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BOCCACCINI, D. CANNIO, M. VOLKOV-HUSOVIC, T. KAMSEU, E. ROMAGNOLI, M. VERONESI, P. LEONELLI, C. DLOUHÝ, I. BOCCACCINI, A.
Original Title
Service life prediction for refractory materials
Type
journal article - other
Language
English
Original Abstract
Ultrasonic pulse velocity testing and image analysis were used to predict the thermal stability of cordierite-mullite refractories. Two compositions used as substrates in fast firing of porcelain whiteware, characterized by different microstructure and crack propagation behavior, were investigated. Fracture strength and fracture toughness values were obtained from three point bending test and chevron notched specimen technique, respectively. The measurement of the ultrasonic velocity was used to assess the material degradation with increasing number of thermal-shock cycles and specimen damage was monitored using image analysis to obtain further evidence of material degradation. The correlation between thermo-mechanical properties, ultrasonic velocity, microstructure, crack-propagation behavior and thermal-shock resistance was discussed. A remarkable similarity was found between the variation of ultrasonic velocity (when measured through the length of the refractory plates) and fracture strength with number of thermal shock cycles. Service life prediction models for refractory plates, from measured values of ultrasonic velocity and surface damage analysis, were proposed and validated.
Keywords
Refractory materials, cordierite-mullite, fracture toughness, ultrasonic pulse velocity, image analysis, service life
Authors
BOCCACCINI, D.; CANNIO, M.; VOLKOV-HUSOVIC, T.; KAMSEU, E.; ROMAGNOLI, M.; VERONESI, P.; LEONELLI, C.; DLOUHÝ, I.; BOCCACCINI, A.
RIV year
2008
Released
3. 4. 2008
Publisher
Springer
Location
USA
ISBN
0022-2461
Periodical
Journal of Materials Science
Year of study
43
Number
12
State
United States of America
Pages from
4079
Pages to
4090
Pages count
BibTex
@article{BUT48758, author="Dino {Boccaccini} and Maria {Cannio} and Tatjana {Volkov-Husovic} and Elie {Kamseu} and Marcello {Romagnoli} and Paolo {Veronesi} and Cristina {Leonelli} and Ivo {Dlouhý} and Aldo {Boccaccini}", title="Service life prediction for refractory materials", journal="Journal of Materials Science", year="2008", volume="43", number="12", pages="4079--4090", issn="0022-2461" }