Effect of Nano-Nd2O3 on Sintering and Crystallization of Fused Quartz Ceramic Materials

Ying Lei Gu; Jing Long Bu; Li Xue Yu; Jun Xing Chen; Zhi Fa Wang

doi:10.4028/www.scientific.net/AMR.602-604.499

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Effect of Nano-Nd2O3 on Sintering and...

Effect of Nano-Nd₂O₃ on Sintering and Crystallization of Fused Quartz Ceramic Materials

Abstract:

Fused quartz powder (d₅₀=19μm) was used as raw material, and nano-Nd₂O₃ was used as additive with dosages of 1% (in mass, similarly hereinafter), 2% and 3%. The effects of nano-Nd₂O₃ on crystallization and sintering behavior of the materials at various temperatures (1300 °C/1h, 1350 °C /1h and 1400°C /1h) were studied by measurements of apparent porosity, bending strength and thermal expansion ratios (RT~1200°C), and analyses of XRD and SEM. The results of XRD and thermal expansion ratios analysis showed that 3% nano-Nd₂O₃ additive had excellent effect on inhibiting crystallization of the samples sintered at 1350 °C and 1400°C. The results showed that the samples sintered at various temperatures with 3% nano-Nd2O3 had the lowest apparent porosity and more compact microstructure. This indicated that 3% nano-Nd₂O₃ had better effect on facilitating sintering of fused quartz materials.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

499-502

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.499

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Online since:

December 2012

Authors:

Ying Lei Gu*, Jing Long Bu, Li Xue Yu, Jun Xing Chen, Zhi Fa Wang

Keywords:

Crystallization, Fused Quartz, Nano-Nd₂O₃, Sintering, Thermal Expansion

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