Distilled Scandium Metal
It is a soft, white metal with silver tones that, when exposed to air, promotes the formation of a white nitride layer and, when exposed to water, burns, producing a flame with yellow and red tones.
It is the twenty-first element of the periodic table and the first element of the transition group in the first long period; it has the isotopes 40 Sc and 51 Sc, as well as an intermediate value isotope known as 45 Sc; all of these isotopes are produced as a result of nuclear reactions.
Scandium (Sc) doped aluminum nitride (AlN) is a kind of piezoelectric material widely used in radio frequency filters, ultrasonic sensors, oscillators and other devices. It can replace the conventional aluminum nitride (AlN) piezoelectric material used in internal radio frequency filters of mobile phones and fingerprint readers under ultrasonic screens. By introducing scandium (Sc) into AlN, the electromechanical coupling and piezoelectric coefficient of the material can be improved, thus achieving a more efficient conversion of mechanical energy to electrical energy. For the future production of higher efficiency of radio frequency equipment and higher sensitivity of fingerprint identification equipment to lay a foundation.
- Scandium metal can be prepared by reducing the fluoride with calcium metal. It can also be prepared by electrolysing molten potassium, lithium and scandium chlorides, using electrodes of tungsten wire and molten zinc.
