Modification of the Cationic Composition of LiNbO3 and LiTaO3 Nanopowders in Calcium-Containing Chloride Melts
| Autor: | V. N. Dokutovich, V. A. Khokhlov, B. D. Antonov, I. D. Zakir’yanova, N. A. V’yugin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope 020502 materials Inorganic chemistry Lithium niobate Metals and Alloys chemistry.chemical_element Ionic bonding 02 engineering and technology Chloride chemistry.chemical_compound symbols.namesake 0205 materials engineering chemistry Lithium tantalate medicine symbols Lithium Raman spectroscopy Spectroscopy medicine.drug |
| Zdroj: | Russian Metallurgy (Metally). 2020:144-149 |
| ISSN: | 1555-6255 0036-0295 |
| DOI: | 10.1134/s0036029520020081 |
| Popis: | The ionic compositions of lithium metaniobate and metatantalate nanopowders are modified in calcium-containing chloride melts. The reaction products are studied by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, and elemental chemical analysis. The results of the studies show that the surface layer of the modified small-size particles of the lithium niobate or lithium tantalate powders is enriched in calcium metaniobate or metatantalate (CaNb2O6 or CaTa2O6) formed due to the isomorphic heterovalent substitution of calcium ions for lithium ions in molten LiCl–CaCl2 and KCl–CaCl2 mixtures at 700 and 750°C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink