All materials should stop all radiations when temperature is below 1.6 Kelvin. All materials naturally begin to become non solid, when temperature is above 405414 Kelvin. All materials naturally begin to become radioactive materials that begin radiation, when temperature is above 40541400000 Kelvin.

In particular, unless some external force acts (or energy is applied), there is a temperature Ts such that there is no material in solid nature when its temperature is more than Ts, and there is a temperature Te such that all matters should become energy when its temperature is more than Te.

These are implications from discussions of my article attached, which is about second order derivative of Planck’s distribution. Since I do not know whether there is any other method to derive similar conclusions, this question is posed.