The relationship between thermal and elastic properties of materials

In this study, changings of ultrasonic velocity and elastic constants were examined by using ultrasonic methods depend on sintering temperature. the ceramic metal composite were formed using (WC) Ni + Co, (WC) + Ni, (WC) Ni + Mg, (TiC) + (Fe + Ni) powders. Powders placed into 15 mm radius die pressed under 360 bar pressure using a hydraulic press. Plated powders were sintered at temperature of ranging from 700°C to 1300°C under Argon shroud. Both longitudinal and transverse ultrasonic velocity measurements were done using 4MHz transducer. Longitudinal and transverse velocity and the density values were used to calculate of the elastic constant coefficient of Young Modulus (E). In this study, dependings of ultrasonic velocity and elasticity to sintering temperature were found. As a result, ultrasound velocity values and Young's Modulus parallel to the sintering temperature were found to be increased.