Effect of spinel content on the properties of phosphoric acid bonded high alumina castables

Zichun Yang; Hongwei Duan; Lin Li; Shuqin Li; Wen Ni

Volume 10 Issue 5

Oct. 2003

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Abstract

International Journal of Minerals, Metallurgy and Materials > 2003 > 10(5): 15-19.

Zichun Yang, Hongwei Duan, Lin Li, Shuqin Li, and Wen Ni, Effect of spinel content on the properties of phosphoric acid bonded high alumina castables, J. Univ. Sci. Technol. Beijing , 10(2003), No. 5, pp.15-19.

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Mineral

Effect of spinel content on the properties of phosphoric acid bonded high alumina castables

Zichun Yang^1), ,,
Hongwei Duan²⁾,
Lin Li²⁾,
Shuqin Li²⁾ and
Wen Ni²⁾

Author Affilications

Naval Engineering Univeristy, Wuhan 430033, China
Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China

Received: 04 December 2002; Available Online: 21 June 2021

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Abstract

Abstract

In order to study the effect of fused spinel on the properties of phosphoric acid bonded high alumina castables, samples with different contents of fused spinel were prepared. The results show that when the contents of the fused spinel are between 8% and 16% (mass fraction), the castables have good properties. The castables overcome the shortages of the phosphoric acid bonded high alumina castables with bauxite cement as a hardening promoter. The experiments demonstrate that most of the service properties of the castables with fused spinel are better than those of the normal phosphoric acid bonded castables which use bauxite cement as a hardening promoter. The examination of the materials indicates that free MgO inclusions in the spinel powder can promote the hardening of the castables.
- fused spinel,
- high alumina castables,
- phosphoric acid

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