Effect of V2O5 on crystallization tendency and chemical durability of Mo-bearing aluminoborosilicate glass

Qihui Lian; Xingquan Zhang; Hongjia Ji; Pengpeng Yu; Xiaofeng Guo; Wei Wan; Haifeng Liu; Kui Zheng; Yongchang Zhu; Haibin Wang; Jichuan Huo

doi:10.1088/2053-1591/ab82ca

Materials Research Express (Jan 2020)

Effect of V2O5 on crystallization tendency and chemical durability of Mo-bearing aluminoborosilicate glass

Qihui Lian,
Xingquan Zhang,
Hongjia Ji,
Pengpeng Yu,
Xiaofeng Guo,
Wei Wan,
Haifeng Liu,
Kui Zheng,
Yongchang Zhu,
Haibin Wang,
Jichuan Huo

Affiliations

Qihui Lian: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Xingquan Zhang: ORCiD; State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Hongjia Ji: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Pengpeng Yu: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Xiaofeng Guo: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Wei Wan: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Haifeng Liu: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Kui Zheng: ORCiD; State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China
Yongchang Zhu: Institute of Quartz and Special Glasses, China Building Materials Academy , Beijing, 100024, People’s Republic of China
Haibin Wang: Key Laboratory of Inorganic Materials Preparation and Synthesis, Mianyang Normal University , Mianyang, Sichuan 621010, People’s Republic of China
Jichuan Huo: State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/ab82ca
Journal volume & issue: Vol. 7, no. 4
p. 045201

Abstract

Read online

The effect of V _2 O _5 addition on molybdates crystallization tendency, glass structure and chemical durability of aluminoborosilicate glass belonging to SiO _2 -B _2 O _3 -CaO-Na _2 O-Al _2 O _3 -MoO _3 system has been studied. The results confirm that V _2 O _5 addition can effectively suppress the crystallization tendency of powellite and enhance the molybdenum solubility in the glass. The MoO _3 solubility limit is found to be 2.8 mol% in the V _2 O _5 -containing aluminoborosilicate glass. Raman results reveal that V _2 O _5 addition seems to modify the local structural environment of isolated MoO _4 units and increase their chemical disorder in the glass, which is favored for molybdenum incorporation in the glass. The molar volume and glass transition temperature of samples are found to depend on V _2 O _5 content. Product consistency test (PCT) results show that the normalized leaching rates of the V _2 O _5 -containing aluminoborosilicate glass maintain at a fairly low level compared with standard borosilicate glassy waste form.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

About the journal

Abstract

Keywords