Synthesis of CA6/AlON composite with enhanced slag resistance

• DOI: 10.1007/s12613-022-2435-2
• Publication Date: 2023-01-21T10:02:58Z
• Authors: Yunsong Liu; Enhui Wang; Linchao Xu; Tao Yang; Zhijun He; Tongxiang Liang; Xinmei Hou
• Keywords: 0103 physical sciences; 01 natural sciences

Abstract Aiming to improve the slag resistance of calcium hexaaluminate (CA6), different amounts of AlON have been introduced into CA6 using two approaches, i.e. one-step and two-step methods. The results show that both the two phases of CA6 and AlON are uniformly distributed when sintered at 1650 °C for 2 h in flowing nitrogen using two-step method. The optimized amount of AlON addition is determined to be 10 wt%. In addition, the reaction test method is performed and CA6/AlON composite exhibits much better slag penetration and corrosion resistance compared with pure CA6. The effect of AlON is also discussed.