Crucible For Use In A Directional Solidification Furnace
a directional solidification furnace and crucible technology, applied in the direction of crystal growth process, frozen solution pulling, etc., can solve the problem that the solidification of ingots directly affects the amount of time required to form ingots, and achieve the effect of higher thermal conductivity
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first embodiment
FIGS. 2, 3, and 4 show respective top plan, cross-sectional, and enlarged views of a crucible 200 for use in any directional solidification furnace, such as the furnace 100 shown in FIG. 1. The crucible 200 has a base 206 (generally, a “second portion”) and four walls 204 extending upward from the base. The base 206 and walls 204 may be integrally formed together or joined together such that the melt 111 (FIG. 1) is contained therein. The base 206 has an upper surface 208 and a lower surface 210 and an opening 220 extending between the upper and lower surfaces.
The opening 220 is defined by a void formed in the crucible 200 that is bounded by four sides 222. In other embodiments, the opening 220 may be a shape other than rectangular, such as circular, oval, or any other suitable shape and the plate 250 placed therein is shaped accordingly. The opening 220 may be formed in the crucible 200 by machining or otherwise removing a section of base 206. In other embodiments, the opening 220 ...
second embodiment
FIGS. 5 and 6 show respective top plan and cross-sectional views of a crucible 300 for use in any directional solidification furnace, such as the furnace 100 shown in FIG. 1. The crucible 300 has a base 306 (generally, a “second portion”) and four walls 304 extending upward from the base. The base 306 and walls 304 may be integrally formed together or joined together such that the melt 111 (FIG. 1) is contained therein. The base 306 has an upper surface 308 and a lower surface 310. A recess 320 extends upward from the lower surface 310 towards the upper surface 308, but does not pass through the upper surface 308 of the base 306.
A plate 350 (generally, a “first portion”) having four sides 352 is sized for positioning within the recess 320. In other embodiments, the recess 320 and plate 250 may not be rectangular, and instead be circular, oblong, or any other suitable shape. While the embodiments herein disclose placing the plate 350 in the recess 320 in the base 306 of the crucible ...
third embodiment
FIGS. 7 and 8 show respective top plan and cross-sectional views of a crucible 400 for use in any directional solidification furnace, such as the furnace 100 shown in FIG. 1. The crucible 400 has a base 406 (generally, a “second portion”) and four walls 404 extending upward from the base. The base 406 and walls 404 may be integrally formed together or joined together such that the melt 111 (FIG. 1) is contained therein. The base 406 has an upper surface 408 and a lower surface 410.
The base 406 has a portion 450 (generally, a “first portion”) of increased thermal conductivity. While the embodiments herein disclose placing the portion 450 in the base 406 of the crucible 400, additional portions may be placed within any or all of the walls 404. Moreover, the portion 450 may not be used, and instead portions of increased thermal conductivity are placed within any or all of the walls 404.
The portion 450 includes one or more additive materials 452 that are intermixed with the material fro...
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Abstract
Description
Claims
Application Information
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