Abstract:
The present invention relates to the use of chemically stable solid ion conductors having a garnet-like structure in batteries, accumulators, electrochromic devices and other electrochemical cells, and also novel compounds which are suitable for these uses.
Abstract:
Disclosed is a substrate material for an AlTiC-based magnetic head, which is excellent in ultra-low flying-related properties as a material for a magnetic head, such as a TPC or AAB type for use as a thin-film magnetic head slider for HDD devices and a thin-film magnetic head for tape recording devices, where a flying height between a magnetic head element and a recording medium is extremely reduced, and usable in perpendicular recording heads, HAMR heads or the like. The magnetic head substrate material consists of a sintered body which contains 10 to 50 mass % of TiCxOyNz (wherein: 0.70≦x
Abstract translation:公开了一种用于基于AlTiC的磁头的基板材料,其作为用于磁头的材料的超低飞行相关性能优异,例如用作薄膜磁头滑块的TPC或AAB型 HDD装置和用于磁带记录装置的薄膜磁头,其中磁头元件和记录介质之间的飞行高度极大地减小,并且可用于垂直记录头,HAMR头等。 磁头基板材料由含有10〜50质量%的TiC x O y N z的烧结体组成,其中:0.70≤n1E; x <1.0; 0
Abstract:
A thermoelectric conversion material, a method for producing the same, and a thermoelectric conversion device are provided. The thermoelectric conversion material includes an oxide represented by formula (1): M1Oy (1), where M1 is at least one selected from the group consisting of V, Nb and Ta, and 1.90≦y≦2.10 or an oxide represented by formula (2): M11−xM2xOy (2), where M1 and y are as in formula (1), M2 is selected from the group consisting of Ti, Cr, Mn, Fe, Co, Zr, Hf, Mo and W, and 0≦x≦0.5.
Abstract:
An alkali niobate-based piezoelectric/electrostrictive ceramics sintered body including, as a main crystal phase, a perovskite type oxide containing at least one type of element selected from the group consisting of Li, Na and K as A site constituent elements and at least one type of element selected from the group consisting of Nb and Ta as B site constituent elements. The number of lattice-strained layers of the piezoelectric/electrostrictive ceramics sintered body is preferably small. A diffuse scattering intensity ratio, which is a ratio of an intensity of diffuse scattering by a lattice-strained layer present near a domain wall to a sum of an X-ray diffraction intensity of a first lattice plane and that of a second lattice plane different in interplanar spacing from the first lattice plane due to crystallographic symmetry reduction is preferably 0.5 or lower.
Abstract:
An oxygen excess type metal oxide expressed with the following formula (1) and exhibiting high speed reversible oxygen diffusibility whereby a large amount of excess oxygen is diffused at a high speed and reversibly in a low temperature region: AjBkCmDnO7+δ (1) where A: one or more trivalent rare earth ions and Ca B: one or more alkaline earth metals C, D: one or more oxygen tetra-coordinated cations among which at least one is a transition metal, where j>0, k>0, and, independently, m≧0, n≧0, and j+k+m+n=6, and 0
Abstract translation:由下式(1)表示的氧过剩型金属氧化物,表现出高速可逆氧扩散性,其中大量的过量氧在低温区域以高速可逆地扩散; =“在线公式”end =“lead”?> AjBkCmDnO7 + delta(1)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中A:一个或多个三价稀有 地球离子和Ca B:一种或多种碱土金属C,D:一种或多种氧四配位阳离子,其中至少一种是过渡金属,其中j> 0,k> 0,并且独立地m = 0,n> = 0,j + k + m + n = 6,0 <δ<= 1.5。
Abstract:
After synthesizing particles by liquid phase synthesis, the solution is substituted without drying these particles, and here, a solution comprising a grain boundary phase composition consisting of at least one or more types selected from a group consisting of Al2O3, yttrium oxide, silicon oxide, yttrium-silicon complex oxide, aluminum-silicon complex oxide, and a compound having a garnet structure with a lower melting point than the aforementioned particles, or a solution comprising a precipitate is introduced. Microparticles are adjusted by allowing adhesion and growth of the solution comprising a composition of grain boundary phase or the solution comprising a precipitate on the surface of the particles; these microparticles are allowed to align in 3-dimensions in solution and are formed into a molded body, and this molded body is sintered.
Abstract:
There are provided an intermetallic-compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and beryllium (Be) and has a chemical composition expressed by formula: Mg1Be2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 35 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 35 K and being low in specific resistance for normal conduction at a temperature ranging from the superconducting transition temperature to a room temperature. In the method of manufacture, a Mg containing feedstock powder and a Be containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.
Abstract:
To provide precursor compositions for forming ferroelectric, methods for manufacturing precursor compositions, and methods for forming ferroelectric films using precursor compositions, which have excellent composition controllability in a liquid phase method, and in which metal compositions such as lead can be reused. A precursor composition pertains to a precursor composition including a precursor for forming a ferroelectric, wherein the ferroelectric is expressed by a general formula of AB1-xCxO3, where an element A is composed of at least Pb, an element B is composed of at least one of Zr, Ti, V, W and Hf, an element C is composed of at least one of Nb and Ta, and the precursor includes at least the element B and the element C, and has an ester-bond in a part thereof.
Abstract:
Disclosed is a highly-pure fine titanium carbide powder having a maximum particle size of 100 nm or less and containing metals except titanium in an amount of 0.05 wt % or less and free carbon in an amount of 0.5 wt % or less. The powder has a NaCl-type crystal structure, and a composition represented by TiCxOyNz, wherein X, Y and Z satisfy the relations: 0.5≦X≦1.0; 0≦Y≦0.3; 0≦Z≦0.2; and 0.5≦X+Y+Z≦1.0.) The powder is produced by: dissolving an organic substance serving as a carbon source in a solvent to prepare a liquid, wherein the organic substance contains at least one OH or COOH group which is a functional group coordinatable to titanium of titanium alkoxide, and no element except C, H, N and O; mixing titanium alkoxide with the liquid to satisfy the following relation: 0.7≦α≦1.0 (wherein α is a molar ratio of the carbon source to the titanium alkoxide), so as to obtain a precursor solution; and subjecting a product in the precursor solution to a heat treatment in a non-oxidizing atmosphere or a vacuum atmosphere at a temperature of 1050 to 1500° C. The present invention can provide fine titanium carbide powders with nano-scale particle sizes, which are free of inorganic impurities, such as titanium oxide and metal, low in free carbon, and effective in enhancing characteristics of a titanium carbide-ceramics composite sintered body.
Abstract translation:公开了最大粒度为100nm以下的高纯度的细小碳化钛粉末,其含有0.05重量%以下的钛以外的金属和0.5重量%以下的游离碳。 所述粉末具有NaCl型晶体结构,并且由TiC x O y N z表示的组成,其中X,Y和Z满足关系:0.5 <= X <= 1.0; 0 <= Y <= 0.3; 0 <= Z <= 0.2; 0.5 <= X + Y + Z <= 1.0)。粉末的制备方法是:将作为碳源的有机物质溶解在溶剂中制备液体,其中有机物质含有至少一个OH或COOH基团, 是一种可与钛醇钛合钛的官能团,除C,H,N和O之外不含元素; 将钛醇盐与液体混合以满足以下关系:0.7 <=α<= 1.0(其中α是碳源与钛醇盐的摩尔比),以获得前体溶液; 在1050〜1500℃的温度下,在非氧化性气氛或真空气氛中对前体溶液中的产物进行热处理。本发明可以提供具有纳米级粒度的细小的碳化钛粉末, 不含无机杂质,如氧化钛和金属,游离碳少,有效提高碳化钛 - 陶瓷复合烧结体的特性。
Abstract:
A highly heat-conductive Si-containing material containing a Si phase whose lattice constant at room temperature is controlled at a level of more than 0.54302 nm but 0.54311 nm or less. Firing is conducted using a kiln material containing no B compound. With this highly heat-conductive Si-containing material and the process for production thereof, a reduction in heat conductivity can be prevented and a high heat conductivity can be exhibited stably.