Some laser-based techniques for the characterization of sintered ceramics

Some laser-based techniques for the characterization of ceramic materials fired at different temperatures are described and discussed. The first method is based on ultrasonic velocity measurements by laser generation and detection of convergent surface wave. In the second approach, the thermal parameters of the ceramic material are measured by laser-pulsed heating and infrared temperature detection. The third technique monitors the optical scattering properties of the translucent ceramic material. In all cases, a good correlation is obtained between the measured parameter and the density of the ceramic samples.Peer reviewed: YesNRC publication: Ye