序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 Resistive type humidity sensor based on porous magnesium ferrite pellet US14466723 2014-08-22 US09671359B2 2017-06-06 Ravinder Kumar Kotnala; Jyoti Shah; Hari Kishan; Bhikham Singh
The present invention relates to a process for preparing a humidity sensor based on resistive type porous Magnesium Ferrite (MgFe2O4) pellets and a humidity sensor thereof. More particularly, the present invention includes a synthesis process of preparing 30 to 40% porous MgFe2O4 pellets. The process further includes making Ohmic contacts on the porous MgFe2O4 pellets. The process is very cost effective and optimized to keep the resistance of the porous MgFe2O4 pellets in the range 200-300 MΩ. Further, the response and recovery time of the porous MgFe2O4 pellets to humidity is in the range of few seconds only. Further, the porous MgFe2O4 pellets can be used for humidity sensing for more than 12 months. Due to resistance stability even after long-term exposure in humidity, the porous MgFe2O4 pellets do not require flash heating. Further, the humidity sensor prepared according to the process is highly sensitive towards relative humidity changes as the same is based on the measurement of resistance changes as compared to known humidity sensors which are based on the measurement of capacitance changes.
142 MONOLITH US15312727 2015-05-14 US20170144938A1 2017-05-25 Kang Li; Zhentao Wu
The present invention relates to a method of making a monolith having a plurality of channels extending therethrough, the method comprising,providing a suspension of polymer-coated particles in a first solvent;extruding the suspension from a primary orifice, while passing one or more second solvents from a plurality of secondary orifices arranged within the first orifice, into a third solvent, whereby a monolith precursor is formed from the polymer and particles,and sintering the monolith precursor to form a monolith.
143 Proton conducting membranes for hydrogen production and separation US14502303 2014-09-30 US09527044B2 2016-12-27 Eric D. Wachsman; Hee Sung Yoon; Takkeun Oh; Jianlin Li
In one embodiment, a membrane of proton-electron conducting ceramics that is useful for the conversion of a hydrocarbon and steam to hydrogen has a porous support coated with a film of a Perovskite-type oxide. By including the Zr and M in the oxide in place of Ce, the stability can be improved while maintaining sufficient hydrogen flux for efficient generation of hydrogen. In this manner, the conversion can be carried out by performing steam methane reforming (SMR) and/or water-gas shift reactions (WGS) at high temperature, where the conversion of CO to CO2 and H2 is driven by the removal of H2 to give high conversions.
144 Method for producing electrode assembly US14172006 2014-02-04 US09350013B2 2016-05-24 Tsutomu Teraoka; Sukenori Ichikawa; Hirofumi Hokari; Tomofumi Yokoyama
A method for producing an electrode assembly includes: obtaining a porous active material molded body by molding a constituent material containing a lithium multiple oxide in the form of particles by compression, and then performing a heat treatment at a temperature of 850° C. or higher and lower than the melting point of the used lithium multiple oxide; forming a solid electrolyte layer by applying a liquid containing a constituent material of an inorganic solid electrolyte to the surface of the active material molded body including the inside of each pore of the active material molded body, and then performing a heat treatment; and bonding a current collector to the active material molded body exposed from the solid electrolyte layer.
145 Porous material, manufacturing method of the same, and honeycomb structure US14478051 2014-09-05 US09259721B2 2016-02-16 Shuichi Ichikawa; Atsushi Mizuno
There is disclosed a porous material. The porous material contains aggregates, and a bonding material which bonds the aggregates to one another in a state where pores are formed among the aggregates, the bonding material contains crystalline cordierite, the bonding material further contains a rare earth element or a zirconium element, and a ratio of a mass of the bonding material to a total mass of the aggregates and the bonding material is from 12 to 45 mass %. The bonding material preferably contains, in the whole bonding material, 8.0 to 15.0 mass % of MgO, 30.0 to 60.0 mass % of Al2O3, 30.0 to 55.0 mass % of SiO2, and 1.5 to 10.0 mass % of a rare earth oxide or zirconium oxide.
146 POROUS MATERIAL, MANUFACTURING METHOD OF THE SAME, AND HONEYCOMB STRUCTURE US14478051 2014-09-05 US20150093540A1 2015-04-02 Shuichi ICHIKAWA; Atsushi MIZUNO
There is disclosed a porous material. The porous material contains aggregates, and a bonding material which bonds the aggregates to one another in a state where pores are formed among the aggregates, the bonding material contains crystalline cordierite, the bonding material further contains a rare earth element or a zirconium element, and a ratio of a mass of the bonding material to a total mass of the aggregates and the bonding material is from 12 to 45 mass %. The bonding material preferably contains, in the whole bonding material, 8.0 to 15.0 mass % of MgO, 30.0 to 60.0 mass % of Al2O3, 30.0 to 55.0 mass % of SiO2, and 1.5 to 10.0 mass % of a rare earth oxide or zirconium oxide.
147 RESISTIVE TYPE HUMIDITY SENSOR BASED ON POROUS MAGNESIUM FERRITE PELLET US14466723 2014-08-22 US20150061706A1 2015-03-05 Ravinder Kumar KOTNALA; Jyoti SHAH; Hari KISHAN; Bhikham SINGH
The present invention relates to a process for preparing a humidity sensor based on resistive type porous Magnesium Ferrite (MgFe2O4) pellets and a humidity sensor thereof. More particularly, the present invention includes a synthesis process of preparing 30 to 40% porous MgFe2O4 pellets. The process further includes making Ohmic contacts on the porous MgFe2O4 pellets. The process is very cost effective and optimized to keep the resistance of the porous MgFe2O4 pellets in the range 200-300MΩ. Further, the response and recovery time of the porous MgFe2O4 pellets to humidity is in the range of few seconds only. Further, the porous MgFe2O4 pellets can be used for humidity sensing for more than 12 months. Due to resistance stability even after long-term exposure in humidity, the porous MgFe2O4 pellets do not require flash heating. Further, the humidity sensor prepared according to the process is highly sensitive towards relative humidity changes as the same is based on the measurement of resistance changes as compared to known humidity sensors which are based on the measurement of capacitance changes.
148 PROCESS FOR MAKING A CERAMIC ARTICLE US13925899 2013-06-25 US20140374938A1 2014-12-25 Tihana FUSS; Laurie San-Miguel; Kevin R. Dickson; Walter T. Stephens
Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase.
149 CERAMIC FILTER ELEMENT AND METHOD FOR MANUFACTURING A CERAMIC FILTER ELEMENT US13898693 2013-05-21 US20140346104A1 2014-11-27 Bjarne Ekberg; Olli Högnabba; Rolf Hindstöm; David Eveland; Edward Vroman
The invention relates to a ceramic filter element (22) for removal of liquid from solids containing material in a capillary suction dryer. The filter element comprises a ceramic substrate covered by a sintered ceramic microporous layer (31). The sintered microporous membrane layer is provided with coarse solid particles (71) of a particle size larger than a pore size of the membrane material layer (31) so as to form a textured surface (50) which prevents a filter cake from sliding off the surface of the filter element prior to the intended cake discharge.
150 POROUS STABILIZED BEDS, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME US14131357 2012-07-06 US20140291570A1 2014-10-02 James F. Klausner; Renwei Mei; Ayyoub Mehdizadeh Momen; Kyle Allen
Disclosed herein is a method comprising disposing a first particle in a reactor; the first particle being a magnetic particle or a particle that can be influenced by a magnetic field, an electric field or a combination of an electrical field and a magnetic field; fluidizing the first particle in the reactor; applying a uniform magnetic field, a uniform electrical field or a combination of a uniform magnetic field and a uniform electrical field to the reactor; elevating the temperature of the reactor; and fusing the first particles to form a monolithic solid.
151 Proton conducting membranes for hydrogen production and separation US12996687 2009-06-10 US08845768B2 2014-09-30 Eric D. Wachsman; Heesung Yoon; Takkeun Oh; Jianlin Li
In one embodiment, a membrane of proton-electron conducting ceramics that is useful for the conversion of a hydrocarbon and steam to hydrogen has a porous support of M′-Sr1-z′M″z′Ce1-x′-y′Zrx′M′″y′O3-δ, Al2O3, mullite, ZrO2, CeO2 or any mixtures thereof where: M′ is Ni, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W, Zn, Pt, Ru, Rh, Pd, alloys thereof or mixtures thereof; M″ is Ba, Ca, Mg, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, or Yb; M′″ is Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, or Yb; z′ is 0 to about 0.5; x′ is 0 to about 0.5; y′ is 0 to about 0.5; and x′+y′>0; for example, Ni—SrCe1-x′Zrx′O3-δ, where x′ is about 0.1 to about 0.3. The porous support is coated with a film of a Perovskite-type oxide of the formula SrCe1-x-yZrxMyO3-δ where M is at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb, x is 0 to about 0.15 and y is about 0.1 to about 0.3. By including the Zr and M in the oxide in place of Ce, the stability can be improved while maintaining sufficient hydrogen flux for efficient generation of hydrogen. In this manner, the conversion can be carried out by performing steam methane reforming (SMR) and/or water-gas shift reactions (WGS) at high temperature, where the conversion of CO to CO2 and H2 is driven by the removal of H2 to give high conversions. Methods of preparing the membrane cells and a system for use of the membrane cells to prepare hydrogen are presented. A method for sequestering CO2 by reaction with methane or other hydrocarbon catalyzed by the novel membrane to form a syngas is also presented.
152 METHOD FOR PRODUCING ELECTRODE ASSEMBLY US14172006 2014-02-04 US20140216631A1 2014-08-07 Tsutomu TERAOKA; Sukenori ICHIKAWA; Hirofumi HOKARI; Tomofumi YOKOYAMA
A method for producing an electrode assembly includes: obtaining a porous active material molded body by molding a constituent material containing a lithium multiple oxide in the form of particles by compression, and then performing a heat treatment at a temperature of 850° C. or higher and lower than the melting point of the used lithium multiple oxide; forming a solid electrolyte layer by applying a liquid containing a constituent material of an inorganic solid electrolyte to the surface of the active material molded body including the inside of each pore of the active material molded body, and then performing a heat treatment; and bonding a current collector to the active material molded body exposed from the solid electrolyte layer.
153 Making carbon articles from coated particles US13285391 2011-10-31 US08703027B2 2014-04-22 Zhenhua Mao
Methods and compositions relate to manufacturing a carbonaceous article from particles that have pitch coatings. Heating the particles that are formed into a shape of the article carbonizes the pitch coatings. The particles interconnect with one another due to being formed into the shape of the article and are fixed together where the pitch coatings along adjoined ones of the particles contact one another and are carbonized to create the article.
154 METHOD AND APPARATUS FOR SINTERING FLAT CERAMICS US13865950 2013-04-18 US20130277613A1 2013-10-24 Hiroaki Miyagawa; Guang Pan; Hironaka Fujii; Bin Zhang; Amane Mochizuki; Toshitaka Nakamura
A method and apparatus for sintering flat ceramics using a mesh or lattice is described herein.
155 THERMAL INSULATOR AND METHOD OF MANUFACTURING THE SAME US13993849 2011-12-13 US20130266801A1 2013-10-10 Akifumi Sakamoto; Yoshihiko Goto; Yasuo Ito; Ken Maeda
A thermal insulator with both excellent heat insulation and strength and a method of manufacturing the thermal insulator are provided. A thermal insulator according to the present invention includes metal oxide fine particles with an average particle diameter equal to or smaller than 50 nm and a reinforcing fiber, wherein the thermal insulator has a bridge structure between the metal oxide fine particles which is formed by elution of part of the metal oxide fine particles. A method of manufacturing a thermal insulator according to the present invention includes a curing step of curing a dry pressed compact including metal oxide fine particles with an average particle diameter equal to or smaller than 50 nm and a reinforcing fiber under a pressurized vapor saturated atmosphere at a temperature equal to or higher than 100° C. for four hours and a drying step of drying the cured dry pressed compact.
156 METHOD FOR APPLYING DISCRIMINATING LAYER ONTO POROUS CERAMIC FILTERS VIA GAS-BORNE PREFABRICATED POROUS ASSEMBLIES US13813167 2011-08-17 US20130149440A1 2013-06-13 Aleksander J. Pyzik; Jun Cai; Andrey N. Soukhojak; Robert A. Newman
A porous discriminating layer is formed on a ceramic support having at least one porous wall by (a) establishing a flow of a gas stream containing highly porous particles through the support to deposit a layer of the highly porous particles of a ceramic or ceramic precursor onto wall(s) of the support and (b) calcining said deposited layer to form the discriminating layer. This method is an inexpensive and effective route to forming a discriminating layer onto the porous wall.
157 MAKING CARBON ARTICLES FROM COATED PARTICLES US13285391 2011-10-31 US20120119398A1 2012-05-17 Zhenhua Mao
Methods and compositions relate to manufacturing a carbonaceous article from particles that have pitch coatings. Heating the particles that are formed into a shape of the article carbonizes the pitch coatings. The particles interconnect with one another due to being formed into the shape of the article and are fixed together where the pitch coatings along adjoined ones of the particles contact one another and are carbonized to create the article.
158 Porous silicon carbide and process for producing the same US12206600 2008-09-08 US08029882B2 2011-10-04 Yoshio Kikuchi; Shinji Kawasaki
A silicon carbide porous object includes silicon carbide as an aggregate and metal silicon as a binder, the particles of silicon carbide being bonded to one another so as to have pores thereamong. A method for producing a silicon carbide porous object includes: firing raw materials formed by mixing silicon carbide and metal silicon with metal aluminum or an alloy including metal silicon and metal aluminum in an inert gas atmosphere or a reduced-pressure atmosphere to produce a metal aluminum-metal silicon-silicon carbide porous object; and oxidizing and firing the metal aluminum-metal silicon-silicon carbide porous object in an oxygen atmosphere.
159 Method for producing porous substances US11631174 2005-07-11 US07968490B2 2011-06-28 Shinichi Takeshima; Akio Koyama
A porous substance producing method for producing a porous substance; by holding particles for precursors of the porous substance in micelles or inverse micelles kept in a dispersed state in a solvent with a surfactant; by agglomerating the particles of the micelles or inverse micelles to each other; and by baking the agglomerated particles. The method comprises the step of agglomerating the particles of the micelles or inverse micelles to each other by performing a treatment to resolve the dispersed state of the micelles or inverse micelles containing the particles for the precursors, with the surfactant.
160 CMC with multiple matrix phases separated by diffusion barrier US11489855 2006-07-20 US07745022B2 2010-06-29 Jay E. Lane; Jay A. Morrison; Steven C. Butner; Andrew Szweda
A ceramic matrix composite (CMC) material (10) with increased interlaminar strength is obtained without a corresponding debit in other mechanical properties. This is achieved by infusing a diffusion barrier layer (20) into an existing porous matrix CMC to coat the exposed first matrix phase (19) and fibers (12), and then densifying the matrix with repeated infiltration cycles of a second matrix phase (22). The diffusion barrier prevents undesirable sintering between the matrix phases and between the second matrix phase and the fibers during subsequent final firing and use of the resulting component (30) in a high temperature environment.
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