Solidus temperature

The solidus temperature characterizes the temperature of an alloy , a ceramic , a rock or mineral , at and below which the substance is completely in the solid phase .

In addition, the substances mentioned also have the liquidus temperature . This is the temperature at and above which the substances are completely in the liquid phase.

The substance is pulpy between the solidus and liquidus temperature, solid and liquid phases coexist.

The temperature interval between solidus and liquidus temperature is called the melting interval .

In the case of eutectic alloys , the liquidus and solidus temperatures coincide, e.g. B. ISO BSn63Pb 178 (L-Sn63PbAg) at 178 ° C . Here the transition from solid to liquid takes place suddenly and is known as the eutectic point .

See also : peritectic , monotectic .