公开(公告)号：JPS57192236A

公开(公告)日：1982-11-26

申请号：JP7568081

申请日：1981-05-21

Applicant: SHOWA DENKO KK

Inventor： HAGIWARA MASARU ,  MACHIDA YOSHIO ,  NAKASHIMA SHIYOUJI

IPC: C22C1/02

Abstract: PURPOSE:To economically produce a Ca-Al alloy, by applying an electric current to CaO-Al2O3 molten slag as a resistance heater, adding CaO and Al to the surface of the molten slag, and heating and reacting the additives with the molten slag. CONSTITUTION:An upper electrode 1 and a furnace-bottom electrode 2 made of artificial graphite are located inside an electric furnace made of a refractory material 3 such as Al2O3. Molten slag 6 such as CaO-Al2O3 prepared in another furnace is poured into the electric furnace. The upper electrode 1 is immersed in the molten slag. An electric current is applied to the molten slag 6 between the upper electrode 1 and the furnace-bottom electrode 2, so that the molten slag is heated and held at 1,500 deg.C or so by electric resistance heating. Al is added to the molten slag from the upside and melted, while CaO is added to the molten Al to reduce CaO with Al. In this way, the additives are changed into a molten Al alloy 5 containing Ca

公开(公告)号：JPH0347901A

公开(公告)日：1991-02-28

申请号：JP18169189

申请日：1989-07-14

Applicant: SHOWA DENKO KK

Inventor： SHOJI TAKASHI ,  KAWACHI TSUNEO ,  HAGIWARA MASARU

IPC: B23K20/00 ,  B22F1/00 ,  B22F7/08 ,  C04B37/00 ,  C22C5/06 ,  C22C5/08 ,  C23C24/00

Abstract: PURPOSE:To manufacture suitable material for adhesion even at the time of joining between different materials by preparing a material containing multiple powder material composed of the specific ratio of Cu, Ti, Mo, Ag, etc., and mechanically engaging and adhering each component with mechanical alloy method. CONSTITUTION:The material for adhesion composed of wt. ratio of 20 - 50% Cu and 0.5 - 10% at least one kind among Ti, Nb and Zr and further 15 - 50% Mo and the balance Ag with inevitable impurities, is prepared. Then, by mixing stirring and pulverizing the metal powder of each component with grinding machine, etc., the multiple powder (

公开(公告)号：JPH0345571A

公开(公告)日：1991-02-27

申请号：JP18060689

申请日：1989-07-14

Applicant: SHOWA DENKO KK

Inventor： KAWACHI TSUNEO ,  HAGIWARA MASARU ,  SHOJI TAKASHI

IPC: C04B37/02

Abstract: PURPOSE:To obtain the subject substrate having improved thermal shock resistance by bonding Cu and an alumina substrate having a prescribed bending strength by interposing a (Cu, Ni)-(Ti, Zr, Nb)-Ag metallic bonding material between them. CONSTITUTION:The objective Cu.ceramic composite substrate is produced by bonding Cu and an alumina substrate with a (Cu, Ni)-(Ti, Zr, Nb)-Ag metallic bonding material. The metallic bonding material is composed of 10-60wt.% of Cu and/or Ni, 0.5-10wt.% of Ti, Nb and/or Zr and the remaining part of Ag. The alumina substrate has a bending strength of >=27kg/mm .

公开(公告)号：JPH02160676A

公开(公告)日：1990-06-20

申请号：JP31556088

申请日：1988-12-14

Applicant: SHOWA DENKO KK

Inventor： SHOJI TAKASHI ,  KAWACHI TSUNEO ,  HAGIWARA MASARU

IPC: B23P11/00 ,  B23K20/00 ,  C04B37/02 ,  C23C28/00 ,  H05K1/05 ,  H05K3/38

Abstract: PURPOSE:To firmly bond a metallic material to a ceramic material by preforming an alumina film of flame spraying on a face of metal to be bonded, coating the film of flame spraying with a pasty bonding material containing specific alloy powder, piling ceramic on the coated film and hot-pressing. CONSTITUTION:An aluminum film of flame spraying is preformed on a face of iron-based or copper-based metal to be bonded and the alumina film of flame spraying is coated with a pasty binder containing alloy powder having a composition comprising 10-60wt.% at least one of Cu and Ni, 0.5-10wt.% at least one of Ti, Nb and Zr and the rest Ag containing inevitable impurities. Then ceramic comprising alumina, aluminum nitride or silicon nitride is piled on the coated face and hot-pressed.

公开(公告)号：JPH0477369A

公开(公告)日：1992-03-11

申请号：JP18749390

申请日：1990-07-16

Applicant: SHOWA DENKO KK

Inventor： SHOJI TAKASHI ,  HAGIWARA MASARU ,  KAWACHI TSUNEO ,  UTSUNOMIYA MASAHIDE ,  SHIBUE YOSHIHIRO

IPC: B32B15/04 ,  C04B37/02 ,  H01L23/12 ,  H01L23/15 ,  H05K3/00

Abstract: PURPOSE:To improve the cracking resistance of a metal-ceramic laminated substrate by making a binder layer interposed between a metallic sheet and a ceramic substrate larger than the metallic sheet and relieving stress. CONSTITUTION:A binder 3 contg. an active metal is spread on the surface of a ceramic substrate 1 so that the resulting binder layer is made larger than a metallic material 2. This metallic material 2 is stuck to the substrate 1, pressed and heated to obtain a metal-ceramic laminated substrate. The thermal shock resistance, that is, cracking resistance of the laminated substrate is remarkably improved.