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    Pitch-based carbon foam heat sink with phase change material
    1.
    发明授权
    Pitch-based carbon foam heat sink with phase change material 有权
    带相变材料的沥青碳泡沫散热器

    公开(公告)号：US07166237B2

    公开(公告)日：2007-01-23

    申请号：US10246597

    申请日：2002-09-17

    申请人： James W. Klett ,  Timothy D. Burchell

    发明人： James W. Klett ,  Timothy D. Burchell

    IPC分类号： C09K5/00

    CPC分类号： F28D20/023 ,  B32B5/18 ,  C04B38/00 ,  C09K5/06 ,  F24F5/0035 ,  F28D5/00 ,  F28F13/003 ,  Y02E60/145 ,  Y02P20/124 ,  Y10T428/249954 ,  Y10T428/2918

    摘要： A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

    摘要翻译： 公开了一种生产碳泡沫散热器的方法，其消除了对常规氧化稳定化的需要。 该方法使用中间相或各向同性沥青和使用单一模具的简化方法。 泡沫在支柱中具有相对均匀的孔径分布和高度排列的图形结构。 泡沫材料可以制成复合材料，其可用于耐热和结构应用的高温夹芯板。 泡沫被包裹并填充相变材料以提供非常有效的散热装置。

    Pitch-based carbon foam and composites and uses thereof
    3.
    发明授权
    Pitch-based carbon foam and composites and uses thereof 失效
    沥青基碳泡沫及其复合材料及其用途

    公开(公告)号：US06673328B1

    公开(公告)日：2004-01-06

    申请号：US09519559

    申请日：2000-03-06

    申请人： James W. Klett ,  Timothy D. Burchell ,  Ashok Choudhury

    发明人： James W. Klett ,  Timothy D. Burchell ,  Ashok Choudhury

    IPC分类号： C01B3100

    CPC分类号： F28F21/02 ,  C01B32/00 ,  C04B38/00 ,  C04B2111/00189 ,  C04B2111/94 ,  C04B2201/32 ,  F28D5/02 ,  F28D20/023 ,  F28F13/187 ,  Y02E60/145 ,  C04B35/522 ,  C04B38/0022 ,  C04B38/0051 ,  C04B38/0054 ,  C04B38/0058 ,  C04B2103/0071 ,  C04B35/52 ,  C04B40/0259 ,  C04B40/0263

    摘要： A thermally conductive carbon foam is provided, normally having a thermal conductivity of at least 40 W/m·K. The carbon foam usually has a specific thermal conductivity, defined as the thermal conductivity divided by the density, of at least about 75 W·cm3/m·°K·gm. The foam also has a high specific surface area, typically at least about 6,000 m2/m3. The foam is characterized by an x-ray diffraction pattern having “doublet” 100 and 101 peaks characterized by a relative peak split factor no greater than about 0.470. The foam is graphitic and exhibits substantially isotropic thermal conductivity. The foam comprises substantially ellipsoidal pores and the mean pore diameter of such pores is preferably no greater than about 340 microns. Other materials, such as phase change materials, can be impregnated in the pores in order to impart beneficial thermal properties to the foam. Heat exchange devices and evaporatively cooled heat sinks utilizing the foams are also disclosed.

    摘要翻译： 提供导热碳泡沫，通常具有至少40W / m·K的热导率。 碳泡沫通常具有至少约75W·cm 3 / m·cm·g·m的比热传导率（定义为热导率除以密度）。 泡沫也具有高比表面积，通常至少约6,000m 2 / m 3。 泡沫的特征在于具有“双峰”100和101的X射线衍射图，其特征在于相对峰分裂系数不大于约0.470。 泡沫是石墨，并表现出基本上各向同性的热导率。 泡沫包括基本上椭圆形的孔，并且这些孔的平均孔径优选不大于约340微米。 可以将诸如相变材料的其它材料浸渍在孔中，以赋予泡沫有利的热性能。 还公开了使用泡沫的热交换装置和蒸发冷却的散热器。

    Pitch-based carbon foam and composites and use thereof
    7.
    发明授权
    Pitch-based carbon foam and composites and use thereof 有权
    沥青基碳泡沫及其复合材料及其用途

    公开(公告)号：US07070755B2

    公开(公告)日：2006-07-04

    申请号：US10059648

    申请日：2002-01-29

    申请人： James W. Klett ,  Timothy D. Burchell ,  Ashok Choudhury

    发明人： James W. Klett ,  Timothy D. Burchell ,  Ashok Choudhury

    IPC分类号： C01B31/04

    CPC分类号： F28F21/02 ,  C01B32/00 ,  C04B38/00 ,  C04B2111/00189 ,  C04B2111/94 ,  C04B2201/32 ,  F28D5/02 ,  F28D20/023 ,  F28F13/187 ,  Y02E60/145 ,  C04B35/522 ,  C04B38/0022 ,  C04B38/0051 ,  C04B38/0054 ,  C04B38/0058 ,  C04B2103/0071 ,  C04B35/52 ,  C04B40/0259 ,  C04B40/0263

    摘要： A thermally conductive carbon foam is provided, normally having a thermal conductivity of at least 40 W/m·K. The carbon foam usually has a specific thermal conductivity, defined as the thermal conductivity divided by the density, of at least about 75 W·cm3/m·° K·gm. The foam also has a high specific surface area, typically at least about 6,000 m2/m3. The foam is characterized by an x-ray diffraction pattern having “doublet” 100 and 101 peaks characterized by a relative peak split factor no greater than about 0.470. The foam is graphitic and exhibits substantially isotropic thermal conductivity. The foam comprises substantially ellipsoidal pores and the mean pore diameter of such pores is preferably no greater than about 340 microns. Other materials, such as phase change materials, can be impregnated in the pores in order to impart beneficial thermal properties to the foam. Heat exchange devices and evaporatively cooled heat sinks utilizing the foams are also disclosed.

    摘要翻译： 提供导热碳泡沫，通常具有至少40W / m·K的热导率。 碳泡沫通常具有至少约75W·cm 3·m·g·K·m的比热传导率（定义为热导率除以密度）。 泡沫也具有高的比表面积，通常至少约6,000m 2 / m 3以上。 泡沫的特征在于具有“双峰”100和101的X射线衍射图，其特征在于相对峰分裂系数不大于约0.470。 泡沫是石墨，并表现出基本上各向同性的热导率。 泡沫包括基本上椭圆形的孔，并且这些孔的平均孔径优选不大于约340微米。 可以将诸如相变材料的其它材料浸渍在孔中，以赋予泡沫有利的热性能。 还公开了使用泡沫的热交换装置和蒸发冷却的散热器。

    Pitch-based carbon foam heat sink with phase change material
    9.
    发明授权
    Pitch-based carbon foam heat sink with phase change material 有权
    带相变材料的沥青碳泡沫散热器

    公开(公告)号：US06780505B1

    公开(公告)日：2004-08-24

    申请号：US09489640

    申请日：2000-01-24

    申请人： James W. Klett ,  Timothy D. Burchell

    发明人： James W. Klett ,  Timothy D. Burchell

    IPC分类号： C01S3104

    CPC分类号： F28D20/023 ,  B32B5/18 ,  C04B38/00 ,  C09K5/06 ,  F24F5/0035 ,  F28D5/00 ,  F28F13/003 ,  Y02E60/145 ,  Y02P20/124 ,  Y10T428/249954 ,  Y10T428/2918

    摘要： A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

    摘要翻译： 公开了一种生产碳泡沫散热器的方法，其消除了对常规氧化稳定化的需要。 该方法使用中间相或各向同性沥青和使用单一模具的简化方法。 泡沫在支柱中具有相对均匀的孔径分布和高度排列的图形结构。 泡沫材料可以制成复合材料，其可用于耐热和结构应用的高温夹芯板。 泡沫被包裹并填充相变材料以提供非常有效的散热装置。