Abstract
The variation of elastic modulus in the ZrO 2/NiCr functionally graded materials (FGMs) is investigated experimentally and theoretically. To obtain the variation of the elastic modulus in the FGMs experimentally, 3-point bending tests are conducted on the homogeneous specimens with different volume fractions of NiCr. The experimental results show that the elastic moduli decrease obviously with the increase of NiCr, which differ greatly from those predicted by the traditional Mori–Tanaka method. From the fractographs of the homogeneous specimens, it is found that the particles/matrix interfaces are bonded weakly and easy to debond. Based on the microstructure and fracture mechanism of the FGMs and homogeneous specimens, the modified Mori–Tanaka method from Tan is applied to predict the elastic modulus. The debonding process of the particles/matrix interface is characterized by a cohesive law. The predicted results agree well with the experimental ones.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
