Wet gels obtained by sol-gel method were dried at different conditions. Calcination at 723 K under vacuum yielded nanocrystalline MgO powder. Structure studies were performed by X-ray diffraction, scanning and transmission electron microcopies. Electron microscopy images reveal rough, unfolded and ramified structure of solid skeleton. X-ray patterns reveal the broadened diffraction lines of periclase, the only crystalline form of magnesium oxide. The gamma crystallite size distributions were determined using FW(1/5)/(4/5)M method proposed by R. Pielaszek. The obtained values of <R> and σ (measure of polydispersity) of particle size parameters are about to 7 nm and 2 nm, respectively, whereas the average crystallite size estimated by Williamson-Hall procedure was equal to 6.5 nm. The obtained at Rietveld refinement R_wp, and S fitting parameters are the order 7.0% and 1.8, respectively, seem to be satisfactory due to the nanosize of MgO crystallites and because of the presence of amorphous phase.

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1. Initial abstract
2. 2nd abstract
3. Real Time Characterisation of nanoMaterials
4. Reliable XRD characterization in production or high-throughput laboratory regime
5. Precipitations of tungsten in quasicrystalline Al-Cu-Fe-W alloys
6. Localization of rare-earth dopants in the lattice of nanocrystalline ZrO₂ - EXAFS study
7. Structure, magnetic and dielectric properties of Bi₅Ti₃FeO₁₅ multiferroic ceramics after high energy ball milling and free sintering process.
8. Texture analysis of hot rolled Ni-Mn-Ga alloys
9. X-ray and electron microscopy techniques studies on nanocrystalline MgO powder materials prepared by sol-gel method
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11. Error bars in powder diffraction
12. Characterization of nanopowders
13. Effect of deformation on structure and mechanical behavior of plycrystalline Ni-Mn-Ga alloys
14. Microwave technique applied on the hydrothermal synthesis and sintering of calcia stabilized zirconia nanoparticles
15. The effect of γ-phase particles on microstructure and properties of Co-Ni-Ga alloys
16. Localization of rare-earth dopants in the lattice of nanocrystalline ZrO₂ - EXAFS study
17. Characterization of nanocrystalline ZrO₂ doped with Rare-Earth elements synthesized via High Pressure Hydrothermal Method
18. Structure studies on nanocrystalline MgO powders prepared by sol-gel method dried under different conditions
19. Morphology of Al doped Zinc Oxide Obtained using Hydrothermal and Vapour Condensation Methods
20. Investigations of phase composition and grain size distribution in Pr doped ZrO2
21. Morphology of Al doped zinc oxide obtained by the vapour condensation method
22. Accuracy of XRD size measurements of nanocrystals
23. Morphology of Al-Doped Zinc Oxide Obtained by the Vapour Condensation Methods
24. Application of XRD diffraction methods for determination of grain size distribution in nanoparticles
25. X-ray analysis of ground NiAl-Cr₃C₂-Al₂O₃ composite powders with nanocrystalline NiAl phase
26. Grain Size and Grain Size Distribution of Nanocrystalline Pr-doped Zirconia Powders Obtained in High Pressure Microwave Reactor
27. Measuring the Grain Size Distribution of Pr-doped Zirconia Nanopowders obtained by Microwave Driven Hydrothermal Synthesis
28. Microstructure of Ni(Cr)-Cr₃C₂ -Cr₇C₃ -TiC composite powder
29. Analytical expression for Diffraction Line Profile for polydispersive powders
30. FW1/5-4/5M method for determination of the Grain Size Distribution from powder diffraction line profile
31. Dyfrakcyjne badania mikrostruktury polikryształów nanometrowych poddawanych działaniu wysokiego ciśnienia
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33. X-Ray Characterization of Nanostructured Materials
34. Generetion and Relaxation of Strain in SiC and GaN under Extreme Pressure
35. Influence of high pressure on the polytype structure of nanocrystalline GaN
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