Effect of Li addition on the formation of Na-β/βʹʹ-alumina film by laser chemical vapor deposition
Source abstract
Abstract
Abstract Films composed of a mixture of Na-β- and βʹʹ aluminas (β/βʹʹ-alumina) were prepared via laser chemical vapor deposition (CVD) upon the addition of Li. The effect of the Li source gas on the phase formation, microstructure and deposition rates of the β/βʹʹ-alumina films was investigated. The Na-β/βʹʹ-alumina films were formed at a Li/Al precursor supply ratio ( R Li/Al ) of 0.1–1.0 within a deposition temperature ( T dep ) range of 1100–1220 K. The Na-β/βʹʹ-alumina phase was exclusively formed at T dep =1165–1185 K and R Li/Al =0.1–0.5, whereas α-Al 2 O 3 (with minor amounts of LiAlO 2 and LiAl 5 O 8 ) was predominantly observed at T dep >1223 K and R Li/Al >1.0. The Na-β/βʹʹ-alumina films were composed of polygonal facets in sizes of several hundred nanometers with a columnar cross section. The deposition rate of the Na-β/βʹʹ-alumina film was 60 µm h −1 .
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Thermal Expansion and Ionic Conductivity · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Hot isostatic pressing of beta-alumina10.1007/BF00552321 ↗
2. Preparation, ion transport, and spectroscopy of Eu(II) and Eu(III) betaʹʹ alumina10.1016/0167-2738(83)90246-1 ↗
3. Advanced materials for sodium-beta alumina batteries: status, challenges and perspectives10.1016/j.jpowsour.2009.11.120 ↗
4. An analysis of the impedance of polycrystalline beta-alumina10.1149/1.2134183 ↗
5. Crystal chemistry of hexaaluminates: β-alumina and magnetoplumbite structures10.1016/0022-4596(89)90048-0 ↗
6. On the structures of alkali polyaluminates10.1246/bcsj.41.93 ↗
7. The crystal structure of Na2O·MgO·5Al2O3 with reference to Na2O·5Al2O3 and other isotypal compounds10.1021/j100726a024 ↗
8. Sudworth · 1985
9. The crystal structure of ‘beta alumina’ Na2O·11Al2O310.1524/zkri.1937.97.1.59 ↗
10. Ion exchange properties of and rates of ionic diffusion in beta-alumina10.1016/0022-1902(67)80301-4 ↗
11. The phase relationship of Na+-beta-aluminas synthesized by a sol-gel process in the ternary system Na2O–Al2O3–Li2O
12. Preparation and structure of Li-stabilized Na+β″-alumina single crystals10.1016/S0167-2738(88)80054-7 ↗
13. Resistivity-microstructure relations in lithia-stabilized polycrystalline β″-alumina10.1111/j.1151-2916.1978.tb09292.x ↗
14. Relative effects of phase conversion and grain size on sodium ion conduction in polycrystalline lithia-stabilized β-alumina10.1111/j.1151-2916.1978.tb09238.x ↗
15. Relation of properties to microstructure in β″-alumina ceramic10.1111/j.1151-2916.1974.tb11401.x ↗
16. Beta-alumina electrolyte for use in sodium/sulphur batteries: part 1. fundamental properties10.1016/0378-7753(81)80020-1 ↗
17. Beta-alumina electrolyte for use in sodium/sulphur batteries: part 2. manufacture and use10.1016/0378-7753(81)80059-6 ↗
18. Preparation of sodium beta′′-alumina electrolyte thin film by electrophoretic deposition using Taguchi experimental design approach10.1016/j.electacta.2014.05.096 ↗
19. Sodium beta-alumina thin films as gate dielectrics for AlGaN/GaN metal-insulator-semiconductor high-electron-mobility transistors10.1088/1674-1056/21/12/126102 ↗
20. Elaboration and optimization of amorphous Na–Al–O thin films10.1016/0167-2738(92)90147-H ↗
21. Preparation of Na-beta′′-alumina film by tape casting process10.1016/j.jeurceramsoc.2009.04.019 ↗
22. Solid phase growth and characterization of β-aluminates films on α-Al2O3 and relative supports10.1016/S0167-2738(97)00510-9 ↗
23. Stereography of growth of β′′-Al2O3 single crystal films from sapphire substrates10.1016/S0167-2738(96)83004-9 ↗
24. The deposition of Na-β′′-Al2O3 by vapour–vapour reaction10.1016/S0167-2738(97)00256-7 ↗
25. Preparation of Na-β-alumina films by laser chemical vapor deposition10.1016/j.surfcoat.2015.06.019 ↗
26. Preparation of Na–Al–O films by laser chemical vapor deposition Mater
27. VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data10.1107/S0021889811038970 ↗
28. Preparation of Li–Al–O films by laser chemical vapor deposition10.1016/j.matchemphys.2013.11.044 ↗
29. Preparation of cubic and tetragonal Li7La3Zr2O12 film by metal organic chemical vapor deposition10.1016/j.tsf.2014.11.094 ↗
30. X-ray-scattering study of the fast-ion conductor βʹʹ-alumina10.1103/PhysRevB.22.5912 ↗
31. Crystal structure of Na2O·MgO·5Al2O3 with reference to Na2O·5Al2O3 and other isotypal compounds10.1021/j100726a024 ↗
32. Li and Mg stabilized beta aluminas10.1016/0167-2738(81)90218-6 ↗
33. Preparation and structure of Li-stabilized Na+β″-alumina single crystals10.1016/S0167-2738(88)80054-7 ↗