Effect of Colloid Zirconia on Corrosion Resistance of Low Cement Alumina Mortar under Arc Furnace Slag

مهندسی متالورژی و مواد

Article 6, Volume 31, Issue 2 - Serial Number 22, September 2020, Pages 57-68   

Document Type: Original Articles

DOI: 10.22067/ma.v31i2.68586

Authors

mostafa Ebadi¹; Esmail Salahi¹; hudsa majidian^{* 2}; aida faeghinia³

¹Materials and Energy Research centere,Tehran, Iran

²materials and energy research center

³materials and energy reearch center

Abstract

The purpose of this project is to improve the corrosion resistance of alumina base low-cement and ultra-low cement mortar against arc furnace slag. For this purpose, calcium aluminate cement was replaced by 1, 2 and 4 wt.% colloidal zirconia. Andreasen coefficient of 0.23 was chosen as a reference sample using 5% cement. Density, porosity and corrosion resistance of samples sintered at a temperature of 1620°C were measured. Microstructural investigations X-ray were also done by diffraction (XRD) and scanning electron microscopy (SEM). Results were show that the samples which contain colloidal zirconia have higher porosity lead to the more penetration of slag. Corrosion resistance was improved by 2 wt.% colloidal zirconia.

Keywords

Key words: steel; Alumina; corrosion; zirconia

Supplementary Files

6- faeghi-Revised-1.pdf

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