公开(公告)号：US6074453A

公开(公告)日：2000-06-13

申请号：US959167

申请日：1997-10-28

申请人： Iver E. Anderson ,  Timothy W. Ellis ,  Vitalij K. Pecharsky ,  Jason Ting ,  Robert Terpstra ,  Robert C. Bowman ,  Charles K. Witham ,  Brent T. Fultz ,  Ratnakumar V. Bugga

发明人： Iver E. Anderson ,  Timothy W. Ellis ,  Vitalij K. Pecharsky ,  Jason Ting ,  Robert Terpstra ,  Robert C. Bowman ,  Charles K. Witham ,  Brent T. Fultz ,  Ratnakumar V. Bugga

IPC分类号： B22F9/08 ,  C01B3/00 ,  C22C1/04 ,  H01M4/38 ,  H01M4/62 ,  H01M8/06 ,  H01M10/34 ,  B22F3/00 ,  B22F1/00

CPC分类号： B22F9/082 ,  C01B3/0047 ,  C01B3/0057 ,  C01B3/0084 ,  C22C1/0441 ,  H01M4/383 ,  H01M4/626 ,  H01M8/065 ,  B22F2998/00 ,  B22F2998/10 ,  H01M10/345 ,  Y02E60/327 ,  Y02P70/56 ,  Y10S420/90

摘要： A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage material, such, for example, LaNi.sub.5 and other AB.sub.5 type materials and AB.sub.5+x materials, where x is from about -2.5 to about +2.5, including x=0, and the melt is gas atomized under conditions of melt temperature and atomizing gas pressure to form generally spherical powder particles. The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen absorption/desorption cycling. A hydrogen storage component, such as an electrode for a battery or electrochemical fuel cell, made from the gas atomized hydrogen storage material is resistant to hydrogen degradation upon hydrogen absorption/desorption that occurs for example, during charging/discharging of a battery. Such hydrogen storage components can be made by consolidating and optionally sintering the gas atomized hydrogen storage powder or alternately by shaping the gas atomized powder and a suitable binder to a desired configuration in a mold or die.

摘要翻译： 制备耐贮存粉末的方法是使用具有合适的储氢材料成分的熔体，例如LaNi5和其他AB5型材料和AB5 + x材料，其中x为约-2.5 至约+2.5，包括x = 0，并且熔体在熔体温度和雾化气体压力的条件下被气体雾化，以形成通常为球形的粉末颗粒。 储氢粉末由于熔体的快速固化和在氢吸收/解吸循环期间更耐微裂纹的小粒径而显示出改进的化学均匀性。 由气体雾化的储氢材料制成的蓄电池组件，例如用于电池或电化学燃料电池的电极，例如在电池充电/放电期间，例如在氢吸收/解吸附时，耐氢降解。 这样的储氢组分可以通过固化和任选地烧结气体雾化的氢存储粉末或者通过将气体雾化粉末和合适的粘合剂成形为模具或模具中所需的构型来制备。

公开(公告)号：US06533563B1

公开(公告)日：2003-03-18

申请号：US09640431

申请日：2000-08-17

申请人： Joshua U. Otaigbe ,  Jon M. McAvoy ,  Iver E. Anderson ,  Jason Ting ,  Jia Mi ,  Robert Terpstra

发明人： Joshua U. Otaigbe ,  Jon M. McAvoy ,  Iver E. Anderson ,  Jason Ting ,  Jia Mi ,  Robert Terpstra

IPC分类号： B29B910

CPC分类号： B05B7/0861 ,  B01J2/04 ,  B29B9/00 ,  C08J3/12 ,  C08J2323/06

摘要： Method for making polymer particulates, such as spherical powder and whiskers, by melting a polymer material under conditions to avoid thermal degradation of the polymer material, atomizing the melt using gas jet means in a manner to form atomized droplets, and cooling the droplets to form polymer particulates, which are collected for further processing. Atomization parameters can be controlled to produce polymer particulates with controlled particle shape, particle size, and particle size distribution. For example, atomization parameters can be controlled to produce spherical polymer powders, polymer whiskers, and combinations of spherical powders and whiskers. Atomizing apparatus also is provided for atoomizing polymer and metallic materials.

摘要翻译： 通过在避免聚合物材料的热降解的条件下熔融聚合物材料来制造聚合物颗粒如球形粉末和晶须的方法，以气雾喷射装置雾化熔体，以形成雾化液滴，并冷却液滴形成 聚合物颗粒，其被收集用于进一步处理。 可以控制雾化参数以产生具有受控粒子形状，粒度和粒度分布的聚合物颗粒。 例如，可以控制雾化参数以产生球形聚合物粉末，聚合物晶须以及球形粉末和晶须的组合。 还提供雾化装置用于聚合物和金属材料的聚合。

公开(公告)号：US06171433B2

公开(公告)日：2001-01-09

申请号：US08895645

申请日：1997-07-17

申请人： Joshua U. Otaigbe ,  Jon M. McAvoy ,  Iver E. Anderson ,  Jason Ting ,  Jia Mi ,  Robert Terpstra

发明人： Joshua U. Otaigbe ,  Jon M. McAvoy ,  Iver E. Anderson ,  Jason Ting ,  Jia Mi ,  Robert Terpstra

IPC分类号： B32B3100

CPC分类号： B05B7/0861 ,  B01J2/04 ,  B29B9/00 ,  C08J3/12 ,  C08J2323/06

摘要： Method for making polymer particulates, such as spherical powder and whiskers, by melting a polymer material under conditions to avoid thermal degradation of the polymer material, atomizing the melt using gas jet means in a manner to form atomized droplets, and cooling the droplets to form polymer particulates, which are collected for further processing. Atomization parameters can be controlled to produce polymer particulates with controlled particle shape, particle size, and particle size distribution. For example, atomization parameters can be controlled to produce spherical polymer powders, polymer whiskers, and combinations of spherical powders and whiskers. Atomizing apparatus also is provided for atoomizing polymer and metallic materials.

摘要翻译： 通过在避免聚合物材料的热降解的条件下熔融聚合物材料来制造聚合物颗粒如球形粉末和晶须的方法，以气雾喷射装置以形成雾化液滴的方式雾化熔体，并冷却液滴形成 聚合物颗粒，其被收集用于进一步处理。 可以控制雾化参数以产生具有受控粒子形状，粒度和粒度分布的聚合物颗粒。 例如，可以控制雾化参数以产生球形聚合物粉末，聚合物晶须以及球形粉末和晶须的组合。 还提供雾化装置用于聚合物和金属材料的聚合。