Abstract
Ferroelectric crystals of lead hydrogen phosphate (LHP) have been synthesized using the controlled diffusion of lead nitrate into a set gel containing orthophosphoric acid. The variation in the microhardness of LHP crystals has been determined using a Vickers microhardness indentor. The effects of annealing and quenching on the mechanical properties of these crystals have been studied. It is observed that (i) the microhardness of the crystals depends on the applied load and is independent of the duration of loading, (ii) irrespective of the relative orientation of the indentor and the crystal, the median vents initiate at the sharp indentation edges, and (iii) maximum plasticity is observed in quenched crystals. The mechanical behaviour of the crystals has been studied using an Instron compression testing unit. A large anisotropy is observed from experiments on the breaking strength of the crystals and the implications are discussed.
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.
