摘要:
It is intended to provide a semiconductor ceramic composition in which a part of Ba in BaTiO3 is substituted with Bi—Na, which is capable of restraining the evaporation of Bi in the calcination step, is capable of restraining the compositional deviation of Bi—Na thereby suppressing the formation of different phases, is capable of further reducing the resistivity at room temperature, and is capable of restraining the fluctuation of the Curie temperature; and to provide a production process of the same. When a calcined Ba(TiM)O3 powder (M is a semiconductor dopant) and a calcined (BaNa)TiO3 powder are separately prepared and the Ba(TiM)O3 powder is calcined at a relatively high temperature while the (BaNa)TiO3 powder is at a relatively low temperature, both at the most suitable temperatures for them, then the evaporation of Bi may be retarded and the compositional deviation of Bi—Na may be thereby suppressed to inhibit the formation of different phases; and when these calcined powders are mixed, formed and sintered, then a semiconductor ceramic composition which has a low resistivity at room temperature and is capable of restraining the fluctuation of the Curie temperature can be obtained.
摘要:
The invention intends to provide, in BaTiO3 semiconductor porcelain composition, a semiconductor porcelain composition that, without using Pb, can shift the Curie temperature to a positive direction and can significantly reduce the resistivity at room temperature. According to the invention, when Ba is partially substituted by an A1 element (at least one kind of Na, K and Li) and an A2 element (Bi) and Ba is further substituted by a specific amount of a Q element, or when Ba is partially substituted by an A1 element (at least one kind of Na, K and Li) and an A2 element (Bi) and Ti is partially substituted by a specific amount of an M element, the optimal valence control can be applied and whereby the resistivity at room temperature can be significantly reduced. Accordingly, it is optimal for applications in a PTC thermistor, a PTC heater, a PTC switch, a temperature detector and the like, and particularly preferably in an automobile heater.
摘要:
The present invention provides a positive electrode active material that has rate characteristics suitable for nonaqueous electrolyte batteries and particularly nonaqueous electrolyte secondary batteries, a method by which this positive electrode active material can be easily mass produced, and a high-performance nonaqueous electrolyte battery that has a positive electrode active material obtained by this method.The present invention relates to a method of producing a positive electrode active material, the method comprising a step of mixing a carbon source with lithium manganese phosphate LiMnPO4 or a compound LiMn1-xMxPO4 (where, 0≦x
摘要:
Problem:To provide a production method of providing a semiconductor porcelain composition which is capable of shifting a Curie temperature in a positive direction with using Pb and has a considerably reduced resistivity at room temperature, and a method of producing a semiconductor porcelain composition which is capable of providing a property uniform to an inner portion of a material even in a material having a comparatively large and thick shape.Means for Resolution:A method of producing a semiconductor porcelain composition represented by a composition formula [(Bi0.5Na0.5)x(Ba1-yRy)1-x]TiO3, in which R is at least one element of La, Dy, Eu, Gd and Y and x and y each satisfy 0
摘要翻译:问题:提供一种提供半导体瓷组合物的制造方法,该半导体瓷组合物能够使用Pb使居里温度向正方向移动,并且在室温下具有显着降低的电阻率,以及制造能够在室温下制造的半导体瓷组合物的方法 即使在具有比较大而厚的形状的材料中也能均匀地提供到材料的内部。 用于分辨率的方法:由组成式[(Bi 0.5 N Na 0.5 N)x N(Ba
摘要:
An improved sample cell for use in a gas analyzer has a sample body with a measuring optical path extending traverse to the cell body. A sample gas inlet port is positioned at one end of the cell body, and a sample gas outlet port is positioned at the other end of the cell body. Porous plates can extend across the cell body, and appropriately-dimensioned apertures in the porous plates can ensure a consistent flow path of gas across the optical path without any stagnated flow patterns.
摘要:
Plasma processing of plural substrates is performed in a plasma processing apparatus, which is provided with a plasma processing chamber having an antenna electrode and a lower electrode for placing and retaining the plural substrates in turn within the plasma processing chamber, a gas feeder for feeding processing gas into the processing chamber, a vacuum pump for discharging gas from the processing chamber via a vacuum valve, and a solenoid coil for forming a magnetic field within the processing chamber. At least one of the plural substrates is placed on the lower electrode, and the processing gas is fed into the processing chamber. RF power is fed to the antenna electrode via a matching network to produce a plasma within the processing chamber in which a magnetic field has been formed by the solenoid coil. This placing of at least one substrate and this feeding of the processing gas are then repeated until the plasma processing of all of the plural substrates is completed. An end of seasoning is determined when a parameter including an internal pressure of the processing chamber has become stable to a steady value with plasma processing time.
摘要:
The invention intends to provide, in BaTiO3 semiconductor porcelain composition, a semiconductor porcelain composition that, without using Pb, can shift the Curie temperature to a positive direction and can significantly reduce the resistivity at room temperature. According to the invention, when Ba is partially substituted by an A1 element (at least one kind of Na, K and Li) and an A2 element (Bi) and Ba is further substituted by a specific amount of a Q element, or when Ba is partially substituted by an A1 element (at least one kind of Na, K and Li) and an A2 element (Bi) and Ti is partially substituted by a specific amount of an M element, the optimal valence control can be applied and whereby the resistivity at room temperature can be significantly reduced. Accordingly, it is optimal for applications in a PTC thermistor, a PTC heater, a PTC switch, a temperature detector and the like, and particularly preferably in an automobile heater.
摘要:
The present invention discloses: a resin composition comprising, as essential components, 100 parts by mass of a component (A) which is an epoxy resin, 41 to 80 parts by mass of a component (B) which is thermoplastic resin particles, and 20 to 50 parts by mass (in terms of diaminodiphenylsulfone) of a component (C) which is diaminodiphenylsulfone microencapsulated with a coating agent, in which resin composition the thermoplastic resin particles (B) comprise at least thermoplastic resin particles (B1) having an average particle diameter of 1 to 50 μm and thermoplastic resin particles (B2) having an average particle diameter of 2 to 100 μm at a mass ratio of 3:1 to 1:3 and the average particle diameter ratio D2/D1 of the average particle diameter D2 of the thermoplastic resin particles (B2) to the average particle diameter D1 of the thermoplastic resin particles (B1) is 2 or more, and a prepreg produced using the resin composition.
摘要:
A game apparatus functioning as an image transmitting apparatus includes a CPU. The CPU performs an edit of at least one image with a controller according to an instruction by a user, transmits image data of the image through a wireless communication module to a network during execution of the edit, and further transmits layout information indicating a layout of the image after completion of the edit.
摘要:
ABSTRACT The invention intends to provide a dielectric porcelain composition for use in electronic devices which can be controlled in the temperature coefficient πf in particular in a negative direction and can shorten a sintering period while maintaining a high Qf value and a high dielectric constant. According to the invention, in conventional composition having a composition formula represented by XBa(Mg1/3Ta2/3)O3-Y(BazSrl-z)(Ga1/2Ta1/2)O3, when Mg is substituted by Ni to form a specific structure, the temperature coefficient πf can be controlled in a negative direction and the πf can be controlled in the range of 0.80 to −4.45 ppm/° C. while maintaining a high Qf value and a high dielectric constant, and even when a sintering period, which has been so far necessary substantially 50 hr, is reduced to 25 hr substantially one half the above, similar Qf value can be obtained.