Influence of Nano-Yb2O3, Nano-Nd2O3 and Nano-Dy2O3 on Sintering and Crystallization of Fused Quartz Ceramic Materials

Ying Lei Gu; Jing Long Bu; Chao Ma; Dong Mei Zhao; Zhi Fa Wang

doi:10.4028/www.scientific.net/AMR.750-752.517

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Influence of Nano-Yb2O3, Nano-Nd2O3 and Nano-Dy2O3...

Influence of Nano-Yb₂O₃, Nano-Nd₂O₃ and Nano-Dy₂O₃ on Sintering and Crystallization of Fused Quartz Ceramic Materials

Abstract:

Fused quartz powder (d₅₀=19μm) was used as raw material, nano-Yb₂O₃, nano-Nd₂O₃ and nano-Dy₂O₃ were dividedly used as additive with dosages of 3% each. Fused quartz ceramic materials were sintered in reduction atmosphere at 1300°C, 1350°C and 1400°C for 1h. The influence of rare earth nanooxides on sintering and crystallization of the fused quartz ceramic were researched by measurements of apparent porosity, bending strength and thermal expansion ratios, and analyses of XRD and SEM. The results showed that samples added nano-Yb₂O₃ and nano-Nd₂O₃ have lower apparent porosity, higher bending strength and lower thermal expansion rate. It can be deduced that additives nano-Yb₂O₃ and nano-Nd₂O₃ have obvious effect on facilitating sintering and inhibiting crystallization of fused quartz materials at experimental temperatures.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

517-520

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.517

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Online since:

August 2013

Authors:

Ying Lei Gu, Jing Long Bu, Chao Ma, Dong Mei Zhao, Zhi Fa Wang

Keywords:

Crystallization, Fused Quartz, Nano-Dy₂O₃, Nano-Nd₂O₃, Nano-Yb₂O₃, Sintering

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