公开(公告)号：US4847883A

公开(公告)日：1989-07-11

申请号：US7093

申请日：1987-01-27

Applicant: Jacques Fourre

Inventor： Jacques Fourre

IPC: H01J35/10

CPC classification number: H01J35/108 ,  H01J2235/084 ,  Y10T428/12625 ,  Y10T428/1284 ,  Y10T428/30

Abstract: The present invention concerns a support of carbonaceous material for a rotary target of X-ray tubes. The support is formed of two parts which are fixed with respect to each other, one part being of a carbon/carbon composite which provides mechanical strength and the other part being of polycrystalline graphite for receiving a refractory metal, by virtue of its coefficient of expansion. A thermal contact is provided between the two parts. The invention is especially applicable to targets of X-ray tubes which rotate at a high speed, 20,000 RPM and above.

Abstract translation: 本发明涉及用于X射线管的旋转靶的碳质材料的支撑体。 支撑体由相对于彼此固定的两个部分形成，一个部分是碳/碳复合材料，其提供机械强度，另一部分由用于接收难熔金属的多晶石墨，由于其膨胀系数 。 在两部分之间提供热接触。 本发明特别适用于以高速，20,000RPM以上旋转的X射线管的靶。

公开(公告)号：US4205055A

公开(公告)日：1980-05-27

申请号：US903915

申请日：1978-05-08

Applicant: Jacques Maire ,  Jacques Fourre ,  Jean P. Gervais

Inventor： Jacques Maire ,  Jacques Fourre ,  Jean P. Gervais

IPC: C01B31/04 ,  B01D53/02 ,  B01J21/18 ,  B01J35/10 ,  C01B31/08 ,  C04B35/52 ,  C04B38/00 ,  C01B31/02

CPC classification number: B01D53/02 ,  B01J21/18 ,  B01J35/10 ,  C04B35/52 ,  C04B38/0051 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1071 ,  C04B2201/40

Abstract: Dual pore-structured carbon and graphite consist essentially of a macroporous agglomeration of strongly bonded microporous grains of carbon or graphite the radii of the macropores therein being from substantially 10 to 350 .mu.m and those of the micropores from substantially 0.2 to 1.0 .mu.m, with the macropores being joined by intercommunicating channels which form a fluid permeable structure. Such carbon or graphite has a density of from 0.70 to 1.50 grams/cc., a permeability to gases of from 20 to 500 cm.sup.2 /sec/atmos and a porosity of from 30 to 50%. Such materials are produced by including in a mixture of tar or pitch and finely divided solid carbonaceous material in suitable proportions, a particulate eliminable non-carbon-forming material having a particle size of 10 to 350 .mu.m, which material is substantially insoluble in said mixture, in a proportion sufficient to secure the desired porosity, shaping and then heating the mixture to effect carbonization and/or graphitization thereof and, after the product has cooled, giving any appropriate after-treatment to eliminate any heat treated residue from said particulate material and leave the desired porous structure.

Abstract translation: 双孔结构碳和石墨基本上由碳或石墨的强粘结微孔颗粒的大孔附聚组成，其中大孔的半径大致为10至350μm，微孔的半径大致为0.2至1.0μm， 大孔通过形成流体可渗透结构的相互通道连接。 这种碳或石墨的密度为0.70至1.50克/立方厘米，对气体的渗透性为20至500厘米2 /秒/大气压，孔隙率为30至50％。 这些材料通过以焦油或沥青的混合物和适当比例的细分散的固体碳质材料的混合物制成，颗粒尺寸为10至350μm的可除去颗粒的非碳形成材料，该材料基本上不溶于所述 混合物，以足以确保所需孔隙率的成分，成型然后加热混合物以实现其碳化和/或石墨化，并且在产品冷却后，进行任何适当的后处理以从所述颗粒材料中除去任何经热处理的残余物 并留下所需的多孔结构。