VTechWorks staff will be away for the winter holidays starting Tuesday, December 24, 2024, through Wednesday, January 1, 2025, and will not be replying to requests during this time. Thank you for your patience, and happy holidays!

Center for Energy Harvesting Materials and Systems (CEHMS)

Permanent URI for this community

https://hdl.handle.net/10919/112356

Browse

Browsing Center for Energy Harvesting Materials and Systems (CEHMS) by Department "Biomedical Engineering and Mechanics"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Large piezoresistivity phenomenon in SiCN-(La,Sr)MnO3 composites
    Karmarkar, Makarand; Singh, Gurpreet; Shah, Sandeep; Mahajan, Roop L.; Priya, Shashank (AIP Publishing, 2009-02-01)
    We present the results on SiCN-(La,Sr)MnO3 (LSMO) composites correlating the observed large piezoresistance behavior with the microstructural features and defect chemistry. Scanning electron microscopy characterization revealed the presence of self-assembled periodic microvalleys in the microstructure with width of 1-5 mu m and depth of 600-1000 nm. The microvalleys act as stress concentration points providing change in volume with applied stress. High resolution transmission electron microscopy measurements conducted on composites showed that LSMO grains consist of SiCN phase but no inclusions were observed.