Synthesis of Cr2O3 nanoparticles by mechanochemical processing
Source abstract
Abstract
Abstract The synthesis of chromium oxide (Cr 2 O 3 ) nanoparticles by mechanochemical reaction and subsequent heat treatment was investigated. A solid-state displacement reaction Na 2 Cr 2 O 7 +S→Cr 2 O 3 +Na 2 SO 4 was induced during mechanical milling of Na 2 Cr 2 O 7 +S powder mixture, forming amorphous Cr 2 O 3 nanoparticles. Annealing the as-milled powder under vacuum above 520°C resulted in the formation of crystalline Cr 2 O 3 nanoparticles separated from each other in a salt matrix. A simple washing process to remove the matrix yielded Cr 2 O 3 particles of 10–80 nm in size, having a plate-like morphology.
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Research context
OpenAlex topics: Pigment Synthesis and Properties · X-ray Diffraction in Crystallography · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Hua · J. Propul. Technol. · 1992 · 58 · 47
2. Berdahl · Trans. ASME J. Heat Transfer · 1995 · 117 · 35510.1115/1.2822529 ↗
3. Kitsunai · Wear · 1991 · 151 · 27910.1016/0043-1648(91)90255-S ↗
4. Pawlowski · Powder Metall. Int. · 1991 · 23 · 57
5. Balachandran · Nanostruct. Mater. · 1995 · 5 · 50510.1016/0965-9773(95)00266-H ↗
6. Qwnby · J. Am. Ceram. Soc. · 1972 · 55 · 43310.1111/j.1151-2916.1972.tb11334.x ↗
7. Peters · Mater. Chem. Phys. · 1998 · 55 · 19710.1016/S0254-0584(98)00121-7 ↗
8. Kern · Mater. Chem. Phys. · 1989 · 21 · 39110.1016/0254-0584(89)90140-5 ↗
9. Matunawa · Trans. Jap. Weld. Res. Inst. · 1990 · 19 · 137
10. Chatterjee · Mater. Lett. · 1995 · 25 · 26110.1016/0167-577X(95)00179-4 ↗
11. Kawabata · J. Am. Ceram. Soc. · 1995 · 78 · 227110.1111/j.1151-2916.1995.tb08655.x ↗
12. Vollathm · Mater. Lett. · 1996 · 29 · 27110.1016/S0167-577X(96)00158-9 ↗
13. Zhu-Yingjie, Qian-Yitai and Zhang-Manwei, Mater. Sci. Engng, 1996, B41, 294.10.1016/S0921-5107(96)01654-6 ↗
14. McCormick · 1996 · Vol. 1 · 85
15. Schaffer · Mater. Forum · 1992 · 16 · 91
16. Ding · Appl. Phys. Lett. · 1995 · 67 · 380410.1063/1.115389 ↗
17. Ding · J. Alloys Comp. · 1996 · 234 · L110.1016/0925-8388(95)02138-8 ↗
18. Ding · J. Phys. D: Appl. Phys. · 1996 · 29 · 136510.1088/0022-3727/29/9/020 ↗
19. Ding · J. Am. Ceram. Soc. · 1996 · 79 · 295610.1111/j.1151-2916.1996.tb08731.x ↗
20. Ding · Nanostruct. Mater. · 1997 · 8 · 7510.1016/S0965-9773(97)00067-6 ↗
21. Ding · Nanostruct. Mater. · 1997 · 8 · 73910.1016/S0965-9773(97)00221-3 ↗
22. Ding · Physica B · 1997 · 239 · 37810.1016/S0921-4526(97)00353-0 ↗
23. Tsuzuki · J. Alloys Comp. · 1998 · 281 · 14610.1016/S0925-8388(98)00806-8 ↗
24. Tsuzuki · Nanostruct. Mater. · 1999 · 11 · 12510.1016/S0965-9773(99)00025-2 ↗
25. Tsuzuki, T. and McCormick, P. G., Mater. Sci. Forum, 1999, 315–317, 586, in Rare Earths '98, Proceedings of the International Conference on Rare Earths, Fremantle, Western Australia, October 1998, ed. R. C. Woodward. Trans Tech Publications, Totton, UK, 1999.
26. Page, B. J. and Loar, G. W., in Encyclopedia for Chemical Technology, Vol. 6, 4th edn, ed. J. I. Kroschwitz and M. Howe-Grant. Wiley, New York, 1991, p. 263.
27. Schaffer · Metall. Trans. · 1992 · A23 · 128510.1007/BF02665060 ↗
28. Yang · J. Solid St. Chem. · 1993 · 107 · 25810.1006/jssc.1993.1346 ↗
29. Cullity · 1978 · 102
30. Barin, I. (ed.), Thermodynamic Data of Pure Substances, 2nd edn. VCH, Weinheim, Germany, 1993.
31. Auflage, A., Gmelins Handbuch der Anorganischen Chemie, Vol. 2. Verlag Chemie, GmbH, Germany, 1962, p. 481.
32. Tsuzuki, T. and McCormick, P. G., J. Am. Ceram. Soc., in press
33. Levin, E. M., Robbins, C. R. and McMurdie, H. F. (ed.), Phase Diagrams for Ceramists, 3rd edn. The American Ceramic Society, Columbus, OH, 1964.