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Information × Registration Number 0303U001476, 0102U003383 , R & D reports Title Search for the methods of controlling optical properties of corundum single crystals. popup.stage_title Вивчити механізми трансформації оптичних характеристик у процесі відпалу в газових середовищах. Розробити тепловий вузол і модернізувати технічне устаткування для безградієнтного високотемпературного відпалу в газових середовищах з керованим потенціалом. Head Dan'ko Aleksandr Yakovlevich, Registration Date 20-03-2003 Organization Department of Optical and Constructional Crystals of STC <Institute for Single Crystals> popup.description2 Finished was the elaboration of the heating unit design allowed to perform a high temperature, gradintless annealing of big (up to 215х215х30 mm) elements of sapphire in the reducing atmospheres of different composition. The annealing program has been worked out. It includes (for the elimination of non-uniformity of the thermal field over crystal thickness) different velocities of increasing and lowering of temperatures in different areas. This gives a possibility to obtain resistant to the UV radiation big-size elements. Product Description popup.authors popup.nrat_date 2020-04-02 Close