"upper temperature limit" is a correct and usable phrase in written English.
You could use it in a sentence like: "The laboratory has an upper temperature limit of 100 degrees Celsius."
The importance of setting an upper temperature limit is also backed by Archbishop Desmond Tutu, writing in the Observer.
Its ability to combine three different materials into intricate patterns, however, depends on separate control of the temperature of each material (the upper temperature limit is 350 ºC).
Thus, the application of aluminide coatings may increase the upper temperature LIMIT of this steel.
This leads to the existence of an upper temperature limit above which shear band formation appears unlikely.
The ternary eutectic system demonstrated excellent thermal stability below 650 °C, which was defined as the upper temperature limit of the ternary system.
For safety reasons an upper temperature limit is included in the requirements for refillable hydrogen tanks (ISO 15869) which sets the limit for any fill optimization.
Nguyen, K. D. T. et al. Upper temperature limits of tropical marine ectotherms: global warming implications.
"Direct microscopic observation indicated that micro-organisms were attached to mineral surfaces throughout the structure," they wrote, adding that the discovery suggested that further research would expand "the known upper temperature limits of life".
Directed evolution can also be used to probe the boundaries of protein function, for example, the role of protein stability in setting the upper temperature limits for life.
These are most likely dictated by optimal feeding substrate, avoidance of daytime visual predators, requirements for resting periods at 200 m to regain neutral buoyancy, upper temperature limits of around 25°C and implosion depths of 800 m.
In contrast to the El Coquito spring, microbes in Crater Hills and Norris Geysers Basin adopted non-photosynthetic carbon assimilation pathways (reductive citrate cycle), apparently because water temperatures of these springs (>65 °C) approached upper temperature limits for photosynthesis [ 19].
