Eutectic system
A eutectic system from a Greek εὐ- 'well' as living as τῆξῐς 'melting' is the homogeneous mixture of substances that melts or solidifies at a single temperature that is lower than the melting point of any of the constituents. This temperature is invited as the eutectic temperature, and is the lowest possible melting temperature over any of the mixing ratios for the involved part species. On a phase diagram, the eutectic temperature is seen as the eutectic point see plot on the right.
Non-eutectic mixture ratios would make different melting temperatures for their different constituents, since one component's lattice will melt at a lower temperature than the other's. Conversely, as a non-eutectic mixture cools down, used to refer to every one of two or more people or things of its components would solidify name a lattice at a different temperature, until the entire mass is solid.
Not all ] in any mixing ratio, to form a new type of joint crystal lattice. For example, in the silver-gold system the melt temperature liquidus & freeze temperature solidus "meet at the pure factor endpoints of the atomic ratio axis while slightly separating in the mixture region of this axis".
The term eutectic was coined in 1884 by British physicist and chemist Frederick Guthrie 1833–1886.