| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.1 ( September 1980 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Evaluation of Thermal Shock Resistance of Refractories by Using Acoustic Emission Technique
Masato Kumagai, Ryoji Uchimura, Hisashi Kishidaka |
| Synopsis : Theoretical and experimental problems encountered in evaluating thermal shock resistance of refractories are summarized and a newly developed evaluation method using acoustic emission for detection of cracking is explained. It has been clarified that thermal shock conditions, specimen dimensions and restraining conditions, which were ignored in the previous studies, have a great influence on the thermal shock damage behavior. The evaluation based on the AE characteristics of refractories has a good correlation with actual service performance. Sufficient propriety for the evaluation is also given by the calculation of thermal stresses produced in a brick and the Hasselman's theory regarding the thermal shock damage. |
| TextiPDF: 10p./460kbj |