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Tube Growth Furnace

A growth furnace, tube-type technology, applied in the field of tube-type growth furnaces, to achieve the effect of increasing the temperature gradient, increasing the adjustable range, and reducing the diameter of the upper furnace ring

Active Publication Date: 2017-06-06
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the deficiencies of the prior art, and provides a tubular growth furnace, which is used to solve the problem of a large temperature gradient required for the growth of some crystal crystals with a relatively large degree of supercooling

Method used

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0022] Such as figure 2 As shown, a tubular growth furnace, which includes a furnace ring 1 in a high temperature zone, a furnace ring 2 in a low temperature zone, a temperature control thermocouple 3 in a high temperature zone, a temperature control thermocouple 4 in a low temperature zone, an insulation layer 5, an upper furnace cavity 6 and The lower furnace cavity 7, the furnace ring 1 in the high temperature zone is set in the upper furnace cavity 6, the furnace ring 2 in the low temperature zone is set in the furnace ring 2 in the low temperature zone, and the heat preservation layer 5 surrounds the upper furnace On the furnace cavity 6 and the lower furnace cavity 7 , the high temperature zone temperature control thermocouple 3 is connected to the high temperature zone furnace ring 1 , and the low t...

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Abstract

The invention discloses a tubular growth furnace. Through a scheme of manufacturing a relatively large temperature gradient by combination of simple tubular furnace bodies, the tubular growth furnace comprises a heating furnace ring (an upper furnace) with a relatively small ring diameter, a heating furnace ring (a lower furnace) with a relatively large ring diameter, a gradient zone, and a corresponding thermal insulation material. The problems that a few of crystals are overlarge in supercooling degree and single crystal needs a large temperature gradient to grow are solved; the adjustable range of the temperature gradient of the furnace body is greatly improved; and a novel solving scheme is provided for growth of a few of high-quality crystals.

Description

technical field [0001] The invention relates to the technical field of crystal crystallization, in particular to a tubular growth furnace. Background technique [0002] Some crystals with large crystal undercooling, such as AgGaS2, AgGaSe2, etc., require a large temperature gradient (generally greater than 30°C) at the position of the crystal growth solid-liquid interface when growing, so as to suppress the supercooling of components and ensure as much as possible Spontaneous mononuclear growth, the ideal temperature field curve of the growth furnace is as follows figure 1 as shown, figure 1 A schematic diagram of the ideal temperature field distribution of the growth furnace is shown. The method used in the past is to grow crystals in a two-temperature zone growth furnace based on two sets of heaters. This kind of growth furnace generally uses thermal insulation materials to wrap spiral resistance wires to form a cylindrical structure. The upper and lower furnaces are mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B11/00
Inventor 方攀康彬窦云巍唐明静袁泽锐张羽尹文龙陈莹
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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