Firmansyah
Modulus elasticity is an important material property in structural ceramic applications. However, the tasting test as a common method for determining this nature requires certain specimen preparations. In addition, the modulus of ceramic elasticity can vary because it depends on porosity content. For the structural ceramic industry, such as ceramic tiles, this property is very important. This encourages the development of new methods to increase effectiveness or verification methods as well. In this study ultrasonic testing was carried out to determine the modulus of the elasticity of the limestone soda and ceramic tiles. The experimental parameters are frequency probes (1, 2, 4 MHz). Characterization of density and porosity is also carried out for analysis. Ultrasonic testing results compared to the modulus elasticity of the texting test. The modulus elasticity of soda-lime glass based on ultrasonic testing shows excellent results with a 2.69% error for a 2 MHz probe relative to the bending test results. Testing on red and white ceramic tiles is still an error of 41% and 158% respectively. The results for red ceramic tiles show that the 1 MHz probe provides better accuracy in determining the modulus of elasticity. But testing on white ceramic tiles shows a different tendency. This is due to the porosity and near Field Effect.
Application of appropriate technology, the implementation of social care activities in the form of education / counseling / mentoring
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