I have synthesized metal oxide nanoparticles in such a way that it doesn't change its phase even more than 6 months ( by observation). I want to substantiate it by experiment data. That's why I performed DSC . I have not seen in papers doing DSC for metal oxide yet. ( seen in case of polymers only) and also I am not getting the expected results. So what does it mean . whether the method I have chosen to substantiate the stability is not the apt one? If someone know any other. method please help me