Study on Synthesis and Properties of the Hafnium Tungstate by CO2 Laser

Jun Ping Wang; Qing Dong Chen; Er Jun Liang

doi:10.4028/www.scientific.net/AMR.154-155.467

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Modeling of the High Frequency Plasma Reactive Synthesis of Titanium Dioxide Nanoparticles
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Study on Synthesis and Properties of the Hafnium Tungstate by CO₂ Laser
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 154-155Study on Synthesis and Properties of the Hafnium...

Study on Synthesis and Properties of the Hafnium Tungstate by CO₂ Laser

Abstract:

The crystal structure of hafnium tungstate displays unusual property of isotropic negative thermal expansion in a wide temperature range which brings about a number of important potential applications. In this work, densely packed hafnium tungstate blocks are rapid synthesized by CO2 laser. The result of XRD and Raman spectra show that the samples contain single cubic phase of α-HfW2O8 with space group P213. The SEM observations show that the sample is composed of nano-rods which grow horizontally on the surface and in the interior. The nano-threads in the interior are composed of densely packed nano-crystallites.

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Periodical:

Advanced Materials Research (Volumes 154-155)

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467-470

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.154-155.467

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Online since:

October 2010

Authors:

Jun Ping Wang, Qing Dong Chen, Er Jun Liang

Keywords:

HfW₂O₈, Laser Sintering, NTE, Raman Spectroscopy

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