公开(公告)号：EP0807189B1

公开(公告)日：2000-09-27

申请号：EP95942993.7

申请日：1995-12-06

申请人： THE DOW CHEMICAL COMPANY

发明人： BORN, David, W. ,  DESHMUKH, Uday, V. ,  FAWCETT, Timothy, G. ,  FOX, Richard, T. ,  NILSEN, Kevin, J. ,  PYZIK, Aleksander, J. ,  HAN, Chan ,  PERETTIE, Donald, J.

IPC分类号： C22C32/00 ,  G11B5/48 ,  G11B21/02

CPC分类号： C22C1/1036 ,  B22F2998/00 ,  C22C32/0057 ,  G11B5/596 ,  G11B5/731 ,  G11B5/82 ,  G11B5/8404 ,  G11B23/0064 ,  H01L23/15 ,  H01L2924/0002 ,  H01L2924/09701 ,  Y10T428/12028 ,  Y10T428/12049 ,  Y10T428/12056 ,  Y10T428/12063 ,  Y10T428/12069 ,  C22C32/00 ,  H01L2924/00

摘要： Hard disk drive components, such as sliders, load beams, support arms, actuators, actuator bearings, spacers, clamps, spindles, ball bearings, thrust bearings, journal bearings, base plates, housings, and covers, formed of a multi-phase ceramic-based material. One method of making the hard disk drive components includes (a) forming a porous body of ceramic; (b) infiltrating a liquid into the pores of the ceramic body; (c) solidifying the infiltrated liquid; and (d) machining the metal-infiltrated ceramic body to form the hard disk drive component.

公开(公告)号：EP0807189A2

公开(公告)日：1997-11-19

申请号：EP95942993.0

申请日：1995-12-06

申请人： THE DOW CHEMICAL COMPANY

发明人： BORN, David, W. ,  DESHMUKH, Uday, V. ,  FAWCETT, Timothy, G. ,  FOX, Richard, T. ,  NILSEN, Kevin, J. ,  PYZIK, Aleksander, J. ,  HAN, Chan ,  PERETTIE, Donald, J.

IPC分类号： C04B41 ,  C22C1 ,  C22C21 ,  C22C29 ,  C22C32 ,  G11B5 ,  G11B21 ,  G11B23 ,  G11B33 ,  H01L23

CPC分类号： C22C1/1036 ,  B22F2998/00 ,  C22C32/0057 ,  G11B5/596 ,  G11B5/731 ,  G11B5/82 ,  G11B5/8404 ,  G11B23/0064 ,  H01L23/15 ,  H01L2924/0002 ,  H01L2924/09701 ,  Y10T428/12028 ,  Y10T428/12049 ,  Y10T428/12056 ,  Y10T428/12063 ,  Y10T428/12069 ,  C22C32/00 ,  H01L2924/00

摘要： Hard disk drive components, such as sliders, load beams, support arms, actuators, actuator bearings, spacers, clamps, spindles, ball bearings, thrust bearings, journal bearings, base plates, housings, and covers, formed of a multi-phase ceramic-based material. One method of making the hard disk drive components includes (a) forming a porous body of ceramic; (b) infiltrating a liquid into the pores of the ceramic body; (c) solidifying the infiltrated liquid; and (d) machining the metal-infiltrated ceramic body to form the hard disk drive component.

公开(公告)号：EP0948471A1

公开(公告)日：1999-10-13

申请号：EP97950871.0

申请日：1997-12-03

申请人： THE DOW CHEMICAL COMPANY

发明人： BORN, David, W. ,  FOX, Richard, T. ,  PERETTIE, Donald, J.

IPC分类号： B32B15 ,  C04B37

CPC分类号： C04B37/021 ,  C04B35/63452 ,  C04B37/001 ,  C04B37/028 ,  C04B2237/30 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/401 ,  C04B2237/402

摘要： The invention is a complex-shaped article, comprising an article prepared by joining at least one multi-phase ceramic-metal part and at least one shaped part of another material, wherein the theoretical density of the at least one ceramic-metal part is greater than 80 percent. In another aspect, the invention is a process for preparing complex-shaped articles, comprising: (a) forming at least one ceramic-metal part; (b) forming at least one shaped part of another material; and (c) joining the at least one shaped ceramic-metal part with the at least one shaped part of another material such that a complex-shaped article is formed. The invention is a less costly and time-consuming process for preparing complex-shaped composite articles wherein the articles are formed of two or more selected materials wherein one of the materials is a ceramic-metal composite.

公开(公告)号：EP0946772A1

公开(公告)日：1999-10-06

申请号：EP97948517.0

申请日：1997-11-21

申请人： THE DOW CHEMICAL COMPANY

发明人： FOX, Richard, T. ,  HAN, Chan ,  PYZIK, Aleksander, J. ,  NILSSON, Robert, T.

IPC分类号： B22D19 ,  C04B41 ,  C22C1 ,  G11B5

CPC分类号： G11B5/7315 ,  C04B41/5155 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C22C1/1036 ,  C22C2001/1021 ,  C22C2001/1057 ,  G11B5/8404

摘要： A process for preparing complex-shaped, ceramic-metal composite articles, comprising: (a) contacting a non-wettable powder that is non-wetting to a metal to be used for infiltration with a shaped ceramic body to form a layer of the non-wettable powder on one or more surfaces of the shaped ceramic body, wherein the shaped ceramic body has a region where there is no layer of the non-wettable powder, and (b) infiltration the shaped ceramic body with the metal through the region or regions where there is no layer of the non-wettable powder, such that a complex-shaped ceramic-metal composite comprising one or more metal phases and one or more ceramic phases is formed, wherein the article has substantially the net shape of the shaped ceramic body and undesirable regions of excess metal on the surface and undesirable phases within the complex-shaped ceramic-metal composite article near the surface are located only in the region or regions where there is no layer of the non-wettable powder. The process of the invention allows the preparation of complex-shaped ceramic-metal composite articles with undesirable regions of excess metal and undesirable phases on the surface(s), of, or within, the article only in the regions where there is, or was, no layer of non-wettable powder. The process of the invention allows the preparation of a complex-shaped ceramic-metal composite article which requires little or no machining of the surface(s) to achieve a finished article. A complex-shaped ceramic-metal composite article is prepared which contains few undesirable regions of excess metal and undesirable phases.