SEMI-PASSIVE CONTROL OF SOLIDIFICATION IN POWDERED MATERIALS

    公开(公告)号:US20200261976A1

    公开(公告)日:2020-08-20

    申请号:US16869739

    申请日:2020-05-08

    Abstract: Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering.

    SEMI-PASSIVE CONTROL OF SOLIDIFICATION IN POWDERED MATERIALS

    公开(公告)号:US20220314316A1

    公开(公告)日:2022-10-06

    申请号:US17838000

    申请日:2022-06-10

    Abstract: Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering.

    MULTIPHASE COATINGS WITH SEPARATED FUNCTIONAL PARTICLES, AND METHODS OF MAKING AND USING THE SAME

    公开(公告)号:US20190048223A1

    公开(公告)日:2019-02-14

    申请号:US15957638

    申请日:2018-04-19

    Abstract: Some variations provide a multiphase polymer composition comprising a first polymer material and a second polymer material that are chemically distinct, wherein the first polymer material and the second polymer material are microphase-separated on a microphase-separation length scale from about 0.1 microns to about 500 microns, wherein the multiphase polymer composition comprises first solid functional particles selectively dispersed within the first polymer material, and wherein the first solid functional particles are chemically distinct from the first polymer material and the second polymer material. Some embodiments provide an anti-corrosion composition comprising first corrosion-inhibitor particles or precursors selectively dispersed within the first polymer material, wherein the multiphase polymer composition optionally further comprises second corrosion-inhibitor particles or precursors selectively dispersed within the second polymer material. These multiphase polymer compositions may be used for other applications, such as self-cleaning, self-healing, or flame-retardant coatings. Methods of making and using these multiphase polymer compositions are disclosed.

    METHODS AND APPARATUS FOR SENSING THE INTERNAL TEMPERATURE OF AN ELECTROCHEMICAL DEVICE
    5.
    发明申请
    METHODS AND APPARATUS FOR SENSING THE INTERNAL TEMPERATURE OF AN ELECTROCHEMICAL DEVICE 有权
    用于感测电化学装置的内部温度的方法和装置

    公开(公告)号:US20140372055A1

    公开(公告)日:2014-12-18

    申请号:US14303132

    申请日:2014-06-12

    Abstract: The internal temperature of an electrochemical device may be probed without a thermocouple, infrared detector, or other auxiliary device to measure temperature. Some methods include exciting an electrochemical device with a driving profile; acquiring voltage and current data from the electrochemical device, in response to the driving profile; calculating an impulse response from the current and voltage data; calculating an impedance spectrum of the electrochemical device from the impulse response; calculating a state-of-charge of the electrochemical device; and then estimating internal temperature of the electrochemical device based on a temperature-impedance-state-of-charge relationship. The electrochemical device may be a battery, fuel cell, electrolytic cell, or capacitor, for example. The procedure is useful for on-line applications which benefit from real-time temperature sensing capabilities during operations. These methods may be readily implemented as part of a device management and safety system.

    Abstract translation: 可以探测电化学装置的内部温度而不用热电偶,红外检测器或其他辅助装置来测量温度。 一些方法包括激发具有驱动轮廓的电化学装置; 响应于驱动轮廓从电化学装置获取电压和电流数据; 从电流和电压数据计算脉冲响应; 从脉冲响应计算电化学装置的阻抗谱; 计算电化学装置的充电状态; 然后基于温度 - 阻抗 - 电荷状态关系来估计电化学装置的内部温度。 电化学装置可以是例如电池,燃料电池,电解池或电容器。 该程序对于在运行期间受益于实时温度感测能力的在线应用是有用的。 这些方法可以容易地实现为设备管理和安全系统的一部分。

    MULTIPHASE COATINGS WITH SEPARATED FUNCTIONAL PARTICLES, AND METHODS OF MAKING AND USING THE SAME

    公开(公告)号:US20220119673A1

    公开(公告)日:2022-04-21

    申请号:US17564903

    申请日:2021-12-29

    Abstract: Some variations provide a multiphase polymer composition comprising a first polymer material and a second polymer material that are chemically distinct, wherein the first polymer material and the second polymer material are microphase-separated on a microphase-separation length scale from about 0.1 microns to about 500 microns, wherein the multiphase polymer composition comprises first solid functional particles selectively dispersed within the first polymer material, and wherein the first solid functional particles are chemically distinct from the first polymer material and the second polymer material. Some embodiments provide an anti-corrosion composition comprising first corrosion-inhibitor particles or precursors selectively dispersed within the first polymer material, wherein the multiphase polymer composition optionally further comprises second corrosion-inhibitor particles or precursors selectively dispersed within the second polymer material. These multiphase polymer compositions may be used for other applications, such as self-cleaning, self-healing, or flame-retardant coatings. Methods of making and using these multiphase polymer compositions are disclosed.

    MULTIPHASE COATINGS WITH SEPARATED FUNCTIONAL PARTICLES, AND METHODS OF MAKING AND USING THE SAME

    公开(公告)号:US20200277510A1

    公开(公告)日:2020-09-03

    申请号:US16876075

    申请日:2020-05-17

    Abstract: Some variations provide a multiphase polymer composition comprising a first polymer material and a second polymer material that are chemically distinct, wherein the first polymer material and the second polymer material are microphase-separated on a microphase-separation length scale from about 0.1 microns to about 500 microns, wherein the multiphase polymer composition comprises first solid functional particles selectively dispersed within the first polymer material, and wherein the first solid functional particles are chemically distinct from the first polymer material and the second polymer material. Some embodiments provide an anti-corrosion composition comprising first corrosion-inhibitor particles or precursors selectively dispersed within the first polymer material, wherein the multiphase polymer composition optionally further comprises second corrosion-inhibitor particles or precursors selectively dispersed within the second polymer material. These multiphase polymer compositions may be used for other applications, such as self-cleaning, self-healing, or flame-retardant coatings. Methods of making and using these multiphase polymer compositions are disclosed.

    BUGPHOBIC AND ICEPHOBIC COMPOSITIONS WITH FLUID ADDITIVES

    公开(公告)号:US20190023910A1

    公开(公告)日:2019-01-24

    申请号:US16144537

    申请日:2018-09-27

    Abstract: Some variations provide an anti-fouling segmented copolymer composition comprising: (a) one or more first soft segments selected from fluoropolymers; (b) one or more second soft segments selected from polyesters or polyethers; (c) one or more isocyanate species possessing an isocyanate functionality of 2 or greater, or a reacted form thereof; (d) one or more polyol or polyamine chain extenders or crosslinkers, or a reacted form thereof; and (e) a fluid additive selectively disposed in the first soft segments or in the second soft segments. Other variations provide an anti-fouling segmented copolymer precursor composition comprising a fluid additive precursor selectively disposed in the first soft segments or in the second soft segments, wherein the fluid additive precursor includes a protecting group. The anti-fouling segmented copolymer composition may be present in an anti-ice coating, an anti-bug coating, an anti-friction coating, an energy-transfer material, or an energy-storage material, for example.

    SEMI-PASSIVE CONTROL OF SOLIDIFICATION IN POWDERED MATERIALS
    10.
    发明申请
    SEMI-PASSIVE CONTROL OF SOLIDIFICATION IN POWDERED MATERIALS 审中-公开
    粉末状材料的半固态控制

    公开(公告)号:US20170021417A1

    公开(公告)日:2017-01-26

    申请号:US15209903

    申请日:2016-07-14

    Abstract: Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering.

    Abstract translation: 本文公开了改变熔融粉末固化的表面官能化粉末。 一些变型提供了包括由第一材料制成的多个颗粒的粉末材料,其中每个颗粒具有连续或间歇地表面官能化的纳米颗粒和/或微粒的颗粒表面积,用于控制粉末材料的固化 液态到固态。 其它变型提供了一种控制粉末材料固化的方法,包括将至少一部分粉末材料熔化成液态,并半主动地控制粉末材料从液态至固态的固化。 详细描述了半无源控制的几种技术。 所述方法还可以包括通过选自添加剂制造,注塑,压制和烧结,电容放电烧结或火花等离子体烧结中的一种或多种技术来产生结构。

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