Synthesis and microstructure of 1.6Nb2O5-3Y2O3-ZrO2 nanosized powders produced by a hydrothermal process

• Published in: Journal of materials science letters Vol. 22; no. 10; pp. 735 - 736
• Main Authors: BAE, Dong-Sik, KIM, Eun-Jung, KIM, Dae-Joon, HAN, Kyong-Sop
• Format: Journal Article
• Language: English
• Published: Dordrecht Kluwer Academic Publishers 15.05.2003
• Subjects: Chemistry; Clusters, nanoparticles, and nanocrystalline materials; Colloidal state and disperse state; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; General and physical chemistry; Materials science; Nanoscale materials and structures: fabrication and characterization; Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals; Physics; Powders; Structure of solids and liquids; crystallography; Ternary systems; Transition element compounds; Oxides; XRD; High temperature; Experimental study; Ultrafine powder; Hydrothermal synthesis; Chemical preparation; Niobium oxides; Zirconium Oxides; Microstructure; Nanostructured materials; Nanocrystal; Yttrium oxides
• ISSN: 0261-8028
• DOI: 10.1023/A:1023791623997

1.6Nb2O5-3Y2O3-ZrO2 nanosized powders were prepared under high temperature and pressure conditions by precipitation from metal nitrates with aqueous potassium hydroxide. Spherical powder was obtained at 185 C and 6 h. The average size and size distribution of the synthesised particles were below 7 nm and narrow, respectively. The XRD pattern shows that the synthesised particles were crystalline. It is shown that the synthesis of the nanosized crystalline particles is possible under hydrothermal conditions in aqueous solution. 11 refs.