Abstract
The variation of the structural parameters, including the interplane distanced(III), the amount of tetragonal phaset, and the size of regions of coherent scattering, in the process of the tetragonal-monoclinic transformation in cooling of a ZrO2−Y2O3−Al2O3 ceramic material with a variable phase composition from the sintering temperature (1500–1700°C) is considered. It is established that the dependences of the interplane distancesd(III) on the temperature behave nonlinearly in the temperature range of the phase transformation. It is shown from the data of an x-ray analysis that the tetragonal-monoclinic phase transformation occurs in at least two stages, one of which consists in rhombic distortion of the lattice and the other of which results in formation of a monoclinic phase. The suggested model is used to construct an elementary cell of the monoclinic phase and interpret the fracture behavior of a transformation-toughened ceramic material.
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.
