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公开(公告)号：US06673328B1
公开(公告)日：2004-01-06
申请号：US09519559
申请日：2000-03-06
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。
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公开(公告)号：US6037032A
公开(公告)日：2000-03-14
申请号：US93406
申请日：1998-06-08
IPC分类号： F28D20/00 , B32B5/18 , C01B31/02 , C04B35/52 , C04B38/00 , C09K5/06 , C09K5/08 , F24F5/00 , F28D5/00 , F28D20/02 , F28F13/00 , B29C67/20 , B32B3/26 , C09K5/00
CPC分类号： C04B38/00 , B32B5/18 , C09K5/06 , F24F5/0035 , F28D20/023 , F28D5/00 , F28F13/003 , Y02E60/145 , Y02P20/124 , Y10S428/913 , Y10T428/233 , Y10T428/249954 , Y10T428/249956 , Y10T428/249994 , Y10T428/2991
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.
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公开(公告)号：US07166237B2
公开(公告)日：2007-01-23
申请号：US10246597
申请日：2002-09-17
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。
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4.发明授权Method for rapid fabrication of fiber preforms and structural composite materials 失效快速制造纤维预制件和结构复合材料的方法
公开(公告)号：US5871838A
公开(公告)日：1999-02-16
申请号：US774748
申请日：1996-12-30
CPC分类号： C04B35/83 , F16D69/023 , Y10T428/249928 , Y10T428/249929 , Y10T428/30
摘要： A densified carbon matrix carbon fiber composite preform is made by vacuum molding an aqueous slurry of carbon fibers and carbonizable organic powder to form a molded part. The molded part is dried in an oven at 50.degree. C. for 14 hours and hot pressed at 2000 psi at 400.degree. C. for 3 hours. The hot pressed part is carbonized at 650.degree. C. under nitrogen for 3 hours and graphite at 2400.degree. C. to form a graphitic structure in the matrix of the densified carbon matrix carbon fiber composite preform. The densified preform has a density greater than 1.1 g/cc.
摘要翻译： 通过真空成型碳纤维和可碳化有机粉末的水性浆料来制造致密化的碳基碳纤维复合预制件，以形成模制部件。 将模制部件在50℃的烘箱中干燥14小时，并在2000psi下在400℃下热压3小时。 热压部分在650℃在氮气下碳化3小时，石墨在2400℃碳化，以在致密碳基碳纤维复合预成型体的基质中形成石墨结构。 致密化预成型体的密度大于1.1g / cc。
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公开(公告)号：US07157019B2
公开(公告)日：2007-01-02
申请号：US10245974
申请日：2002-09-17
IPC分类号： C09K5/14
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.
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公开(公告)号：US06399149B1
公开(公告)日：2002-06-04
申请号：US09489799
申请日：2000-01-24
IPC分类号： B05D722
CPC分类号： B32B5/18 , B32B2266/04 , B32B2305/022 , B32B2309/68 , C04B38/00 , C09K5/06 , F24F5/0035 , F28D5/00 , F28D20/023 , F28F13/003 , Y02E60/145 , Y02P20/124 , Y10S428/913 , Y10T428/233 , Y10T428/249954 , Y10T428/249956 , Y10T428/249994 , Y10T428/2991
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。
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公开(公告)号：US07070755B2
公开(公告)日：2006-07-04
申请号：US10059648
申请日：2002-01-29
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。
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公开(公告)号：US07014151B2
公开(公告)日：2006-03-21
申请号：US10246231
申请日：2002-09-17
IPC分类号： C01B31/04
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.
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公开(公告)号：US06780505B1
公开(公告)日：2004-08-24
申请号：US09489640
申请日：2000-01-24
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。
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10.发明授权Method for rapid fabrication of fiber preforms and structural composite materials 失效快速制造纤维预制件和结构复合材料的方法
公开(公告)号：US5744075A
公开(公告)日：1998-04-28
申请号：US444986
申请日：1995-05-19
CPC分类号： C04B35/83 , F16D69/023 , Y10T428/249928 , Y10T428/249929 , Y10T428/30
摘要： A densified carbon matrix carbon fiber composite preform is made by vacuum molding an aqueous slurry of carbon fibers and carbonizable organic powder to form a molded part. The molded part is dried in an oven at 50.degree. C. for 14 hours and hot pressed at 2000 psi at 400.degree. C. for 3 hours. The hot pressed part is carbonized at 650.degree. C. under nitrogen for 3 hours and graphitized at 2400.degree. C. to form a graphitic structure in the matrix of the densified carbon matrix carbon fiber composite preform. The densified preform has a density greater than 1.1 g/cc.
摘要翻译： 通过真空成型碳纤维和可碳化有机粉末的水性浆料来制造致密化的碳基碳纤维复合预制件，以形成模制部件。 将模制部件在50℃的烘箱中干燥14小时，并在2000psi下在400℃下热压3小时。 将热压部分在650℃下在氮气下碳化3小时，并在2400℃石墨化，以在致密碳基碳纤维复合材料预成型体的基质中形成石墨结构。 致密化预成型体的密度大于1.1g / cc。
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