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Aging of insulating linings in aluminium electrolysis cells

Aging of insulating linings in aluminium electrolysis cells

Category
Journal publication
Abstract
Dimensional stability of materials used in aluminium electrolysis cells are important for stable cell operation. The observed compression of insulating linings from autopsies of industrial cells are in many cases much higher than would be expected from laboratory creep tests of the corresponding materials. Creep in compression of three commercial insulating materials for aluminium electrolysis cells, produced from diatomite, perlite and calcium silicate, respectively, has been studied. The creep rates were measured versus temperature and load on as received materials, after additional heat treatment, and materials contaminated with KF and NaF. Refiring the as received materials resulted in a substantial decrease in the creep rate.
Client
  • Norges forskningsråd / 236665
Language
English
Author(s)
Affiliation
  • SINTEF Industry / Sustainable Energy Technology
  • SINTEF Industry / Metal Production and Processing
Year
2017
Published in
The Minerals, Metals & Materials Series
ISSN
2367-1181
Issue
210819
Page(s)
551 - 559