Author/Editor     Boulc'h, Florence; Schoulder, Marie-Claude; Donnadieu, Patricia; Chaix, Jean-Marc; Djurado, Elisabeth
Title     Domain size distribution of Y-TZP nano-particles using XRD and HRTEM
Type     članek
Source     Image Anal Stereol
Vol. and No.     Letnik 20, št. 3
Publication year     2001
Volume     str. 157-61
Language     eng
Abstract     Yttria doped nanocrystalline zirconia powder was prepared by spray-pyrolysis technique. Powder crystallized into tetragonal form, as dense and compositionally homogeneous polycrystalline spheres. X-Ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM) have been used in order to characterize the mean size and the size distribution of crystalline domains. An average size of 6 nm was calculated by Scherrer formula from X-Ray diffraction pattern. The domain size, determined by analysis method developed by Hytch from HRTEM observations, ranges from 5 to 22 nm with a main population around the value 12 nm. Limits and complementary nature of XRD and HRTEM methods are discussed.
Descriptors     PARTICLE SIZE
X-RAY DIFFRACTION
MICROSCOPY, ELECTRON
IMAGE PROCESSING, COMPUTER-ASSISTED
CRYSTALLIZATION
ZIRCONIUM
YTTRIUM