Figure 2.

SEM micrographs of (a) nanocrystalline HA powders prepared by sol–gel (after route1), (b) polished cross-section of HA water vapor-assisted sintered compact (950°C for 1 h) showing a dense and uniform microstructure, (c) polished cross-section of HA/YSZ water vapor-assisted sintered compacts (950°C for 1 h), showing a tailored microstructure. The inset shows the EDX spectra acquired from the individual zirconia grains.

Vasconcelos and Barreto Nanoscale Res Lett 2011 6:20   doi:10.1007/s11671-010-9766-z