Vapor phase synthesis of hexagonal shaped single crystal yttria stabilized zirconia nanoparticles using CO2 laser

X-ray absorption spectroscopy based investigation of local structure in yttria stabilized zirconia nanoparticles generated by laser evaporation method: Effect of pulsed vs CW mode of laser operation

“…This feature is related with concentration of Y in samples and decreases with increasing concentration of Y. This feature is in accordance with the results of energy dispersive X-ray studies (EDX) [29]. The EDX studies showed that concentration of Y is the highest in Sample S1 and lowest in Sample S2, while Sample S3 has Y concentration in between of Samples S1 and S2.…”

“…Details of nanoparticle generation and characterization have been described elsewhere [28,29]. In short, nanoparticles of YSZ were generated by laser vaporization of pellets prepared by powder metallurgy route from powders of ZrO 2 and Y 2 O 3 .…”

“…We have earlier reported electrical impedance characterization of pellets made from nanoparticles generated by laser evaporation method [28,29]. Comparative studies were performed with respect to mode of particle generation and yttria concentration in laser generated YSZ nanoparticles.…”

“…Comparative studies were performed with respect to mode of particle generation and yttria concentration in laser generated YSZ nanoparticles. Nanoparticles were generated under two conditions: (1) the concentration of yttria (10 mol%) in the irradiated pellets was constant but irradiation conditions were different, (2) the concentration of yttria (6, 10 and 16 mol%) in the irradiated pellets was different but irradiation conditions were same [29]. Under first condition nanoparticles were generated using pulsed mode and continuous (CW) mode of laser operation and it has been observed that ionic conductivity of pellet made from nanoparticles generated under pulsed mode of laser vaporization was two orders of magnitude higher than in pellets made from nanoparticles generated under CW mode of laser vaporization [28].…”

Characteristics of selected methods for the synthesis of nanometric zirconium oxide – critical review

“…Methods of synthesis in the gaseous phase are divided into physical vapor deposition PVD [7], which involves the condensation in an inert gas [8], and chemical vapor deposition CVD [9][10][11][12]. In this method, volatile compounds are heated to form vapor, mixed and transported using a carrier gas to a substrate, on which surface crystallization of the product takes place.…”