Determination of The Weibull Modulus by Electrical Breakdown and Mechanical Strength for Soda Lime Glass

Abstract

The interrelationships between mechanical and electrical properties are important to characterize one signifies the other, especially for brittle materials such as glass. The relationship between Weibull modulus from electrical breakdown and Weibull modulus from three-point bending test and other mechanical properties has been studied for soda lime glass slides. The results show that the electrical breakdown and Weibull modulus increased with the rate of rising voltage increases from 20.1-24.7 kV/mm and 10.9-13.78, respectively. The value of Weibull modulus was calculated by using mechanical strength is (12), this result identified the conditions necessary to achieve the same results in electrical breakdown strength test. Therefore, the best rate of rising voltage in the electric breakdown test is 2 kV/s which gives the same results as the mechanical tests. This means that it is possible in the future to evaluate the dielectric products electrically in terms of matching mechanical strength specifications using electrical tests.