Metal particle
According to this invention, provided is a metal particle that includes an intermetallic compound composed of Sn, Cu and Ni, in a basal phase that contains Sn and an Sn—Cu alloy, and at least parts of the Sn—Cu alloy and the intermetallic compound in the basal phase form an endotaxial joint.
1. A metal particle comprising an intermetallic compound composed of Sn, Cu and Ni, in a basal phase that contains Sn and an Sn—Cu alloy, at least parts of the Sn—Cu alloy and the intermetallic compound in the basal phase forming an endotaxial joint.
2. The metal particle according to claim 1 , having a particle size of 1 μm to 50 μm.
3. The metal particle according to claim 1 , comprising 0.7 to 40% by mass of Cu, 0.1 to 5% by mass of Ni, and the balance of Sn.
4. The metal particle according to claim 3 , having a particle size of 1 μm to 50 μm.