基本信息:
- 专利标题： CONDUCTIVE MATERIAL HAVING EXCELLENT ABRASION RESISTANCE AND HEAT RESISTANCE
- 申请号：EP19889277.0 申请日：2019-11-25
- 公开(公告)号：EP3889280A1 公开(公告)日：2021-10-06
- 发明人： TSURUTA Terumasa
- 申请人： Tanaka Kikinzoku Kogyo K.K.
- 申请人地址： JP Tokyo 100-6422 7-3, Marunouchi 2-chome Chiyoda-ku
- 代理机构： Hoffmann Eitle
- 优先权： JP2018224339 20181130
- 国际公布： WO2020110986 20200604
- 主分类号： C22C5/06
- IPC分类号： C22C5/06 ; C22C5/04 ; H01B1/02 ; H01B5/02 ; H02K13/00 ; C22C9/00 ; C22C9/02 ; C22C9/06
摘要：
The present invention provides an electrically-conductive material containing Ag in an amount of 10 mass% or more and 70 mass% or less, Pd in an amount of 30 mass% or more and 90 mass% or less, Ni in an amount of more than 5 mass% and 45 mass% or less, and inevitable impurities. A ratio of a Ni content (mass%) to a Ag content (mass%) (Ni (mass%)/Ag (mass%)) is 0.1 or more and 5.0 or less, metal structures include a AgPd alloy phase and a PdNi alloy phase, and a volume ratio of the PdNi alloy phase is 18 vol% or more and 80 vol% or less. In the present invention, Ni is added in a high concentration to a AgPd alloy, and the amount of PdNi alloy phases generated as separate phases is controlled to strengthen the entire alloy. The alloy has good processability, and an improved rigidity modulus and recrystallization property as compared to conventional alloys.