公开(公告)号：JPH08333424A

公开(公告)日：1996-12-17

申请号：JP13515296

申请日：1996-05-29

Applicant: IBM

Inventor： FURANSHISU CHIYAARUZU BAANZU ,  UIRIAMU UEZAAZU FUREMINGU ,  BIKUTAA II UEI RII ,  RANDEI UIRIAMU SUNAIDAA

IPC: C07C315/04 ,  C07C317/36 ,  C08F20/34 ,  C08F20/38 ,  C08F220/06 ,  C08F220/10 ,  C08F220/34 ,  C08F220/38 ,  C09D133/04 ,  C09D133/06 ,  C09D133/14 ,  G03F1/00 ,  G03F7/039 ,  G03F7/20 ,  H01L21/027 ,  H01L23/498 ,  H05K3/00 ,  H05K3/18

公开(公告)号：JPH0227619A

公开(公告)日：1990-01-30

申请号：JP11761989

申请日：1989-05-12

Applicant: IBM

Inventor： EDOWAADO MAACHIN ENGURAA ,  TOIBO TAAMO KODASU ,  BIKUTAA II UEI RII

IPC: C04B35/00 ,  C01G1/00 ,  C04B35/45 ,  H01B12/12 ,  H01B13/00 ,  H01L39/24

Abstract: PURPOSE: To manufacture a long wire by introducing submicron-sized powder of superconductive ceramic material to a copper pipe to coat the inner surface of the pipe, and supplying oxygen into the pipe, while maintaining the outer side of the pipe in inactive atmosphere, for sintering the powder. CONSTITUTION: Water solution of nitrate of Y, Ba and Cu is atomized to be micron-sized liquid drops to be carried in a furnace by an oxygen gas current to be submicron-sized powder of superconductor of Y1 Ba2 Cu3 O7 , this fine powder is introduced to a copper pipe of a specified length, and its inner wall is coated under a proper temperature gradient to form a uniform and high-density film. Next, the copper pipe is placed in an inactive atmosphere, heated oxygen is supplied to the inside, and it is heated from the inside to be sintered. The copper surface on the outer side is protected by the inactive atmosphere from oxidation A long wire can thus be manufactured.