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1. 发明授权

US11828695B2 Surface characterization of porous solids and powder materials using flowing gas 有权
公开(公告)号：US11828695B2
公开(公告)日：2023-11-28
申请号：US17065464
申请日：2020-10-07
申请人： HORIBA Instruments, Incorporated
发明人： Miroslav Pejcinovic , Jeffrey Taylor Bodycomb
IPC分类号： G01N15/08 , G01N7/04 , G01N30/66 , G01N27/18
CPC分类号： G01N15/088 , G01N7/04 , G01N15/0893 , G01N27/18 , G01N30/66 , G01N2015/0833 , G01N2015/0873
摘要： A method for surface characterization of a porous solid or powder sample using flowing gas includes a controller that controls mass flow of a carrier gas and an adsorptive gas to form a mixture having a target concentration of the adsorptive gas over the sample, determining adsorptive gas concentration based on signals from a detector disposed downstream of the sample, automatically repeating the controlling and determining steps for a plurality of different target concentrations, and generating an isotherm for the sample based on the adsorptive gas concentration for the plurality of different target concentrations. The method may include immersing the sample in liquid nitrogen to cool the sample for all, or at least a portion of each of the different target concentrations. The target concentrations may vary from less than 5% to greater than 95%, and may vary in a stepwise manner.

2. 发明授权

US09618441B2 Determination of pore size in porous materials by evaporative mass loss 有权
公开(公告)号：US09618441B2
公开(公告)日：2017-04-11
申请号：US13695251
申请日：2011-05-02
申请人： Alan R. Greenberg , William B. Krantz , Elmira Kujundzic , Adrian Yeo , Seyed Saeid Hosseini
发明人： Alan R. Greenberg , William B. Krantz , Elmira Kujundzic , Adrian Yeo , Seyed Saeid Hosseini
IPC分类号： G01N15/08 , G01N5/04
CPC分类号： G01N15/088 , G01N5/04 , G01N15/08 , G01N15/0806 , G01N15/0893 , G01N2015/086
摘要： A method for determination of pore-size distribution in a porous material called evapo porometry (EP) is capable of determining pore sizes from approximately the nanometer scale up to the micron scale. EP determines the pore size based on the evaporative mass loss at constant temperature from porous materials that have been pre-saturated with either a wetting or non-wetting volatile liquid. The saturated porous material is placed in an appropriate test cell on a conventional microbalance to measure liquid mass loss at a constant temperature as a function of time. The mass-loss rate is then related to the pore-size distribution. The microbalance permits measuring the mass as a function of time. The slope of the mass versus time curve is the evaporation rate. The evaporation rate is related to the vapor pressure at the interface between the liquid in the porous material and the ambient gas phase. The vapor pressure in turn is related to the pore diameter.

3. 发明申请

US20130042670A1 DETERMINATION OF PORE SIZE IN POROUS MATERIALS BY EVAPORATIVE MASS LOSS 有权
标题翻译：通过蒸发质量损失确定多孔材料中的孔尺寸
公开(公告)号：US20130042670A1
公开(公告)日：2013-02-21
申请号：US13695251
申请日：2011-05-02
申请人： Alan R. Greenberg , William B. Krantz , Elmira Kujundzic , Adrian Yeo , Seyed Saeid Hosseini
发明人： Alan R. Greenberg , William B. Krantz , Elmira Kujundzic , Adrian Yeo , Seyed Saeid Hosseini
IPC分类号： G01N15/08
CPC分类号： G01N15/088 , G01N5/04 , G01N15/08 , G01N15/0806 , G01N15/0893 , G01N2015/086
摘要： A method for determination of pore-size distribution in a porous material called evapo porometry (EP) is capable of determining pore sizes from approximately the nanometer scale up to the micron scale. EP determines the pore size based on the evaporative mass loss at constant temperature from porous materials that have been pre-saturated with either a wetting or non-wetting volatile liquid. The saturated porous material is placed in an appropriate test cell on a conventional microbalance to measure liquid mass loss at a constant temperature as a function of time. The mass-loss rate is then related to the pore-size distribution. The microbalance permits measuring the mass as a function of time. The slope of the mass versus time curve is the evaporation rate. The evaporation rate is related to the vapor pressure at the interface between the liquid in the porous material and the ambient gas phase. The vapor pressure in turn is related to the pore diameter.
摘要翻译：用于测定称为蒸发孔隙率（EP）的多孔材料中的孔径分布的方法能够确定从大约纳米级至微米级的孔径。 EP基于已经用润湿或非润湿挥发性液体预饱和的多孔材料在恒定温度下基于蒸发质量损失来确定孔径。将饱和多孔材料放置在常规微量天平上的合适的测试池中，以在恒定温度下测量作为时间的函数的液体质量损失。然后质量损失率与孔径分布有关。微量天平允许测量质量作为时间的函数。质量对时间曲线的斜率是蒸发速率。蒸发速率与多孔材料中的液体与环境气相之间的界面处的蒸气压有关。蒸气压又与孔径有关。

4. 发明申请

US20120078541A1 HIGH-PRESSURE QUARTZ CRYSTAL MICROBALANCE 有权
标题翻译：高压水晶晶体微观
公开(公告)号：US20120078541A1
公开(公告)日：2012-03-29
申请号：US13208842
申请日：2011-08-12
申请人： Peter HESKETH , Sankar Nair , Ken McCarley , Milad Navaei , Kevin Bagnall , Anandram Venkatasubramanian
发明人： Peter HESKETH , Sankar Nair , Ken McCarley , Milad Navaei , Kevin Bagnall , Anandram Venkatasubramanian
IPC分类号： G06F19/00 , G01N7/00 , G01N9/00
CPC分类号： G01N5/02 , G01N15/082 , G01N15/0893
摘要： The present invention relates to a high-pressure quartz crystal microbalance sensor that is capable of measuring adsorption and diffusion characteristics of nanoporous materials and thin films at high pressures.
摘要翻译：本发明涉及一种高压石英晶体微量天平传感器，其能够测量高压下纳米多孔材料和薄膜的吸附和扩散特性。

5. 发明授权

US07421885B2 Method for characterizing porous low dielectric constant films 失效
标题翻译：表征多孔低介电常数膜的方法
公开(公告)号：US07421885B2
公开(公告)日：2008-09-09
申请号：US11168907
申请日：2005-06-28
申请人： Ronald Joseph Kitzhoffer , Scott Jeffrey Weigel , Charles Gardner Coe , Michael Francis Kimak , James Edward MacDougall , John Francis Kirner
发明人： Ronald Joseph Kitzhoffer , Scott Jeffrey Weigel , Charles Gardner Coe , Michael Francis Kimak , James Edward MacDougall , John Francis Kirner
IPC分类号： G01N15/08
CPC分类号： G01N15/0893
摘要： A method and apparatus for determining pore size distribution and/or the presence of at least one killer pore in at least a portion of a porous film deposited upon a substrate are disclosed herein. In one embodiment, there is provided a method for determining pore size distribution comprising: providing the substrate having the film deposited thereupon wherein the film comprises pores and wherein the pores have a first volume; exposing the film to an adsorbate at a temperature and a pressure sufficient to provide condensation of the adsorbate in pores and wherein the pores after the exposing step have a second volume; and measuring the difference between the first and the second volume using a volumetric technique; and calculating the pore size and pore volume using the change in the first and the second volume, the pressure, and a model that relates pressure to pore diameter.
摘要翻译：本文公开了一种用于确定沉积在基底上的多孔膜的至少一部分中的孔径分布和/或至少一个杀菌孔的存在的方法和装置。在一个实施方案中，提供了一种用于测定孔径分布的方法，包括：提供具有沉积在其上的膜的基材，其中所述膜包含孔，并且其中所述孔具有第一体积; 在足以使被吸附物在孔中冷凝的温度和压力下将膜暴露于吸附物，并且其中在曝光步骤之后的孔具有第二体积; 并使用体积技术测量第一和第二体积之间的差异; 并且使用第一和第二体积的变化，压力以及压力与孔径相关的模型来计算孔径和孔体积。

6. 发明申请

US20070009009A1 Method and device for determination of moisture content and solid state phase of solids using moisture sorption gravimetry and near infrared or raman spectroscopy 失效
标题翻译：使用湿度吸收重量法和近红外或拉曼光谱测定固体含水量和固态相的方法和装置
公开(公告)号：US20070009009A1
公开(公告)日：2007-01-11
申请号：US11510315
申请日：2006-08-25
申请人： Walter Dziki
发明人： Walter Dziki
IPC分类号： G01N25/58 , G01K13/00 , G01N25/00 , G01N33/15
CPC分类号： G01N5/025 , G01N5/02 , G01N15/0893 , G01N21/3554 , G01N21/359 , G01N21/65 , G01N25/56 , G01N2015/0866 , G01N2021/656 , G01N2201/08
摘要： A method and apparatus for measuring isotherms and determining solid state phase changes comprising a humidity generator having a temperature controlled internal chamber, a microbalance mounted externally to the internal chamber and a near infrared spectroscopy (NIRS) probe or Raman spectrometer probe mounted internally in the internal chamber, such that the mass of a sample suspended within the chamber and its solid state phase can be determined without disturbing the controlled environment surrounding the sample. The humidity generator includes means for controlling humidity and temperature within the internal chamber, an access port that extends into the internal chamber. The balance is situated near the port such that the balance mechanism extends within the internal chamber. The balance mechanism utilizes a means for holding a sample within the chamber such that the mass of the sample can be determined as it equilibrates to the temperature and relative humidity maintained within the internal cavity. The NIRS probe extends from a NIR spectrometer. Similarly, the Raman probe extends from a Raman spectrometer.
摘要翻译：一种用于测量等温线并确定固态相变的方法和装置，包括具有温度控制的内室的湿度发生器，安装在内室外部的微量天平和安装在内部的内部的近红外光谱（NIRS）探针或拉曼光谱仪探针使得可以确定悬浮在室内的样品的质量及其固态相，而不会干扰样品周围的受控环境。湿度发生器包括用于控制内部室内的湿度和温度的装置，延伸到内部室中的进入口。平衡部位于端口附近，使得平衡机构在内部腔室内延伸。平衡机构利用了将样品保持在室内的装置，使得可以确定样品的质量，因为样品的质量平衡于内腔内保持的温度和相对湿度。 NIRS探头从NIR光谱仪延伸。类似地，拉曼探针从拉曼光谱仪延伸。

7. 发明授权

US07107864B2 Quality control methods for gas diffusion media 有权
公开(公告)号：US07107864B2
公开(公告)日：2006-09-19
申请号：US10342898
申请日：2003-01-15
申请人： Joerg Roth
发明人： Joerg Roth
IPC分类号： G01N11/00
CPC分类号： G01N13/04 , G01N15/0893
摘要： The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.

8. 发明申请

US20060037416A1 Quality control methods for gas diffusion media 有权
标题翻译：气体扩散介质的质量控制方法
公开(公告)号：US20060037416A1
公开(公告)日：2006-02-23
申请号：US11249663
申请日：2005-10-13
申请人： Joerg Roth
发明人： Joerg Roth
IPC分类号： G01N11/00
CPC分类号： G01N13/04 , G01N15/0893
摘要： The present invention discloses various methods in which a quality of a diffusion media for use in a fuel cell assembly can be qualitatively evaluated. The material constant, an internal contact angle, a ratio of high and low energy pores, and an external contact angle can be calculated for the diffusion media and compared to a predetermined standard to evaluate the quality of the diffusion media.
摘要翻译：本发明公开了可以定性地评价用于燃料电池组件的扩散介质的质量的各种方法。可以计算扩散介质的材料常数，内部接触角，高能和低能隙的比率和外部接触角，并与预定标准进行比较，以评估扩散介质的质量。

9. 发明申请

US20060005608A1 Method for characterizing porous low dielectric constant films 失效
标题翻译：表征多孔低介电常数膜的方法
公开(公告)号：US20060005608A1
公开(公告)日：2006-01-12
申请号：US11168907
申请日：2005-06-28
申请人： Ronald Joseph Kitzhoffer , Scott Jeffrey Weigel , Charles Gardner Coe , Michael Francis Kimak , James Edward MacDougall , John Francis Kirner
发明人： Ronald Joseph Kitzhoffer , Scott Jeffrey Weigel , Charles Gardner Coe , Michael Francis Kimak , James Edward MacDougall , John Francis Kirner
IPC分类号： G01N15/08
CPC分类号： G01N15/0893
摘要： A method and apparatus for determining pore size distribution and/or the presence of at least one killer pore in at least a portion of a porous film deposited upon a substrate are disclosed herein. In one embodiment, there is provided a method for determining pore size distribution comprising: providing the substrate having the film deposited thereupon wherein the film comprises pores and wherein the pores have a first volume; exposing the film to an adsorbate at a temperature and a pressure sufficient to provide condensation of the adsorbate in pores and wherein the pores after the exposing step have a second volume; and measuring the difference between the first and the second volume using a volumetric technique; and calculating the pore size and pore volume using the change in the first and the second volume, the pressure, and a model that relates pressure to pore diameter.
摘要翻译：本文公开了一种用于确定沉积在基底上的多孔膜的至少一部分中的孔径分布和/或至少一个杀菌孔的存在的方法和装置。在一个实施方案中，提供了一种用于测定孔径分布的方法，包括：提供具有沉积在其上的膜的基材，其中所述膜包含孔，并且其中所述孔具有第一体积; 在足以使被吸附物在孔中冷凝的温度和压力下将膜暴露于吸附物，并且其中在曝光步骤之后的孔具有第二体积; 并使用体积技术测量第一和第二体积之间的差异; 并且使用第一和第二体积的变化，压力以及压力与孔径相关的模型来计算孔径和孔体积。

10. 发明申请

US20050217395A1 Method of inspecting porous structure 有权
标题翻译：检查多孔结构的方法
公开(公告)号：US20050217395A1
公开(公告)日：2005-10-06
申请号：US11082873
申请日：2005-03-18
申请人： Muneyuki Iwabuchi , Shinya Mori , Shuuji Ueda
发明人： Muneyuki Iwabuchi , Shinya Mori , Shuuji Ueda
IPC分类号： G01M99/00 , G01N15/08 , G01M19/00
CPC分类号： G01N15/0893
摘要： There is disclosed a method of inspecting a porous structure, capable of simply inspecting pore characteristics (porosity, average pore diameter, total pore volume) of the porous structure by inspection of a weight of a formed article which was formed, dried and worked into a predetermined dimension without requiring any special device or technique, and capable of easily performing a total inspection. A relation between a pore characteristics of a fired article obtained by firing a formed/dried formed article having a predetermined shape, and a weight of the formed article is measured beforehand, and a standard value of the pore characteristics of the fired article, and a standard value of the weight of the formed article are established. Thereafter, the pore characteristics of the fired article are inspected from the weight of the formed article based on the respective standard values.
摘要翻译：公开了一种检查多孔结构的方法，该多孔结构能够通过检查形成的干燥并加工成的成形制品的重量来简单地检查多孔结构的孔特性（孔隙率，平均孔径，总孔体积）预定尺寸，而不需要任何特殊的装置或技术，并且能够容易地执行全面检查。测量通过焙烧具有预定形状的成形/干燥成型制品获得的烧制制品的孔特性与成形制品的重量之间的关系，并且烧制制品的孔特征的标准值和建立了形成物的重量标准值。然后，根据各标准值，从成形品的重量检查烧成品的孔特性。

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