Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2012-12-01

Journal: JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION

Included Journals: ISTIC、EI、SCIE、Scopus

Volume: 27

Issue: 6

Page Number: 1089-1095

ISSN: 1000-2413

Key Words: finite element analysis; MgO single crystals furnace; temperature field; ANFIS

Abstract: The temperature field in MgO single crystal furnace is crucial to grow high-purity MgO single crystals with large sizes. In order to build proper temperature gradient, firstly finite element method (FEM) was used to study the temperature field distributions, and then a temperature controller with adaptive neurofuzzy inference system (ANFIS) was developed based on the result of FEM and practical experiences. When the temperature in MgO single crystal furnace was changed, the controller would regulate the positions of threephase electrodes and the voltage of the power simultaneously. The experimental results indicate that using the adaptive neuro-fuzzy control system can improve the quality and the quantity of the MgO single crystal production.