DEVICE FOR INVESTIGATION OF EQUILIBRIUM HETEROPHASE

摘要

The device is designed for the study of equilibrium heterophasic systems to form semiconductor compounds with a volatile component needed to obtain single crystals and epitaxial layers.; Traditional methods of obtaining PTX phase diagrams is extremely time-consuming and not productive. An object is to simplify the process and decrease the complexity while maintaining high measurement accuracy.; The apparatus comprises two furnaces and thermocouples. The ampoule with the crucible for melt-solution is located in the upper, high temperature furnace and a crucible with a volatile component in the lower, low-temperature furnace, which is equipped with a water cooled jacket. Crucible for solution-melt bonded with a coupling rod and the armature of the electromagnet which interacts with the magnetic core of the electromagnet, the magnetic core and windings which are located outside the water-cooled casing. At the core of reinforced crucible with a volatile component. On the outer side of the bottom of the ampoule applied conductive coating in the form of a circle, divided by the diameter which forms the armature of the variable capacitor capacitance. It is connected with the electronic device automatically adjust the current through the coil of the electromagnet with a magnet core, wherein the armature with the crucible-melt and solution are suspended, and the measured current is proportional to the weight of the suspension.; All electrical measurements made by digital devices whose readings are averaged, can be managed and processed by the computer, eliminating routine work.