| Abstrakt: |
Alumina ceramics are widely used in the military as a component of ballistic covers due to their high number of mechanical properties such as strength, hardness, and wear resistance. However, alumina exhibits brittle fracture behavior which may lead to the catastrophic failure in construction. Due to that, it needs to be monitored during its lifetime. Thus, the non-destructive testing methods may be very important to ensure the safe and reliable use of these elements through non-invasive, contactless monitoring. In the frame of this work, the potential of Terahertz (THz) transmission measurements is demonstrated, and a selected application using THz systems is presented. The studies were conducted on military-designated ceramic materials at the frequency of 300 GHz. The data were next compared, with the images obtained via X-rays acting as a reference. As the results showed, there is a full agreement between the data obtained with the use of THz radiation and X-rays. This work shows the ability of THz radiation for contactless, non-destructive control of defects in alumina ceramics. [ABSTRACT FROM AUTHOR] |
