A study on the interface control of vertical Bridgman crystal growth using a transparent multizone furnace

NCUIR > Engineering College > National Central University Department of Chemical & Materials Engineering > journal & Dissertation > Item 987654321/26588

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26588

Title:	A study on the interface control of vertical Bridgman crystal growth using a transparent multizone furnace
Authors:	Lan,CW;Ting,CC
Contributors:	化學工程與材料工程學系
Keywords:	DIRECTIONAL SOLIDIFICATION;STOCKBARGER TECHNIQUE;NUMERICAL-SIMULATION;GAAS GROWTH;LEC GROWTH;SEGREGATION;CONVECTION;SHAPE;GRADIENT;CONFIGURATION
Date:	1996
Issue Date:	2010-06-29 17:31:46 (UTC+8)
Publisher:	中央大學
Abstract:	A transparent computer-controlled multizone furnace is used to study the interface control of the vertical Bridgman crystal growth. Sodium nitrate is chosen as a model material. The effects of heating profiles and growth speeds on the interface shape during steady-state growth are illustrated. It is observed that the growth front becomes more concave with the increasing growth speed and with decreasing axial temperature gradients near the growth front. When a suitable combination of the growth speed and the heating profile is used, a flat or slightly convex interface can be easily obtained. Numerical simulation is also conducted, and the calculated interface shape and position under various growth conditions are in good agreement with the observed ones.
Relation:	CHEMICAL ENGINEERING COMMUNICATIONS
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	376	View/Open

社群 sharing