Thermal shock resistance of ceramic fibre composites characterized by non-destructive methods

Alumina based ceramic fibres and alumina based ceramic were used to produce composite material. Behaviour of composite ceramics after thermal shock treatments was investigated. Thermal shock of the samples was evaluated using water quench test. Surface deterioration level of samples was monitored by...

Full description

Saved in:
Bibliographic Details
Published inProcessing and Application of Ceramics Vol. 2; no. 2; pp. 115 - 119
Main Authors Dimitrijevic, M., Posarac, M., Jancic-Heinemman, R., Majstorovic, J., Volkov-Husovic, T., Matovic, B.
Format Journal Article
LanguageEnglish
Published University of Novi Sad 01.12.2008
Subjects
Alumina fibres
Ceramic matrix composites
Image analysis
Thermal shock resistance
Ultrasonic velocity
Online AccessGet full text

Cover

More Information
Summary:Alumina based ceramic fibres and alumina based ceramic were used to produce composite material. Behaviour of composite ceramics after thermal shock treatments was investigated. Thermal shock of the samples was evaluated using water quench test. Surface deterioration level of samples was monitored by image analysis before and after a number of quenching cycles. Ultrasonic measurements were done on samples after quench tests. Dynamic Young modulus of elasticity and strength degradation were calculated using measured values of ultrasonic velocities. Strengths deterioration was calculated using the non-destructive measurements and correlated to degradation of surface area and number of quenches. The addition of small amount of ceramic fibres improves the strengths and diminishes the loss of mechanical properties of samples during thermal shock experiments.
ISSN:1820-6131
2406-1034
DOI:10.2298/PAC0802115D