公开(公告)号：US07749297B2

公开(公告)日：2010-07-06

申请号：US10795968

申请日：2004-03-08

申请人： Kurt A. Habecker ,  James A. Fife

发明人： Kurt A. Habecker ,  James A. Fife

IPC分类号： C22C27/02

CPC分类号： H01G9/0525 ,  B22F1/0055 ,  B22F1/0088 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/043 ,  B22F2998/00 ,  C22C1/045

摘要： A niobium powder is described which when formed into an electrolytic capacitor anode, the anode has the capacitance of at least 62,000 CV/g. Methods of making flaked niobium powder which have high capacitance capability when formed into electrolytic capacitor anodes is also described. Besides niobium, the present invention is also applicable to other metals, including valve metals.

摘要翻译： 描述了一种铌粉末，当其形成电解电容器阳极时，该阳极具有至少62,000VV / g的电容。 还描述了当形成电解电容器阳极时制造具有高电容能力的片状铌粉末的方法。 除了铌之外，本发明也适用于其他金属，包括阀金属。

公开(公告)号：US07156893B2

公开(公告)日：2007-01-02

申请号：US10770895

申请日：2004-02-03

申请人： Kurt A. Habecker ,  James A. Fife

发明人： Kurt A. Habecker ,  James A. Fife

IPC分类号： B22F1/00 ,  H01G9/042

CPC分类号： H01G9/0525 ,  B22F1/0055 ,  B22F1/0085 ,  B22F1/0088 ,  B22F9/04 ,  B22F2009/043 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/045 ,  B22F1/0007 ,  B22F9/023

摘要： Methods of forming niobium powders and other metal powders are described. The method involves milling the metal powders at elevated temperatures and in the presence of at least one liquid solvent. The methods of the present invention have the ability to reduce DC leakage and/or increase capacitance capabilities of metal powders when formed into capacitor anodes. The present invention further has the ability to significantly reduce the milling time necessary to form high surface area metal powders and leads to reducing the amount of contaminants in the metal powders. Metal powders such as niobium powders having reduced amount of contaminants and/or having DC leakage or capacitance capabilities are also described. A process is further described for forming a flaked metal by wet-milling a metal powder into a flaked metal wherein at least one liquid fluorinated fluid is present during the wet-milling process. The process is particularly well suited for forming metal flakes, such as niobium or tantalum flakes, of high purity.

摘要翻译： 描述了形成铌粉末和其它金属粉末的方法。 该方法包括在升高的温度下和在至少一种液体溶剂的存在下研磨金属粉末。 当形成电容器阳极时，本发明的方法具有减少金属粉末的DC泄漏和/或增加电容能力的能力。 本发明还具有显着减少形成高表面积金属粉末所需的研磨时间并导致减少金属粉末中污染物量的能力。 还描述了具有减少的污染物量和/或具有DC泄漏或电容能力的金属粉末，例如铌粉末。 进一步描述了通过将金属粉末湿法研磨成片状金属来形成片状金属的方法，其中在湿式研磨过程中存在至少一种液体氟化流体。 该方法特别适用于形成高纯度的金属薄片，例如铌或钽薄片。

公开(公告)号：US06706240B2

公开(公告)日：2004-03-16

申请号：US10095245

申请日：2002-03-11

申请人： Kurt A. Habecker ,  James A. Fife

发明人： Kurt A. Habecker ,  James A. Fife

IPC分类号： B22F100

CPC分类号： H01G9/0525 ,  B22F1/0055 ,  B22F1/0085 ,  B22F1/0088 ,  B22F9/04 ,  B22F2009/043 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/045 ,  B22F1/0007 ,  B22F9/023

摘要： Methods of forming niobium powders and other metal powders are described. The method involves milling the metal powders at elevated temperatures and in the presence of at least one liquid solvent. The methods of the present invention have the ability to reduce DC leakage and/or increase capacitance capabilities of metal powders when formed into capacitor anodes. The present invention further has the ability to significantly reduce the milling time necessary to form high surface area metal powders and leads to reducing the amount of contaminants in the metal powders. Metal powders such as niobium powders having reduced amount of contaminants and/or having DC leakage or capacitance capabilities are also described. A process is further described for forming a flaked metal by wet-milling a metal powder into a flaked metal wherein at least one liquid fluorinated fluid is present during the wet-milling process. The process is particularly well suited for forming metal flakes, such as niobium or tantalum flakes, of high purity.

摘要翻译： 描述了形成铌粉末和其它金属粉末的方法。 该方法包括在升高的温度下和在至少一种液体溶剂的存在下研磨金属粉末。 当形成电容器阳极时，本发明的方法具有减少金属粉末的DC泄漏和/或增加电容能力的能力。 本发明还具有显着减少形成高表面积金属粉末所需的研磨时间并导致减少金属粉末中污染物量的能力。 还描述了具有减少的污染物量和/或具有DC泄漏或电容能力的金属粉末，例如铌粉末。 进一步描述了通过将金属粉末湿法研磨成片状金属来形成片状金属的方法，其中在湿式研磨过程中存在至少一种液体氟化流体。 该方法特别适用于形成高纯度的金属薄片，例如铌或钽薄片。

公开(公告)号：US06702869B2

公开(公告)日：2004-03-09

申请号：US10061497

申请日：2002-02-01

申请人： Kurt A. Habecker ,  James A. Fife

发明人： Kurt A. Habecker ,  James A. Fife

IPC分类号： C22C2916

CPC分类号： H01G9/0525 ,  B22F1/0055 ,  B22F1/0088 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/043 ,  B22F2998/00 ,  C22C1/045

摘要： A niobium powder is described which when formed into an electrolytic capacitor anode, the anode has the capacitance of at least 62,000 CV/g. Methods of making flaked niobium powder which have high capacitance capability when formed into electrolytic capacitor anodes is also described. Besides niobium, the present invention is also applicable to other metals, including valve metals.

公开(公告)号：US06402066B1

公开(公告)日：2002-06-11

申请号：US09527053

申请日：2000-03-16

申请人： Kurt A. Habecker ,  James A. Fife

发明人： Kurt A. Habecker ,  James A. Fife

IPC分类号： B02C1912

CPC分类号： H01G9/0525 ,  B22F1/0055 ,  B22F1/0085 ,  B22F1/0088 ,  B22F9/04 ,  B22F2009/043 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/045 ,  B22F1/0007 ,  B22F9/023

摘要： Methods of forming niobium powders and other metal powders are described. The method involves milling the metal powders at elevated temperatures and in the presence of at least one liquid solvent. The methods of the present invention have the ability to reduce DC leakage and/or increase capacitance capabilities of metal powders when formed into capacitor anodes. The present invention further has the ability to significantly reduce the milling time necessary to form high surface area metal powders and leads to reducing the amount of contaminants in the metal powders. Metal powders such as niobium powders having reduced amount of contaminants and/or having DC leakage or capacitance capabilities are also described. A process is further described for forming a flaked metal by wet-milling a metal powder into a flaked metal wherein at least one liquid fluorinated fluid is present during the wet-milling process. The process is particularly well suited for forming metal flakes, such as niobium or tantalum flakes, of high purity.

公开(公告)号：US06375704B1

公开(公告)日：2002-04-23

申请号：US09310322

申请日：1999-05-12

申请人： Kurt A. Habecker ,  James A. Fife

发明人： Kurt A. Habecker ,  James A. Fife

IPC分类号： B32B1500

CPC分类号： H01G9/0525 ,  B22F1/0055 ,  B22F1/0088 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/043 ,  B22F2998/00 ,  C22C1/045

摘要： A niobium powder is described which when formed into an electrolytic capacitor anode, the anode has the capacitance of at least 62,000 CV/g. Methods of making flaked niobium powder which have high capacitance capability when formed into electrolytic capacitor anodes is also described. Besides niobium, the present invention is also applicable to other metals, including valve metals.

摘要翻译： 描述了一种铌粉末，当其形成电解电容器阳极时，该阳极具有至少62,000VV / g的电容。 还描述了当形成电解电容器阳极时制造具有高电容能力的片状铌粉末的方法。 除了铌之外，本发明也适用于其他金属，包括阀金属。