公开(公告)号：WO1998006525A2

公开(公告)日：1998-02-19

申请号：PCT/US1997010559

申请日：1997-06-19

Applicant: IAP RESEARCH, INC.

Inventor： IAP RESEARCH, INC. ,  BARBER, John, P.

IPC: B22F00/00

CPC classification number: H01L39/248 ,  B22F3/005 ,  B22F3/087 ,  B22F3/105 ,  B22F3/14 ,  B22F2203/01 ,  B22F2998/00 ,  C04B35/45 ,  C04B35/645

Abstract: Structure and a method for producing very dense bodies of material from particulate materials. A particulate material is placed within an electrically conductive container. A solenoid or coil encompasses the electrically conductive container, and a large magnitude of electrical current is caused to flow through the solenoid or coil. As the electrical current flows through the solenoid or coil, large magnitudes of magnetic pressures are created upon the electrically conductive container, and the electrically conductive container is compressed, and the transverse dimension thereof is reduced. Thus, the particulate material within the electrically conductive container is very firmly compacted, and a rigid body of material is provided. Any one of numerous types of particulate material may be employed. For example, a body of electrical superconductive material of any desired size and shape can be produced by this method by the use of superconducting particulate material. A method and system for selecting various parameters which enable the material to be "over-pressure" and densified to densities in excess of 90 % of the material's maximum density is also illustrated in another embodiment of the invention. The various parameters include establishing a stand-off distance, a container wall density and thickness, a fill density and a compressibility value for the material. Once the various parameters are established and for a selected material, the material is magnetically compacted to over-pressure the material to a pressure level which exceeds the pressure applied by a wall of the container. This, in turn, enables the system and method to densify the material to densities in excess of 90 % of its maximum density.

Abstract translation: 用于从颗粒材料生产非常致密的材料的结构和方法。 将颗粒材料放置在导电容器内。 电磁线圈或线圈包围导电容器，并且使大的电流流过螺线管或线圈。 当电流流过螺线管或线圈时，在导电容器上产生大的磁压力，并且导电容器被压缩，并且其横向尺寸减小。 因此，导电容器内的颗粒材料非常牢固地压实，并且提供了刚体材料。 可以使用多种类型的颗粒材料中的任何一种。 例如，通过使用超导颗粒材料，可以通过该方法制造任何所需尺寸和形状的电极超导材料体。 在本发明的另一个实施例中还示出了用于选择能使材料“超压”并且致密化到超过材料最大密度的90％的密度的各种参数的方法和系统。 各种参数包括确定材料的间隔距离，容器壁密度和厚度，填充密度和压缩性值。 一旦建立了各种参数并且对于所选择的材料，材料被磁力压实以将材料过压到超过由容器的壁施加的压力的压力水平。 这又使系统和方法使材料的密度达到其最大密度的90％以上。