Netzsch Alumina (Aluminum oxide) sample pans are the crucibles that are normally used for DSC and TGA measurements.
There sample pans (crucibles) can be reused. After mechanical cleaning, store them,if needed, in water (or possibly even in 10% hydrochloric acid) because many salts are soluble in water. Oxides form chlorides in hydrochloric acid, which can then be removed by rinsing. After drying,heat the crucibles to red heat to ensure that no weight loss occurs when they are used.