DSC OR Differential scanning calorimetry is a technique used to study the thermal stability of material and any temperature release or absorb during as function of heat (Temp).
To check the amorphous nature of material. there is XRD x-ray diffraction technique
No, DSC is not enough. DSC will show you melting or crystallisation peaks if the material is crystalline, but only if the temperature of melting / crystallisation belongs to the range of temperatures scanned by the device. If the corresponding temperature is out of range, you won't see anything, and you will maybe deduce that the material is amorphous. For this question, there is nothing else but XRD.
Alain
Amorphous nature is indicated by the presence of the glass transition temperature (i.e. temperature in which solid amorphous state change to "liquid" state).In DSC, the spectrum change continuously. Crystallibe nature is indicated by the presence of the melting temperature (i.e temperature in which the solid crystalline (ordered) state change to liquid (no ordered) state, and crystalline temperature. In DSC,the spectrum changes discontinuously.
Of course, XRD is the common technique. Another supporting techniques is SEM, AFM, DMA.
DSC technique is not enough but XRD completely confirm the glassy nature.
The partially crystalline glassy sample may also show glass transition and crystallization peaks in DSC. Hence observation of these peaks does not confirm 100% glassy sample. X- diffraction is a confirmatory test of glassy or amorphous substance
Thanks Prof. Thiruvengadathan and also Prof. Kumar for giving the valuable discussion about the respective question.
I agree that in many cases DSC is not enough and X-ray is very useful. On the other hand, if you have a transition from a solid to a liquid in the temperature range of your DSC, then from the presense of either a step or a peak on the DSC curve (and taking into account the peak area) you will be able to judge if the solid was crystalline or amorphous.
In DSC (differential scanning calorimetry),the equipment is designed to allow a quantitative measure of the enthalpy changes that occur in a sample as a function of either temperature or time. However DSC may use to measure the glass transition temperature,Tg in glasses. To check amorphous nature of the materials the best suitable technique is XRD measurement, where broad hump will confirm the amorphous nature.
DSC can be used to confirm amorphous nature of materials. Please refer to my research papers and book
No, it may not be ideal to confirm amorphous nature. Glass transition is a second order transition. It is mostly affected by previous thermal history. It can add some information, but confirmation is not ideal.
This link can surely give some idea,
https://www.instanano.com/2019/05/Percent-Crystallinity-Calculator-form-Differential-Scanning-Calorimetry-DSC.html