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公开(公告)号:DE3482874D1
公开(公告)日:1990-09-06
申请号:DE3482874
申请日:1984-12-18
Applicant: IBM
IPC: C04B35/26 , C04B35/638 , C04B35/64 , C04B35/645
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公开(公告)号:DE69007180T2
公开(公告)日:1994-09-22
申请号:DE69007180
申请日:1990-05-21
Applicant: IBM
Inventor: DAUGHENBAUGH GERALD ALLEN , RIGBY EUGENE BERTRAND
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公开(公告)号:DE3278500D1
公开(公告)日:1988-06-23
申请号:DE3278500
申请日:1982-07-23
Applicant: IBM
Inventor: RIGBY EUGENE BERTRAND , ROBINSON NEIL LLOYD
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公开(公告)号:DE69007180D1
公开(公告)日:1994-04-14
申请号:DE69007180
申请日:1990-05-21
Applicant: IBM
Inventor: DAUGHENBAUGH GERALD ALLEN , RIGBY EUGENE BERTRAND
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公开(公告)号:DE3276366D1
公开(公告)日:1987-06-25
申请号:DE3276366
申请日:1982-12-10
Applicant: IBM
Inventor: WAI-CHUNG CHOW WILLIAM , RIGBY EUGENE BERTRAND
Abstract: Diffusion bonding of dissimilar ceramics can be accomplished by the application of pressure only while the ceramics are at a temperature at which their expansion rates are the same. A process for manufacturing magnetic head cores is disclosed where a magnetic ferrite is diffusion bonded to a non-magnetic ceramic by first heating the core pieces to a certain temperature range where the thermal expansion rates of the magnetic ferrite and the non-magnetic ceramic are the same and then applying the diffusion bonding pressure. The pressure is removed either before or after the bonded pieces are cooled.
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