Influence of CeO2 Nanopowder on Crystallization Behavior and Sintering Performance of Fused Quartz Ceramic Materials

Li Xue Yu; Yue Jun Chen; Jing Long Bu; Jun Xing Chen; Zhi Fa Wang

doi:10.4028/www.scientific.net/AMR.415-417.1060

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 415-417Influence of CeO2 Nanopowder on Crystallization...

Influence of CeO₂ Nanopowder on Crystallization Behavior and Sintering Performance of Fused Quartz Ceramic Materials

Abstract:

Fused quartz granule was used as raw material, and CeO₂ nanopowder was used as additive with dosages of 1wt %, 2 wt % and 3 wt %. Fused quartz ceramic materials were fabricated in reduction atmosphere at 1300 °C, 1350 °C and 1400 °C for 1 h, respectively. The properties of samples including apparent porosity, bending strength and thermal expansion ratio were measured. The results show that the sample with 1 wt % CeO₂ nanopowder has the lowest apparent porosity, the highest bending strength and the lowest thermal expansion ratio. The XRD and SEM results show that through the CeO₂ nanopowder adding, the diffraction peak intensity of quartz phase in the fused quartz ceramics decrease, and the microstructure of the samples become more compact. It can be deduced that CeO₂ nanopowder plays the excellent role as the crystallization inhibitor and sintering assistant to fused quartz materials sintered at various temperatures.

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Periodical:

Advanced Materials Research (Volumes 415-417)

Pages:

1060-1063

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.415-417.1060

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Online since:

December 2011

Authors:

Li Xue Yu, Yue Jun Chen, Jing Long Bu, Jun Xing Chen, Zhi Fa Wang

Keywords:

CeO₂ Nanopowder, Crystallization, Dosage, Fused Quartz, Sintering

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