Paper Title:
Phase Evolution of Aluminum-Chromium-Phosphate Binders during Heat-Treatment
  Abstract

Aluminum phosphate is one of the best inorganic binders, and the addition of chromium oxide can improve the properties of the binder. In this work, the phase evolutions in chromium phosphate system and aluminum-chromium-phosphate system during heat-treatment were investigated. The initial binder solutions were prepared by dissolving Al(OH)3 and Cr2O3 in aqueous H3PO4 solution. The binder solutions consolidated at 100°C. The as-consolidated products were heated at different temperature. The experimental results showed the phase evolution of the consolidated products as: amorphous phase in 300~800°C, Cr(PO3)3 and Cr4(P2O7)3 in 900~1200°C for chromium phosphate system binder; amorphous phase in 300~1000°C, Cr(PO3)3 and AlPO4 in 1100°C, Cr4(P2O7)3 and AlPO4 in 1200°C for aluminumchromium- phosphate system binder. The addition of chromium oxide demonstrates to strengthen amorphous network, which further improves the thermal stability.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1280-1283
DOI
10.4028/www.scientific.net/KEM.336-338.1280
Citation
C. Zou, D. H. Zhang, Y. Li, W. J. Weng, K. Cheng, C. L. Song, G. L. Zhao, P. Y. Du, G. Shen, J. X. Wang, G. R. Han, "Phase Evolution of Aluminum-Chromium-Phosphate Binders during Heat-Treatment", Key Engineering Materials, Vols. 336-338, pp. 1280-1283, 2007
Online since
April 2007
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Price
$32.00
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