Synthesis of TiO2-Ag Composite Powder by Spray Pyrolysis.

Abstract

Spray pyrolysis was used to fabricate TiO2-Ag composite powders for application in oxide barrier between filaments of superconducting multifilamentary tapes. The powders were prepared from an aqueous solution of TiO2 sol and AgNO3. SEM and TEM observations revealed that the average size of the synthesized powder was less than 1ƒÊm and consisted of well-dispersed fine primary particles of TiO2 and Ag. It was clearly ob served that the microstructure of the particles was altered by conditions of heat treatment.

Aerosol route in Processing of Nanostructured Functional Materials

“…The potentials of the aerosol routes for making solid-states structures at the nano size level are virtually unlimited, providing possibilities for new and unique applications in electronics, optoelectronics, catalysis, energy conversion systems, drug delivery etc. It has been reported synthesis of electrode material for solid oxide fuel cells 48,49) , phosphors 47,50) , metal-ceramic and ceramic-ceramic nanocomposite particles synthesized in environmental conditions 51,52) and under microgravity 53) . The examples of experimental set-up for the spray pyrolysis developed at the several research centers and universities are presented at Fig.…”

“…The program of controlled and sophisticated powders and films synthesis has been realized in the Institute of Technical Sciences of the Serbian Academy of Sciences and Arts (ITS SASA) since past two decades. In the framework of this research, the method of aerosol synthesis of nanophased powders T max 1000 [48][49][50] ; 4 separating heating zones, T max 1000 for the synthesis of ceramic-metal nanocomposites; 5 heating zones, T max 1200 for the synthesis of ceramic-ceramic nanocomposites 51,52) , respectively; Osaka University, JWRI (d) for the synthesis of ceramic nanoparticles under microgravity 53) (with courtesy of Dr. Ohara, Osaka University, JWRI, Japan).…”

Characteristics of nano-sized silver–glass composite powders prepared by flame spray pyrolysis

“…However, nano-sized glass powders for silver conducting films have not been well developed. Metal-metal and metal-ceramic composite powders have been extensively studied to improve the properties of pure metal powders [15][16][17][18]. However, metal-glass composite powders have not been studied well because of the different preparation process of metal and glass powders.…”

Effect of gas environment on the properties of silver–glass composite powders with core–shell structure prepared by spray pyrolysis

“…Kang). ders [8][9][10][11][12]. However, metal-glass composite powders have not been studied well because of the different preparation process of metal and glass powders.…”