Insulation barrel for crystal growing thermal field
A technology of crystal growth and heat preservation barrel, applied in the direction of crystal growth, single crystal growth, polycrystalline material growth, etc., can solve the problems of difficult to grasp the displacement accuracy, the heat preservation effect is not obvious, affecting the crystal growth environment, etc. effect, reduce energy loss, and ensure the effect of the production environment
Active Publication Date: 2014-01-22
湖北蓝晶元光电科技发展有限公司
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Problems solved by technology
However, with this method, the insulation effect of the single-layer insulation structure is not obvious; moving the insulation bucket or crucible affects the growth environment of the crystal, and the accuracy of the displacement is difficult to grasp
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[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] Such as figure 1 , image 3 As shown, the thermal field insulation for crystal growth of the present invention includes an outer insulation screen 10 and an inner insulation screen 20, an insulation interlayer is arranged between the outer insulation screen 10 and the inner insulation screen 20, and a plurality of straight rods are arranged in the insulation interlayer 30. The upper ring 40 and the lower ring 50, the upper ring 40 is located above the plurality of straight rods 30, the lower ring 50 is located below the plurality of straight rod...
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Abstract
The invention discloses an insulation barrel for crystal growing thermal field. The insulation barrel comprises an outer insulation screen and an inner insulation screen which are made of tungsten, molybdenum or a composite of tungsten and molybdenum, and an insulation interlayer is arranged between the outer insulation screen and the inner insulation screen. According to the technical scheme, the insulation effect is strengthen by the adoption of a structure with double insulation screens (the outer insulation screen and the inner insulation screen) and the arrangement of the insulation interlayer between the two insulation screens, therefore the high temperature environment of crystal production; since the outer insulation screen and the inner insulation screen are made of tungsten, molybdenum or a composite of tungsten and molybdenum, the advantages of high melting point and good heat conduction performance of tungsten, molybdenum and other materials, and further the crystal production environment is ensured and the energy loss is reduced; since the height of a straight rod in the insulation interlayer is adjustable, the height of the straight rod in the insulation interlayer can be set in advance according to the growth requirement of crystals, and the expectant crystal growth temperature curve can be reached.
Description
technical field [0001] The invention relates to artificial crystal production equipment, in particular to a crystal growth thermal field insulation barrel. Background technique [0002] In crystal growth, the control of temperature gradient is very important, and controlling the temperature gradient of the thermal field is the key to growing high-quality crystal materials. Different crystal materials and different growth methods require different temperature gradients, and temperature gradients have become one of the key technologies for growing high-quality crystals. Traditional heat preservation barrels mostly use a single-layer heat preservation device, and by moving the heat preservation barrel or crucible up and down, the relative displacement of the heat preservation barrel and the crucible is obtained, thereby obtaining the temperature gradient required for crystal production. However, with this method, the single-layer heat preservation structure has no obvious heat...
Claims
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IPC IPC(8): C30B35/00C30B11/00C30B28/06C30B21/02B32B15/01
Inventor 黄小卫赵慧彬叶长圳
Owner 湖北蓝晶元光电科技发展有限公司