摘要:
A method of sensing the amount of a gas in a fluid flow includes operating an acoustic wave (AW) sensor at a first resonant frequency. The AW sensor includes a high temperature stable piezoelectric plate coupled to a first gas-absorbing layer. Also included is combining a fluid flow having a gas component with the first gas-absorbing layer at a temperature of at least about 500° C. At least one resonant frequency of the AW sensor is sensed. The amount of gas in the fluid flow is sensed by correlating the resonant frequency with the amount of gas absorbed in the first gas-absorbing layer.A sensor for sensing the amount of a gas in a fluid flow includes a first gas-absorbing layer, a high-temperature-stable piezoelectric plate coupled to the first gas-absorbing layer, and a controller coupled to the high-temperature-stable piezoelectric plate. The controller is coupled to the high-temperature stable piezoelectric plate to measure a resonant frequency in the high temperature stable piezoelectric plate correlated with an amount of gas absorbed by the first gas absorbing layer, whereby the amount of a gas in a fluid flow is sensed. The high-temperature-stable piezoelectric plate is formed of at least one material selected from the group consisting of AlN, GaN, Al1-xGaxN (0≦x≦1), GaPO4, AlPO4, and materials having the crystal structure of Ca2Ga2Ge4SiO14, e.g., Ca2Ga2Ge4SiO14, La3Ga5SiO14, La3Ga5.5Nb0.5O14, La3Ga5.5Ta0.5O14, and the like.
摘要:
A method of producing hollow alumina particles in which the grain size of hollow alumina particles is controlled and in which a high formation ratio of hollow particles is obtained while suppressing the formation of solid particles. The method includes irradiating supersonic waves to an aqueous solution containing aluminum nitrate or aluminum acetate, and a surfactant or an organic acid to generate micro-liquid droplets in an atomized state, introducing only minute liquid droplets having a certain grain size or less, which have been classified by an air stream, into a furnace and burning them in air.
摘要:
The present invention provides (1) hollow ceramics particles having a hollow structure formed by a porous shell layer comprising ceramics powders bonded to each other and having an average particle diameter of from 10 to 100 μm and a breaking strength of 5×104 MPa or more, (2) a hollow ceramics particles-containing composite material comprising hollow ceramics particles dispersed in a matrix which hollow ceramics particles formed by a porous shell layer comprising ceramics powders bonded to each other, wherein the aforementioned hollow ceramics particles are hollow particles obtained by sintering a precursor comprising the aforementioned ceramics powder covered by a resin powder in such an arrangement that a part of the aforementioned ceramics powder is embedded in the resin powder, and (3) a sliding member made of the aforementioned a hollow ceramics particles-containing composite material.
摘要:
A producing method for producing zirconia hollow particles in which a zirconia powder mutually combines to form a porous shell layer thereby constructing a hollow structure, the method being characterized in mixing under a pressurized contact a resin powder and a zirconia powder of a grain size smaller than that of the resin powder, thereby forming a precursor by covering a surface of the resin powder with the zirconia powder in a partially embedded state, and calcining the precursor to expel the resin powder and to mutually sinter the zirconia powder.
摘要:
A method of sensing the amount of a gas in a fluid flow includes operating an acoustic wave (AW) sensor at a first resonant frequency. The AW sensor includes a high temperature stable piezoelectric plate coupled to a first gas-absorbing layer. Also included is combining a fluid flow having a gas component with the first gas-absorbing layer at a temperature of at least about 500° C. At least one resonant frequency of the AW sensor is sensed. The amount of gas in the fluid flow is sensed by correlating the resonant frequency with the amount of gas absorbed in the first gas-absorbing layer. A sensor for sensing the amount of a gas in a fluid flow includes a first gas-absorbing layer, a high-temperature-stable piezoelectric plate coupled to the first gas-absorbing layer, and a controller coupled to the high-temperature-stable piezoelectric plate. The controller is coupled to the high-temperature stable piezoelectric plate to measure a resonant frequency in the high temperature stable piezoelectric plate correlated with an amount of gas absorbed by the first gas absorbing layer, whereby the amount of a gas in a fluid flow is sensed. The high-temperature-stable piezoelectric plate is formed of at least one material selected from the group consisting of AlN, GaN, Al1-xGaxN (0≦x≦1), GaPO4, AlPO4, and materials having the crystal structure of Ca2Ga2Ge4SiO14, e.g., Ca2Ga2Ge4SiO14, La3Ga5SiO14, La3Ga5.5Nb0.5O14, La3Ga5.5Ta0.5O14, and the like.
摘要翻译:检测流体流中的气体量的方法包括以第一谐振频率操作声波(AW)传感器。 AW传感器包括耦合到第一气体吸收层的高温稳定的压电板。 还包括在至少约500℃的温度下将具有气体成分的流体流与第一气体吸收层组合。感测AW传感器的至少一个谐振频率。 通过将共振频率与在第一气体吸收层中吸收的气体的量相关联来检测流体流中的气体量。 用于感测流体流中的气体量的传感器包括第一气体吸收层,耦合到第一气体吸收层的高温稳定的压电板和耦合到高温稳定的压电 盘子。 控制器耦合到高温稳定的压电板,以测量与第一气体吸收层吸收的气体量相关的高温稳定压电板中的谐振频率,从而感测流体流中的气体量 。 高温稳定型压电板由选自AlN,GaN,Al 1-x Ga x N(0 < X <= 1),GAPO 4,AlPO 4,以及具有Ca 2 Al 2 O 3的晶体结构的材料 Ge 2 O 4 SiO 2,例如Ca 2 Ga 2 SiO 4 SiO 2 La 3,Ga 3 SiO 14,La 3 N 3, 5.5铌0.5 O> 14 La La La La La>>> SUB>> SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB > O 14等。
摘要:
Provided is a menu display apparatus that displays a menu of a plurality of applications, including an acquisition unit that acquires display data of content information representing content to be displayed in the menu of the content managed by each application from each application and a display controller that controls a display of the content information in each area according to setting conditions for the area provided for each of the applications in the menu and the display information of the content information acquired from each application. Accordingly, the display of the content information to be displayed in the menu in each area is controlled according to setting conditions for the area provided for each application in the menu and display data of the content information acquired from each application.
摘要:
A producing method for producing zirconia hollow particles in which a zirconia powder mutually combines to form a porous shell layer thereby constructing a hollow structure, the method being characterized in mixing under a pressurized contact a resin powder and a zirconia powder of a grain size smaller than that of the resin powder, thereby forming a precursor by covering a surface of the resin powder with the zirconia powder in a partially embedded state, and calcining the precursor to expel the resin powder and to mutually sinter the zirconia powder.
摘要:
Provided are a functional porous film having a plurality of functions, a method of manufacturing the same, and a sensor using the same. In the functional porous film, a functional portion having a different function from a porous body is disposed on the inner wall of a pore of the porous body. The functional porous film is formed through forming a precursor film including a pore-forming powder such as an organic powder on which a material powder of the functional portion is deposited and a material powder of the porous body, and then heating the precursor film to remove the pore-forming powder and sinter the material powder of the porous body.