Detail publikačního výsledku
Scanning electron microscopy study of carbon induced corrosion of fired refractory castable
PTÁČEK, P.; OPRAVIL, T.; ŠOUKAL, F.; WASSERBAUER, J.; HAVLICA, J.; BRANDŠTETR, J.
Original Title
Scanning electron microscopy study of carbon induced corrosion of fired refractory castable
English Title
Scanning electron microscopy study of carbon induced corrosion of fired refractory castable
Type
Chapter in a book
Original Abstract
The mechanism and the course of high temperature corrosion of refractory castable based on alumina cement and mullite aggregate was investigated by scanning electron microscopy (SEM) and high temperature X-ray diffraction (HT-XRD). The low carbon monoxide resistance leads to the material failure at temperatures significantly lower than it can be supposed from the used raw materials. The carbon stored in the refractory material as the consequence of equilibrium Boudouard - Bell reaction is concentrated in the matrix – the opening material interface where the low temperature eutectic melts under reduction condition were formed. In paradox the grain of opening material considered as the temperature more resistant phase is dissolved at first and it forms the melts penetrating the matrix, hence the opening materials grain is replaced by cavity.
English abstract
The mechanism and the course of high temperature corrosion of refractory castable based on alumina cement and mullite aggregate was investigated by scanning electron microscopy (SEM) and high temperature X-ray diffraction (HT-XRD). The low carbon monoxide resistance leads to the material failure at temperatures significantly lower than it can be supposed from the used raw materials. The carbon stored in the refractory material as the consequence of equilibrium Boudouard - Bell reaction is concentrated in the matrix – the opening material interface where the low temperature eutectic melts under reduction condition were formed. In paradox the grain of opening material considered as the temperature more resistant phase is dissolved at first and it forms the melts penetrating the matrix, hence the opening materials grain is replaced by cavity.
Keywords
Refractory castable; unshaped refractory; corrosion; carbon monoxide resistance, scanning electron microscopy; high temperature X-ray diffraction
Key words in English
Refractory castable; unshaped refractory; corrosion; carbon monoxide resistance, scanning electron microscopy; high temperature X-ray diffraction
Authors
PTÁČEK, P.; OPRAVIL, T.; ŠOUKAL, F.; WASSERBAUER, J.; HAVLICA, J.; BRANDŠTETR, J.
RIV year
2013
Released
03.12.2012
Publisher
Formatex Research Center
Location
Formatex Research Center 06002 Badajoz Spain
ISBN
978-84-939843-6-6
Book
Current microscopy contributions to advances in science and technology, Microscopy Series N 5, Edited by A. Méndez-Vilas
Edition
Spain 2012
Pages from
1044
Pages to
1051
Pages count
8
Full text in the Digital Library
BibTex
@inbook{BUT97195,
author="Petr {Ptáček} and Tomáš {Opravil} and František {Šoukal} and Jaromír {Wasserbauer} and Jaromír {Havlica} and Jiří {Brandštetr}",
title="Scanning electron microscopy study of carbon induced corrosion of fired refractory castable",
booktitle="Current microscopy contributions to advances in science and technology, Microscopy Series N 5, Edited by A. Méndez-Vilas",
year="2012",
publisher="Formatex Research Center",
address="Formatex Research Center
06002 Badajoz
Spain",
series="Spain 2012",
edition="1",
pages="1044--1051",
isbn="978-84-939843-6-6"
}