Influence of sintering parameters on microstructure and electrical conductivity of La10Si6O27 ceramics
Source abstract
Abstract
Abstract La10Si6O27 ceramics powders were synthesized via the high temperature solid state reaction, and were then pressureless-sintered to obtain dense bulk ceramics by adjusting the sintering parameters. Crystal structure and electrical conductivity of La10Si6O27 ceramics were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy and complex impedance analysis. La10Si6O27 ceramics obtained at sintering parameters of 1923 K and 10 h has the highest electrical conductivity of 1.28×10−2 S cm−1 at test temperature of 1073 K. Sintering temperature have a distinct effect on the bulk density of samples and the content of La2SiO5 second phase. The content of La2SiO5 second phase is inversely proportional to electrical conductivity of as-sintered samples, while the bulk density is directly proportional to electrical conductivity of La10Si6O27 ceramics.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Advanced ceramic materials synthesis · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. Apatite germanates doped with tungsten: synthesis, structure, and conductivity10.1039/C0DT00690D ↗
2. Novel two-step processing route combining mechanical alloying and microwave hybrid sintering to fabricate dense La9.33Si2Ge4O26 for SOFCs10.1016/j.jpowsour.2012.12.101 ↗
3. Energetics of lanthanum silicate apatite: influence of interstitial oxygen and cation vacancy concentrations in La9.33+x(SiO4)6O2+3x/2 and La10–xSrx(SiO4)6O3–0.5x10.1016/j.ssi.2012.12.012 ↗
4. Growth of single-crystals of apatite-type oxide ionic conductor from sintered ceramics by a seeding method10.1016/j.jeurceramsoc.2012.09.013 ↗
5. Preparation of dense silicate electrolyte coating with low pressure plasma spraying and very low pressure plasma spraying for intermediate-temperature solid oxide fuel cells10.1016/j.jpowsour.2012.09.034 ↗
6. Low temperature crystal structures of apatite oxygen–conductors containing interstitial oxygen10.1039/B616211H ↗
7. Electrical properties of La10Si6O27-based oxides10.1016/j.ssi.2008.02.037 ↗
8. Oxide ionic conductivity of apatite type Nd9.33(SiO4)6O2 single crystal10.1016/S0955-2219(98)00215-5 ↗
9. Water incorporation studies in apatite-type rare earth silicates/germinates10.1016/j.ssi.2008.12.014 ↗
10. Synthesis and conductivities of the Ti doped apatite-type phases (La/Ba)10–x(Si/Ge)6–yTiyO26+z10.1016/j.ssi.2005.04.029 ↗
11. Perspectives of neutron scattering on proton conducting oxides10.1039/C2DT31891A ↗
12. Crystal structure, electrical conductivity and thermal expansion of Ni co-doped LaCoO310.1039/C2DT32399K ↗
13. Microwave plasma synthesis of lanthanide zirconates from microwave transparent oxides10.1039/c2dt12269c ↗
14. Infrared to visible up-conversion emission in Er3+/Yb3+ codoped fluoro-phosphate glass–ceramics10.1111/jace.12109 ↗
15. Experimental phase diagram determination and thermodynamic assessment of the CeO2–Ga2O3–CoO system10.1111/jace.12004 ↗
16. The influence of CaO on structure and electrical conductivity of pyrochlore-type Sm2Zr2O710.1016/j.jpowsour.2008.12.136 ↗
17. Effect of Gd and Yb co-doping on structure and electrical conductivity of the Sm2Zr2O7 pyrochlore10.1016/j.jpowsour.2010.05.064 ↗
18. Electrical properties of gadolinium–europium zirconate ceramics10.1111/j.1551-2916.2009.03505.x ↗
19. Ionic conductivity across the disorder–order phase transition in the SmO1.5–CeO2 system10.1016/j.jeurceramsoc.2012.05.009 ↗
20. Cellulose templating method for the preparation of La0.8Sr0.2Ga0.83Mg0.17O2.815 (LSGM) solid oxide electrolyte10.1016/j.jeurceramsoc.2013.01.016 ↗
21. Crystal structure and oxide-ion conductivity along c-axis of apatite-type lanthanum silicate with excess oxide ions10.1021/cm3034643 ↗
22. Defect chemistry and oxygen ion migration in the apatite-type materials La9.33Si6O26 and La8Sr2Si6O2610.1039/b302748c ↗
23. Solid state 29Si NMR studies of apatite-type oxide-ion conductors10.1039/b600122j ↗
24. Developing apatites for solid oxide fuel cells: insight into structural, transport and doping properties10.1039/b704426g ↗
25. Mineralogical characterization of ceramic tiles prepared by a mixture of cretaceous and mio-pliocene clays from tunisia: factory and laboratory products10.2109/jcersj2.119.93 ↗
26. The effect of silver doping on the critical current density of Bi–Pb–Sr–Ca–Cu–O ceramic superconductor10.1002/pssc.200567011 ↗
27. Development and dielectric properties of Ba2–xSrxDyTaO6 (x=0, 1, and 2) substrates for YBa2Cu3O7–δ films10.1006/jssc.1997.7524 ↗
28. Magnetic and transport critical current density of laser-irradiated Sm–Ba–Cu–O superconductor at 4.2K10.1007/BF00617807 ↗
29. Synthesis and characterization of doped La9ASi6O26.5 (A=Ca, Sr, Ba) oxyapatite electrolyte by a water-based gel-casting route10.1016/j.ijhydene.2011.02.123 ↗
30. Raman spectra of apatites: La10–xSi6–y(Al, Fe)yO26±δ10.1002/jrs.1569 ↗
31. Raman and 29Si NMR spectroscopic characterization of lanthanum silicate electrolytes: emphasis on sintering temperature to enhance the oxide-ion conductivity10.1016/j.electacta.2009.07.086 ↗
32. Effect of oxygen content on the 29Si NMR, Raman spectra and oxide ion conductivity of the apatite series, La8+xSr2–x(SiO4)6O2+x/210.1039/b809062a ↗
33. Indentation deformation and microcracking in β-Si3N4-based nanoceramic10.1111/j.1551-2916.2012.05080.x ↗
34. Influence of synthesis route and composition on electrical properties of La9.33+xSi6O26+3x/2 oxy-apatite compounds10.1016/j.ssi.2008.04.035 ↗
35. Preparation of aluminium lanthanum oxyapatite tapes, La10AlSi5O26.5, by tape casting and reaction sintering10.1016/j.jeurceramsoc.2011.03.023 ↗