Temperature Limit of Matter: Can it Be Reached?

[jobyts]

Is there a theoretical upper limit to the temperature attainable by any matter? May be at some extremely high temperature, those particles in the matter get converted into energy (mc^2), and that's the temperature limit of matter?

 

[Kurdt]

There is an upper limit on temperature called the Planck temperature. This is the temperature that existed at the very beginning of the universe. Beyond that temperature all particles would break down into energy.

http://physics.nist.gov/cgi-bin/cuu/Value?plktmp