It is true that degradation at high temp is much quicker than at low temperatures but the mechanism is usually totally different compare degradation of an egg at 100c (hardens) and at 37 c (creating a chick) and at lower temp (rots. Read chapter 4 degradation mechanisms: accelerated aging of materials and structures: the effects of long-term elevated-temperature exposure.
Zirconia can assume three different crystal structures, depending on the temperature at room temperature it is monoclinic, but transforms at ∼1170 °c into a tetragonal structure and at 2370 °c becomes cubic.
Strength degradation of glass and carbon fibres at high temperature s feih1,2, e boiocchi2, the property degradation is time and temperature dependent possible kinetic with different commercial sizings  this theory will be.
The efficiency of anatase based nanopowders obtained after the calcination at temperatures in the range of 450–650 °c, as well as powders calcined at 700 and 750 °c with dominant sodium-titanate phase, has been tested in photocatalytic degradation of met and pro in order to understand different influence of synthesized photocatalysts on these compounds, fundamental structural and electronic properties of met and pro have been analyzed according to the results of detailed dft computations. Suggested citation:4 degradation mechanismsnational research council 1996 accelerated aging of materials and structures: the effects of long-term elevated-temperature exposure. Thermal degradation of polymers is molecular deterioration as a result of overheating at high temperatures the components of the long chain backbone of the polymer can begin to be broken ( chain scission ) and react with one another to change the properties of the polymer.
Kinetics of photocatalytic degradation of the most efficient photocatalysts, tl(650) for degradation of met and tl(450) for degradation of pro, was compared to the activity of tio 2 degussa p25 and undoped tio 2 synthesized under the same conditions. At high temperatures, the degradation proceeds with a noticeable speed these speeds dependent on temperature and type of polimer in different areas the temperature may vary as the speed of the degradation and its mechanism.
Degradation characteristics at temperatures below and above the polymer's glass transition temperature (tg) samples were fabricated using a solvent-casting technique and subjected to degradation in phosphate-buffered saline at the different test temperatures (t) for dif-ferent periods of time.