摘要:
An amperometric oxygen sensor for sensing the partial pressure of oxygen is disclosed. The amperometric oxygen sensor having a multilayered body which comprises a plurality of oxygen ion conductor layers interposed between a plurality of oxygen-porous electrode layers. Oxygen from a sample gas enters porous cathode layer of the sensor, through the ion conductor diffuses to anode because of a potential difference, and then an amperometric current is measured, which is proportional to the partial pressure of the oxygen. The amperometric oxygen sensor further comprises a heating member embedded within the sensor body and a heating controller electrically connects with the heating member to heat and maintain the sensor at working temperature, about 500˜800° C. An electrical insulator layer, but not thermal insulator, is blocked between the heating member and the oxygen-porous electrode strips so as to prevent the amperometric current from electromagnetic field interference.
摘要:
A method for preparing a ceramic powder suspension is disclosed. A dispersant having a following structural formula is provided: wherein D is H or COOR1; R1 is a hydrogen atom, or an alkyl group, a cyclic aliphatic group, an aryl group, having 1 to 10 carbon atoms, or a cationic salt group; R2 is an alkyl group having 1 to 10 carbon atoms, a cyclic aliphatic having 1 to 10 carbon atoms or an aryl group having 1 to 10 carbon atoms; R3 is a hydrogen atom or a methyl group; Z is an oxygen atom or an NH group; A is —COO —SO3 or an acid form; a is an integer between 1 to 5000; and p and q are integers between 1 to 10. The dispersant is dissolved in a solvent. Ceramic powder is further added into the solvent with the dispersant.
摘要:
The present invention relates to a low-temperature sintered barium titanate microwave dielectric ceramic material. The host matrix thereof can be represented by BaxTiyMZOX+2y+k, where x is 1˜6, y is 1˜17, z is 0˜1, k is 0˜3, M is an element substituting the Ba or Ti ion, for example selected from an alkali metal, an alkaline-earth metal, a transition group or a rare earth group, and preferably Ba2Ti9O20 or the host matrix containing Zr, Sn, Zn, etc. According to the present invention, a low melting glass is added and a subsequent milling operation is performed to reduce the sintering temperature of the microwave dielectric ceramic material to less than 1,000° C. The low melting glass can be for example the Ba-B-Si-Li glass, Ba-B-Zn-Si-Li glass, Ba-B-Si-Li-Cu glass or Cu-B-Zn-Si-Li glass.
摘要翻译:本发明涉及一种低温烧结钛酸钡微波介电陶瓷材料。 其主体矩阵可以由下式表示:其中Z 1,X 2,X 2,Y 2,..., x为1〜6,y为1〜17,z为0〜1,k为0〜3,M为取代Ba或Ti离子的元素,例如选自碱金属,碱土金属, 过渡组或稀土组,优选为Ba 2 N 2 O 20 O 20或含有Zr,Sn,Zn等的主体基体。 根据本发明,加入低熔点玻璃并进行随后的研磨操作,以将微波介电陶瓷材料的烧结温度降低至小于1000℃。低熔点玻璃可以是例如Ba-B- Si-Li玻璃,Ba-B-Zn-Si-Li玻璃,Ba-B-Si-Li-Cu玻璃或Cu-B-Zn-Si-Li玻璃。
摘要:
A method for manufacturing microchip antenna comprises a dielectric substrate having antennal radiated conductor paths composing of a single-feeding end or multiple-feeding ends and multiple-curved paths; a dielectric substrate having the antennal radiated conductor paths being packaged by the material capable of adjusting easily dielectric constant; and an antennal object including antennal radiated conductor paths, feeding ends, welding spots and packaging materials. The main body of the antenna has multi-folded paths, feeding ends, welding spots, and a packaging body. The radiation wires of the antenna is built on a single or a multiple input ends on a dielectric substrate and is multi-folded wires and it is packaged by another dielectric material. The radiation wires of the antenna can be designed and manufactured in three dimension so as to reduce the area occupied by the antenna and reduce the coupling interference between the elements.
摘要:
A dielectric ceramic material comprises a primary component of barium titanate (BaTiO3) and at least one additive component. The additive component has a mole percentage from 1% to 50% and is selected from the group consisting of lithium tantalite (LiTaO3), barium cerate (BaCeO3), sodium metaniobate (NaNbO3) and the combinations thereof.
摘要:
A dielectric ceramic composition is disclosed. The dielectric ceramic composition of the present invention comprises BaTiO3 as the main component and one or more subcomponents. The one or more subcomponents include Sc2O3, MgCO3, BaSiO3, MnCO3, La2O3, CO3O4 and NiO. An end product of the present invention may be formed after BaTiO3 and the subcomponents undergo the following steps: (1) Wet mixing using a ball mill (2) Sintering in a reducing atmosphere (3) Annealing. The dielectric ceramic composition of the present invention can satisfy the X8R characteristic of the EIA standard and is compact or dense enough.
摘要翻译:公开了一种介电陶瓷组合物。 本发明的电介质陶瓷组合物包含BaTiO 3作为主要成分和一个或多个亚成分。 一个或多个子部件包括Sc 2 O 3,MgCO 3,BaSiO 3,MnCO 3,La 2 O 3,CO 3 O 4和NiO。 本发明的最终产品可以在BaTiO 3之后形成,其次要部分经过以下步骤:(1)使用球磨机湿式混合(2)在还原气氛中烧结(3)退火。 本发明的电介质陶瓷组合物可以满足EIA标准的X8R特性,并且足够紧凑或致密。
摘要:
A bio-implant having a screw body selectively formed with nanoporous channels structure in a spiral groove and the method of making the same are disclosed. Nanoporous channels structure formed into the spiral groove of the bio-implant is carried out by the heat treatment in vacuum firstly and anodic treatment secondly. Thereafter, bioactive material is filled into the nanoporous and deposited on the implant surface by an electro-deposition process so as to increase the bioactivity and biocompatibility of the bio-implant.
摘要:
Method for production of diamond-like carbon film having semiconducting properties comprises preparing a boron-doped diamond-like carbon (B-DLC) thin film on a silicon substrate through a radio frequency magnetron sputtering process, wherein a composite target material formed by inserting boron tablet as a dopant source in a graphite target is used. After forming a boron-containing diamond-like carbon film, the thin film is annealed at a temperature of 500° C. and kept at this temperature for 10 minutes, and determine its carrier concentration and resistivity. Thus demonstrated that the polarity of said boron-doped diamond-like carbon film is p-type semiconductor characteristic. Carrier concentration can be up to 1.3×1018 cm-3, and its resistivity is about 0.6 Ω-cm; consequently. The boron-doped semiconducting diamond-like carbon film having excellent semiconductor property and high temperature stability according to the invention is best applicable in solar cell or electronic communication and electrode elements and equipments.
摘要:
It has been newly determined that in a reaction of an Ag/Pd metallization with Pb from a lead-based ceramics, a maximum solubility of Pb is observed of approximately 14% (atomic percent). By inclusion of an effective amount of Pb in the Ag/Pd metallization, leaching of Pb from a Pb-based ceramic is either reduced or eliminated. Thus, upon firing, the metallization exhibits an equilibration which prevents Pb from being drawn out of the underlying ceramic. Similarly, Ag/Pd metallization shows a maximum solubility of 16 atomic percent for Bi in Bi-based ceramics. Inclusion of an effective amount of Bi in the metallization prevents a Bi leaching from an underlying ceramic.
摘要:
Dispersing agent of MWCNTs and the method for preparation of homogeneous MWCNTs dispersion are disclosed. Acid yellow 9(4-amino-1-1′-azobenzene-3,4′-disulfonic acid, AY) is a good agent for multi-walled carbon nanotubes (MWCNTs). MWCNTs dispersed in AY solution was remained stable about three months and even remained stable after centrifugation at 10000 rpm for 30 min. Using MWCNTs/AY dispersion, thin-films were prepared on indium tin oxide coated glass electrode and glassy carbon electrode. Further, dried firms of MWCNTs/AY were subjected to electropolymerization in 0.1 M H2SO4 solution. Adsorbed AY molecules on MWCNTs get polymerized and then yield a polymer-MWCNTs nanocomposite film on electrode surface so as to modify properties of the electrode.
摘要翻译:公开了MWCNTs的分散剂和制备均相MWCNT分散体的方法。 酸性黄9(4-氨基-1'-偶氮苯-3,4'-二磺酸,AY)是多壁碳纳米管(MWCNT)的良好试剂。 分散在AY溶液中的MWCNT在约3个月内保持稳定,并且甚至在以10000rpm离心30分钟后保持稳定。 使用MWCNTs / AY分散体,在氧化铟锡涂层玻璃电极和玻碳电极上制备薄膜。 此外,干燥的MWCNTs / AY公司在0.1M H 2 SO 4溶液中进行电聚合。 在MWCNT上吸附的AY分子聚合,然后在电极表面上产生聚合物-MCCNTs纳米复合膜,从而改变电极的性质。