BrainMap

Mr. Daniel Vizman

Prof.dr.

Professor - UNIVERSITATEA DE VEST TIMISOARA

Teaching staff

Curriculum Vitae (29/04/2020)

Expertise & keywords

Control of melt flow in a directional solidification configuration using an electromagnetic field Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0789 2011 - 2016

Role in this project:

Coordinating institution: Universitatea de Vest din Timisoara

Project partners: Universitatea de Vest din Timisoara (RO)

Affiliation: Universitatea de Vest din Timisoara (RO)

Project website: http://www.physics.uvt.ro/~vizman/idei_dv

Abstract:

Bridgman-type directional solidification is the most mature technology for industrial production of multi-crystalline silicon ingots for photovoltaic applications. After melting of the starting material, crystallization occurs due to a mechanical movement of the mould or by controlled reduction of the heating power. The properties of multi-cristalline silicon, like minority carrier lifetime or diffusion length are correlated to the content and the occurrence of C, N, O and SiC-and Si3N4-precipitates in the melt and in the crystal. It is an aim of current technology development to control the impurities distribution in the mould. Recently, the interest for applying magnetic fields in directional solidification of multi-crystalline silicon increased because of the great potential of magnetic fields to control the melt flow. Present project proposed a novel method of melt control in directional solidification method. The main idea is to obtain a melt stirring in a directional solidification rectangular configuration using a special type of an electromagnetic field. The mould is placed in a vertical magnetic field and an electrical DC current passes the melt through two or more small diameter electrodes attached to the melt surface. The potential of this method to control the melt flow and impurities distribution will be studied both by numerical modeling and experimental measurements of melt flow. A model experiment will be build.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator	Download (52.5 kb) 16/04/2016
List of research grants as partner team leader
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects