中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 12 No. 3 June 2002 |
high B2O3-P2O5-AlPO4 content in
molten aluminum
（School of Materials Science and Engineering,
Shanghai Jiaotong University, Shanghai 200030, China）
Abstract:The new enamels with high H3BO3-(NH4)2HPO4-AlPO4 content were studied, and the melting temperature of the enamels was adjusted by adding carbonate of alkali metal and alkaline earth metal. The enamels could spread slightly in the molten Al alloy observed by SEM and experiment. The components of the enamels were not detected with electron probe (EDAX-S-520) on the interface of Al alloy, but elemental Si of aluminum alloy was found in the silica-free enamels. Moreover, the components of the boron-free enamels were detected on the interface of Al alloy. The results show that the enamels with high B2O3-P2O5-AlPO4 content are resistant to the corrosion of molten Al.
Key words: enamel; molten Al; corrosion; interface; electron probe
