Equipment For Preparing Zinc Selenide/zinc Sulfide Optical Material, Furnace, Heater For The Furnace

Abstract

The present invention relates to a set of equipment for preparing material according to a gas phase deposition method, wherein the equipment can be used for growth of polycrystal block material. Particularly the equipment can be adopted for preparing block composite material in which zinc selenide is used as a substrate and zinc sulfide is coated on the surface. The equipment for preparing the zinc selenide/zinc sulfide composite optical material comprises a furnace which is connected with a control panel, a vacuum system, a water cooling system and a power transformer. A heater is placed in the furnace body. The heater is internally provided with a reaction container and a heat insulation baffle plate. The furnace wall is provided with the following components: holes for communicating a ventilation system with the vacuum system, a temperature sensor, a vacuum sensor and a ventilation switch which is communicated with atomosphere. The furnace body and the furnace cover have water-cooling structures. The heater is made of graphite and has a cylindrical structure. Grooves are provided on the heater along a height direction. The thickness of the side wall of the heater is changeable. According to the equipment, technological performance and corresponding component of the equipment are mainly improved, and finally the high-quality optical material with ideal thermodynamic performance and mechanical performance is obtained.

Description

technical field [0001] The invention is aimed at the equipment for growing materials by vapor deposition method, which is used for the growth of polycrystalline bulk materials. It is especially used for the preparation of block composite materials with zinc selenide as the substrate and zinc sulfide coated on the surface. Background technique [0002] The equipment used to grow polycrystalline materials is usually a complete system in which the polycrystalline material is extracted from the gas phase by chemical or physical deposition under vacuum conditions. The main parts of this type of equipment include vacuum chambers with heating components, vacuum systems, temperature control systems and water cooling systems. [0003] On February 10, 1997, the Russian Federation issued a patent, patent number №1774675, International Patent Classification C30B23 / 00. This patent describes a container for growing polycrystalline block blanks, below which is an evaporation chamber, abo...

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