that allows a carbon-dioxide-gas absorber to absorb a carbon dioxide gas at about 1.0×104 to about 1.0×106 Pa and at about 500° C. to about 900° C.; and a carbon-dioxide-gas-evolving mechanical unit that evolves the absorbed carbon dioxide gas at about 1000 Pa or less and at at least about 750° C.
摘要:
A carbon dioxide absorbent that can absorb carbon dioxide at a temperature lower than that of a conventional Ba2TiO4 absorbent, as well as at a high temperature of at least 700° C., and desorb carbon dioxide at a temperature lower than that of the conventional absorbent is provided. The carbon dioxide absorbent does not expand significantly upon absorption of carbon dioxide, and exhibits high durability. The carbon dioxide absorbent is mainly composed of an oxide that contains Ba, Ca, and Ti, in which the molar ratio of Ca:(Ba+Ca) is 0.25:1 to 0.65:1, and the molar ratio of (Ba+Ca):Ti is 2.2:1 to 4.0:1. It preferably uses a green sheet, waste green sheet, waste green sheet laminate, or green sheet precursor used in a process of manufacturing electronic components can be as at least part of raw materials for making the carbon dioxide absorbent. A carbon dioxide absorption method using the carbon dioxide absorbent is also provided.
摘要:
A reforming apparatus for fuel cells capable of effectively removing carbon dioxide at a high temperature from a reformed gas which is produced by a steam reforming method, and of producing high-purity hydrogen gas with a high hydrogen conversion rate. A reforming apparatus for fuel cells includes a reformer for steam-reforming a raw material to produce hydrogen, and carbon dioxide removing apparatus for removing carbon dioxide gas by absorbing carbon dioxide from a reformed gas, which is produced by steam reforming in the reformer, using a material containing Ba2TiO4 as a main component as a carbon dioxide absorbent. The reforming apparatus for fuel cells may further include a second reformer for steam-reforming again the reformed gas from which carbon dioxide gas has been removed by the carbon dioxide gas removing means. Alternatively, the reformer for steam reforming may enclose the carbon dioxide removing apparatus which uses the carbon dioxide absorbent containing Ba2TiO4 as a main component so that carbon dioxide produced by steam reforming is removed by absorption within the reformer.
摘要翻译:一种用于燃料电池的重整装置,其能够从通过蒸汽重整方法制备的重整气体中有效地除去高温下的二氧化碳,并且生产具有高氢转化率的高纯度氢气。 燃料电池用重整装置包括用于对原料进行蒸汽重整以产生氢的重整器,以及二氧化碳去除装置,其通过在重整器中通过蒸汽重整制备的重整气体中吸收二氧化碳来除去二氧化碳,该装置使用 含有作为二氧化碳吸收剂的主要成分的Ba 2 TiO 4的材料。 用于燃料电池的重整装置还可以包括用于再次蒸发重整二氧化碳气体的二氧化碳气体被二氧化碳气体去除装置除去的重整气体的第二重整器。 或者,用于蒸汽重整的重整器可以包围使用含有Ba 2 TiO 3的二氧化碳吸收剂作为主要成分的二氧化碳去除装置,使得由蒸汽产生的二氧化碳 通过重整器内的吸收除去重整。
摘要:
A thin film of strontium titanate is formed on a substrate by immersing a substrate in an aqueous solution containing strontium ions and titanium alkoxide. The aqueous solution may contain not more than 20 vol % of one or more alkanolamines expressed by the general formula:HO(C.sub.n H.sub.2n).sub.m NH.sub.3-mwith n=not more than 10, and m=1, 2 or 3.
摘要翻译:通过将基板浸渍在含有锶离子和钛醇盐的水溶液中,在基板上形成钛酸锶薄膜。 所述水溶液可以含有不超过20体积%的由通式HO(C n H 2n)m NH 3-m表示的一种或多种烷醇胺,n = 10以下,m = 1,2或3。
摘要:
A distributor which is a component of a solid oxide Fuel cell and works to distribute a fuel gas or air to a fuel gas side electrode or an air side electrode evenly. A base of the distributor is porous, and the porous base is coated with a reinforcing agent and a conductive agent.
摘要:
Disclosed is a solid oxide fuel cell of a laminate structure. A solid electrolyte having a fuel side electrode and an air side electrode on either side and conductive distributors are arranged one upon another so as to form a cell in the shape of a disk. Further, thus made cells are connected via interconnectors so as to form a solid oxide fuel cell of a laminate structure.
摘要:
An auxiliary agent for sintering ceramics comprises a basic composition consisting essentially of (a) 5 to 40 mol % of at least two oxides selected from the group consisting of ZnO, SnO and MnO, the sum of the contents of ZnO and MnO being not less than 5 mol %, (b) 5 to 40 mol % of at least one metal oxide expressed by the general formula: RO where R is at least one element selected from the group consisting of Ba, Sr, Ca and Mg, and (c) 30 to 70 mol % of (Ti, Si)O.sub.2, the content of SiO.sub.2 being not less than 15 mol %. The auxiliary agent may contain at least one additive selected from the group consisting of Al.sub.2 O.sub.3, B.sub.2 O.sub.3, CuO, Nb.sub.2 O.sub.5, Ta.sub.2 O.sub.5, Ga.sub.2 O.sub.3, GeO.sub.2, Y.sub.2 O.sub.3, ZrO.sub.2, WO.sub.3, MoO.sub.2, Fe.sub.2 O.sub.3, CoO, NiO, PbO and Bi.sub.2 O.sub.3. The total content of the additive is not more than 20 parts by weight per 100 parts by weight of the basic composition, and the content of at least one metal oxide selected from the group consisting of Y.sub.2 O.sub.3, ZrO.sub.2, WO.sub.3, MoO.sub.2, Fe.sub.2 O.sub.3, CoO, NiO, PbO and Bi.sub.2 O.sub.3 should be not more than 10 parts by weight per 100 parts by weight of the basic composition. The auxiliary agent may further contain 2 to 45 mol % of Li.sub.2 O. SnO and MnO may be omitted from the basic composition.
摘要翻译:用于烧结陶瓷的辅助剂包括基本上由(a)5至40mol%的选自ZnO,SnO和MnO的至少两种氧化物组成的碱性组合物,ZnO和MnO的含量之和不小于 (b)5-40摩尔%的由通式RO表示的至少一种金属氧化物,其中R是选自Ba,Sr,Ca和Mg中的至少一种元素,和(c )30〜70摩尔%的(Ti,Si)O 2,SiO 2的含量不小于15摩尔%。 辅助剂可以含有选自Al 2 O 3,B 2 O 3,CuO,Nb 2 O 5,Ta 2 O 5,Ga 2 O 3,GeO 2,Y 2 O 3,ZrO 2,WO 3,MoO 2,Fe 2 O 3,CoO,NiO,PbO和Bi 2 O 3中的至少一种添加剂。 添加剂的总含量相对于100重量份的碱性组合物为20重量份以下,并且选自Y 2 O 3,ZrO 2,WO 3,MoO 2,Fe 2 O 3,CoO中的至少一种金属氧化物的含量 ,NiO,PbO和Bi2O3的含量应不超过10重量份/ 100重量份的基本组成。 辅助剂还可以含有2〜45摩尔%的Li 2 O。 SnO和MnO可以从基本组成中省略。
摘要:
A dielectric paste for fabrication of multilayer ceramic substrates containing capacitive circuits. The paste comprises a dielectric powder composed of a dielectric material and a vitreous binder suspended in an organic vehicle. The dielectric material consists essentially of a composition expressed by the general formula:{(Ba.sub.1-x-y-z Sr.sub.x Ca.sub.y Mg.sub.z)O}.sub.m .multidot.(Ti.sub.1-u Zr.sub.u)O.sub.2wherein x, y, z, u and m take values within the following respective ranges: 0.ltoreq.x
摘要翻译:一种用于制造含有电容电路的多层陶瓷基片的电介质浆料。 该糊料包括由介电材料和悬浮在有机载体中的玻璃粘合剂组成的电介质粉末。 电介质材料基本上由以下通式表示的组成:{(Ba1-xy-zSrxCayMgz)O} mx(Ti1-uZru)O2,其中x,y,z,u和m取值在以下各自的范围内:0 = x <0.30,0 = y <0.30,0 z <0.05,0 0.25,1 <1.03,玻璃质粘合剂基本上由以下组成表示: 通式:αLi 2 O xβBaO xγB 2 O 3 x(1-α-β-γ)SiO 2其中α,β和γ是各成分的摩尔比,取值在以下各自的范围内:0 <α<0.25, 0.1 <0.5,0.1 <γ<0.5和0.3 <α+β+γ<0.8。 电介质粉末中的玻璃态粘合剂的含量为5重量%以上且小于40重量%以下。