A Cu-Ni diffusion couple is made by joining pure Cu and pure Ni and heat treatment in inert atmosphere at 950C for 95h and subsequently quenching. EDS elemental analysis near the interface gives the concentration profile at different location on the right: - Please plot Cu concentration profile (i.e., XCu vs. y ) - Suppose concentration profile could be fitted by: y=0.002041tg(0.511728+XCu)0.005368e106.808XCu+0.11210 Please determined the location of the Matano interface (i.e., y value for the Matano interface) and plot interdiffusion diffusion coefficient D vs. Xcu A Cu-Ni diffusion couple is made by joining pure Cu and pure Ni and heat treatment in inert atmosphere at 950C for 95h and subsequently quenching. EDS elemental analysis near the interface gives the concentration profile at different location on the right: - Please plot Cu concentration profile (i.e., XCu vs. y ) - Suppose concentration profile could be fitted by: y=0.002041tg(0.511728+XCu)0.005368e106.808XCu+0.11210 Please determined the location of the Matano interface (i.e., y value for the Matano interface) and plot interdiffusion diffusion coefficient D vs. Xcu