Regulating the properties of slips in the production of fused quartz ceramics

V. F. Tsarev

doi:10.1007/bf00810534

Preparation of high-density fused quartz ceramics based on a J2-optimality mixed orthogonal method

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/233/2/022009 ◽

2019 ◽

Vol 233 ◽

pp. 022009

Author(s):

Hou Qinglin ◽

Wang Yingxia ◽

Tian Liang ◽

You Yaoyao

Keyword(s):

High Density ◽

Orthogonal Method ◽

Fused Quartz ◽

Quartz Ceramics

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.415-417.1060 ◽

2011 ◽

Vol 415-417 ◽

pp. 1060-1063

Author(s):

Li Xue Yu ◽

Yue Jun Chen ◽

Jing Long Bu ◽

Jun Xing Chen ◽

Zhi Fa Wang

Keyword(s):

Thermal Expansion ◽

Bending Strength ◽

Ceramic Materials ◽

Expansion Ratio ◽

Quartz Ceramic ◽

Apparent Porosity ◽

Raw Material ◽

Fused Quartz ◽

Crystallization Inhibitor ◽

Quartz Ceramics

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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Effect of in situ synthesis of Si2N2O on microstructure and the mechanical properties of fused quartz ceramics

Ceramics International ◽

10.1016/j.ceramint.2019.12.111 ◽

2020 ◽

Vol 46 (7) ◽

pp. 8725-8729 ◽

Cited By ~ 1

Author(s):

Yingxia Wang ◽

Qinglin Hou ◽

Liang Tian ◽

Pingfei Chen ◽

Jiakai Xiao

Keyword(s):

Mechanical Properties ◽

In Situ Synthesis ◽

Fused Quartz ◽

Quartz Ceramics

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Influence of La2O3 Nanopowder on Crystallization Behavior and Sintering Performance of Fused Quartz Ceramic Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.415-417.1074 ◽

2011 ◽

Vol 415-417 ◽

pp. 1074-1077

Author(s):

Jing Long Bu ◽

Yue Jun Chen ◽

Jun Xing Chen ◽

Li Xue Yu ◽

Zhi Fa Wang

Keyword(s):

Thermal Expansion ◽

Bending Strength ◽

Ceramic Materials ◽

Expansion Ratio ◽

Quartz Ceramic ◽

Apparent Porosity ◽

Raw Material ◽

Inhibiting Effect ◽

Fused Quartz ◽

Quartz Ceramics

Fused quartz granule was used as raw material, and La2O3 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 2 wt % La2O3 nanopowder has the lowest apparent porosity and the highest bending strength, and sample added 1% nano-La2O3 has the best inhibiting effect on crystallization of fused quartz. The samples with La2O3 nanopowder adding have lower thermal expansion ratio than blank sample. The XRD and SEM results show that the diffraction peak intensity of quartz phase decrease and the microstructure of the samples become more compact, after the La2O3 nanopowder was added into fused quartz ceramics. It indicated that La2O3 nanopowder has excellent inhibiting effect on crystallization of fused quartz and facilitating effect on sintering of fused quartz ceramics.

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