Next Article in Journal
The Influence of FeO on the Reaction between Fe–Al–Ca Alloy and Al2O3–CaO–FeO Oxide during Heat Treatment at 1473 K
Next Article in Special Issue
Discrete Element Method Investigation of Bulk Density and Electrical Resistivity of Calcined Coke Mixes
Previous Article in Journal
Preparation and Properties of Microarc Oxidation Self-Lubricating Composite Coatings on Aluminum Alloy
Previous Article in Special Issue
Evolution of Anode Porosity under Air Oxidation: The Unveiling of the Active Pore Size
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Metals 2017, 7(4), 128;

A Non-Destructive Technique for the On-Line Quality Control of Green and Baked Anodes †

University Research Centre on Aluminum (CURAL)—Aluminum Research Centre (REGAL), University of Quebec at Chicoutimi, Chicoutimi, QC G7H 2B1, Canada
Author to whom correspondence should be addressed.
Academic Editor: Houshang Alamdari
Received: 13 February 2017 / Revised: 27 March 2017 / Accepted: 1 April 2017 / Published: 6 April 2017
View Full-Text   |   Download PDF [4973 KB, uploaded 6 April 2017]   |  


Carbon anodes play an important role in the electrolytic production of aluminum. They have a significant economic and environmental impact. Carbon anodes are made of dry aggregates, composed of petroleum coke, recycled rejects, and butts, bound by coal tar pitch. Due to several factors, defects (cracks/pores) appear in anodes during the fabrication process, affecting their quality. It is thus essential to control the quality of anodes before their use in the electrolysis cell. Current practice for the quality evaluation (visual inspection, core analysis) gives limited information. As an alternative to this practice, electrical resistivity measurements can be used. Electrical resistivity is one of the key indicators for anode quality and its homogeneity. A simple and non-destructive method has been developed for the specific electrical resistivity measurement of anodes (SERMA) for on-line control of anode quality. Various tests have been carried out at both lab scale and industrial scale. In this study, the electrical resistivity distributions in the lab-scale anodes were measured and compared with those of the tomography analysis. The method is able to detect defective anodes even before the baking process. View Full-Text
Keywords: carbon anodes; quality control; non-destructive method; electrical resistivity carbon anodes; quality control; non-destructive method; electrical resistivity

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Benzaoui, A.; Kocaefe, D.; Bhattacharyay, D.; Kocaefe, Y. A Non-Destructive Technique for the On-Line Quality Control of Green and Baked Anodes †. Metals 2017, 7, 128.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top