critical temperature


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Related to critical temperature: critical volume, triple point

critical temperature

n.
1. The temperature above which a gas cannot be liquefied, regardless of the pressure applied.
2. The temperature at which a material becomes a superconductor.
3. The temperature at which a property of a material, such as its magnetism, changes.

critical temperature

n
(General Physics) the temperature of a substance in its critical state. A gas can only be liquefied by pressure alone at temperatures below its critical temperature
References in periodicals archive ?
However, they create a foam of carbon coal layer during a chemical reaction in the presence of fire, and they decrease heat transfer to the metallic bed but increase the time for the structure to reach its critical temperature.
With these components, formulators can determine the critical temperature before lyophilization begins, saving time and money associated with trial and error freeze dry attempts.
To provide a more profound insight into rheological properties, the critical temperature at which permanent deformation (rutting) occurs was determined according to the SHRP program [9].
Once the material is cooled below the critical temperature, the strength of these fluctuations falls and the superconductivity state takes over.
For the binders in low temperature in accordance to Superpave requirements (using BBR apparatus) value of critical temperature were determined as a temperature greater than the one corresponding to:
If the lower critical temperature is not right it will affect growth and immuno systems,'' said Mr Armstrong.
Again, there is a fairly consistent trend with the COP increasing with increasing critical temperature.
At the same ambient temperatures, it has lower COP values and because of its lower critical temperature, has limited use as an air-source heat pump.
By these methods the critical temperature for thermal cracking and the corresponding changes in permeability of oil shale are determined.
The lower critical temperature (LCT) value for cattle is the lowest temperature or windchill at which no additional energy is required to maintain core body temperature.
Bartosz Grzybowski and his team at Northwestern University, USA, have developed a new kind of sensor that can remember if it was previously heated above a certain critical temperature.
Each patient has an individual critical temperature threshold: that is, the highest temperature that elicits wheals.

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