The invention provides a cathode active material for use in a rechargeable battery, comprising a coated lithium nickel oxide powder or a coated lithium nickel manganese oxide powder, the powder being composed of primary particles provided with a glassy lithium silicate surface coating. A method for preparing the cathode active material comprises the steps of: providing a lithium transition metal based oxide powder, providing an alkali mineral compound comprising a Li.sub.2xSiO.sub.30.5x compound, wherein 0<x<2, mixing the lithium transition metal based oxide powder and the alkali mineral compound to form a powder-mineral compound mixture, and heat treating the mixture at a temperature T whereby lithium is extracted from the surface of the metal based oxide powder to react with the alkali mineral compound, and a glassy surface coating is formed comprising a Li.sub.2xSiO.sub.30.5x compound, wherein x<x<2.

Provided are a MnZnWO sputtering target having excellent crack resistance and a production method therefor. The MnZnWO sputtering target has a chemical composition containing Mn, Zn, W, and O. From an X-ray diffraction pattern of the MnZnWO sputtering target, a ratio P.sub.MnO/P.sub.W of a maximum peak intensity P.sub.MnO of a peak due to a manganese oxide composed only of Mn and O to a maximum peak intensity P.sub.W of a peak due to W is 0.027 or less.

A fuel cell comprises a plurality of sub-cells, each sub-cell including a first electrode in fluid communication with a source of oxygen gas, a second electrode in fluid communication with a source of a fuel gas, and a solid electrolyte between the first electrode and the second electrode. The sub-cells are connected with each other with an interconnect. The interconnect includes a first layer in contact with the first electrode of each cell, and a second layer in contact with the second electrode of each cell. The first layer includes a (La,Mn)Sr-titanate based perovskite represented by the empirical formula of La.sub.ySr.sub.(1-y)Ti.sub.(1-x)Mn.sub.xO.sub.b. In one embodiment, the second layer includes a (Nb,Y)Sr-titanate perovskite represented by the empirical formula of Sr.sub.(1-1.5z-0.5k)Y.sub.zNb.sub.kTi.sub.(1-k)O.sub.d. In another embodiment, the interconnect has a thickness of between about 10 m and about 100 m, and the second layer of the interconnect includes a (La)Sr-titanate based perovskite represented by the empirical formula of Sr.sub.(1-z)La.sub.zTiO.sub.d.

The embodiments of the present invention disclose a method for synthesizing ceramic composite powder and ceramic composite powder, pertaining to the technical field of inorganic non-metallic materials. Among them, the method includes preparing an aqueous slurry of ceramic raw materials, the aqueous slurry including ceramic raw material, water and low polymerization degree organometallic copolymer, the ceramic raw material including at least two components; adding a crosslinking coagulant into the aqueous slurry to obtain a gel; dehydrating and drying the gel to obtain the dried gel; heating the dried gel to the synthesizing temperature of the ceramic composite powder and conducting the heat preservation to obtain ceramic composite powder or ceramic composite base powder; conducting secondary doping on ceramic composite base powder to obtain the ceramic composite powder. The multi-component ceramic composite powder prepared by the embodiments of the present invention has uniformly dispersed each component and low synthesizing temperature.

An antimicrobial material including a substrate and an antimicrobial mixed metal oxide, mixed metal sulfide, or mixed metal oxysulfide in and/or on the substrate is described, as well as antimicrobial coating materials and coatings formed therefrom. The antimicrobial material may be constituted in an antimicrobial surface of a surface-presenting substrate, to combat transmission and spread of microbial disease, e.g., disease mediated by microbial pathogens such as bacteria, viruses, and fungi. Antimicrobial mixed metal oxide, mixed metal sulfide, or mixed metal oxysulfide as described may be contacted with microorganisms to effect inactivation thereof.

A ceramic material has a composition represented by Ca.sub.xNa.sub.xMn.sub.yM.sub.yO.sub.12, wherein M denotes at least one of Ni and Cu, and x, x, y, and y satisfy any of (a), (b), and (c) in which x+x=X and y+y=Y:

[00001]$\begin{array}{cc}\frac{0.9}{7.0}\frac{X}{Y}<\frac{1.0}{7.0};& \left(a\right)\end{array}$

at a condition of

[00002]$\begin{array}{cc}\frac{X}{Y}=\frac{1.0}{7.0},\frac{0.03}{8}\frac{x}{X+Y}<\frac{0.30}{8}.Math..Math.\mathrm{and}.Math..Math.0\frac{y}{X+Y}\frac{0.35}{8};\mathrm{and}& \left(b\right)\\ \frac{1.0}{7.0}<\frac{X}{Y}\frac{1.0}{6.9}.& \left(c\right)\end{array}$

A material for a thermoelectric element and a method for producing a material for a thermoelectric element are disclosed. In an embodiment the thermoelectric element includes a material comprising calcium manganese oxide that is partially doped with Fe atoms in positions of Mn atoms.

An antimicrobial material including a substrate and an antimicrobial mixed metal oxide, mixed metal sulfide, or mixed metal oxysulfide in and/or on the substrate is described, as well as antimicrobial coating materials and coatings formed therefrom. The antimicrobial material may be constituted in an antimicrobial surface of a surface-presenting substrate, to combat transmission and spread of microbial disease, e.g., disease mediated by microbial pathogens such as bacteria, viruses, and fungi. Antimicrobial mixed metal oxide, mixed metal sulfide, or mixed metal oxysulfide as described may be contacted with microorganisms to effect inactivation thereof.

The present invention relates to a thermistor paste and a manufacturing method thereof. The thermistor paste includes specific contents of thermistor powder, a glass powder, and an organic carrier, in which the organic carrier includes an organic solvent, a binder, and an additive. A thermistor semi-finished product slurry of the present invention has been sintered. The thermistor paste of the present invention excludes a precious metal, such as ruthenium, gold, or platinum, etc., so the production cost can be reduced.

The invention relates to a composition consisting of a mixture of one or more metal oxides having the formula MxOyUi, in which M is a metal atom selected from among iron, aluminum, titanium, manganese, zinc, copper, zirconium, nickel, and lead, O is an oxygen atom, U is an impurity, and x, y, and i are mole fractions comprised between 0 and 1, with x+y>80%, said composition taking the form of a three-dimensional compacted tablet having an apparent density greater than or equal to 2, an apparent porosity comprised between 3% and 40%, and a diametral breaking strength greater than or equal to 250 kPa.

The invention also relates to a method for manufacturing a compacted tablet comprising one or more metal oxides