Liquidus temperature
Liquidus temperature curve in the binary SiO 2 -Li 2 O glass system based on 91 published data, compiled in SciGlass ; Model Fit from Glassproperties.com
The liquidus temperature characterizes the temperature of an alloy or a glass , below which the mixture of a homogeneous liquid phase begins to solidify. The temperature that is reached with homogeneous solidification, however, is called the solidus temperature .
In the case of alloys, the mixture between the solidus and liquidus temperature is pulpy, solid and liquid phases coexist.
The temperature interval between solidus and liquidus temperature is called the melting interval .
With pure metals and eutectic alloys, the liquidus and solidus temperatures coincide. 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 .
literature
- Günter Gottstein: Physical basics of materials science . Springer, 2001, ISBN 3-540-41961-6 .
See also
Individual evidence
- ↑ Günter Gottstein: Physical fundamentals of material science . ISBN 3-540-41961-6 , p. 101