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Nano-Crystalline Powders and Suspensions Generated Using AFlow-Through Hydrothermal Process, Part I: Characterization

Published online by Cambridge University Press:  21 February 2011

John G. Darab
Affiliation:
Padfic Northwest Laboratory [1], Richland, WA 99352
M. F. Buehler
Affiliation:
Padfic Northwest Laboratory [1], Richland, WA 99352
J. C. Linehan
Affiliation:
Padfic Northwest Laboratory [1], Richland, WA 99352
D. W. Matson
Affiliation:
Padfic Northwest Laboratory [1], Richland, WA 99352
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Abstract

A wide range of ultra-fine, nano-crystalline powders and suspensions havebeen produced using the Rapid Thermal Decomposition of precursors inSolution (RTDS) technology. These materials include single andmulti-component iron-, zirconium-, titanium-, nickel-, andchromium-oxide/oxyhydroxide powders. RTDS, which was developed at PacificNorthwest Laboratory, is a flow-through hydrothermal process capable ofproducing nano-crystalline particulate material at rates of up to 100 gramsof solid per hour. We present the results of characterization efforts onRTDS iron oxyhydroxide and zirconium oxide systems. As-collected RTDSsuspensions were characterized using optical light scattering. SeparatedRTDS powders were evaluated using X-ray diffraction, electron microscopy,gas adsorption analysis, thermal gravimetric analysis, and chemicalanalysis.

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Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1 Pacific Northwest Laboratory is operated for the United States Department of Energy by the Battelle Memorial Institute under contract DE-AC06-76RLO 1830.Google Scholar
2 Gleiter, H., Nanostructured Mat. 1,1 (1992).Google Scholar
3 Yan, M. F., in Advances in Powder Technology, edited by Chin, G. Y. (American Society for Metals, Metals Park, Ohio, 1982), pp. 99133.Google Scholar
4 Matson, D. W., Linehan, J. C., and Bean, R. M., Mater. Lett. 14,222 (1992).Google Scholar
5 Matson, D. W., Linehan, J. C., Darab, J. G., and Buehler, M. F., Energy & Fuels 8,10 (1994).Google Scholar
6 Matson, D. W., Linehan, J. C., and Geusic, M. E., Part. Sei. & Tech. 10,143 (1992).Google Scholar
7 Darab, J. G., Linehan, J. C., Ma, Y., and Matson, D. W., in Applications of Synchrotron Radiation to Materials Science, edited by Perry, D.L., Shinn, N., Stockbauer, R., D'Amico, K., and Terminello, L. (Mater. Res. Soc. Proc. 307, Pittsburgh, PA, 1993), pp. 914.Google Scholar
8 Six line ferrihydrite is so named because its XRD pattern consists of six broad lines. Believed to be a weakly crystalline, hydrated substructure of hematite [8].Google Scholar
9 Schwertmann, U. and Cornell, R. M., Iron Oxides in the Laboratory: Preparation and Characterization (VCH Publishers, Inc., New York, 1991).Google Scholar
10 German, R. M., Powder Metallurgy Science (Metal Powder Industries Federation, Princeton, 1984), pp. 1821.Google Scholar