アモルファスＣｕ‐Ｔｉ合金ろうによるアルミナと銅の接合

• 奈賀 正明

  大阪大学溶接工学研究所

• 浅見 勝彦

  東北大学金属材材料研究所

• 岡本 郁男

  大阪大学溶接工学研究所

書誌事項

タイトル別名

• Joining of alumina to copper using amorphous Cu-Ti filler metal.

抄録

Joining of alumina (99.62mass% Al₂O₂) to copper was made using amorphous Cu-Ti (34-57 at%) brazing filler metals at 1173 to 1323 K in 2.7×10^-3 Pa. The amorphous filler metals, 1 cm in width and 45 μm thick, were produced by liquid quenching. The superior flexibility of amorphous filler provides simplicity to joining process.<BR>The fracture shear strength of the joints was measured at room temperature. The strength of the joints brazed at 1323 K for 1.8 ks using Cu₅₀Ti₅₀ filler possesses 138.3 M Pa at room temperature. The strength of the joints at constant brazing time raises with an increase in brazing temperature. The strength increases slightly with an increase in titanium content in the filler. At 1298 K for 1.8 ks, the strength of joints at room temperature changes from 107.8 M Pa with Cu₆₆Ti₃₄ to 120.6 M Pa with Cu₄₃Ti₅₇. The strength of the joints was also investigated at high temperatures up to 973 K. The high temperature shear strength is almost constant up to 773 K, and deceases gradually at higher temperature.<BR>Isothermal solidification process takes place during joining, and copper dissoves into Cu-Ti filler metal, and then, copper solid solution containing Ti precipitates from Cu-Ti filler metal. On the other hand, the formation of titanium oxide TiO_x and (Al, Ti)₂O₃ solid solution oxide is attributable to the strong joining between alumina and Cu-Ti filler.

収録刊行物

• 溶接学会論文集

  溶接学会論文集 4 (2), 321-325, 1986

  一般社団法人 溶接学会

キーワード

• Joining
• Brazing
• Ceramics
• Alumina
• Amorphous filler
• Copper-titanium alloy
• Copper

詳細情報

• CRID: 1390282679698578816
• NII論文ID: 130003764756
• DOI: 10.2207/qjjws.4.321
• ISSN: 24348252
• ISSN: 02884771
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可