Synthesis of CA_(6)/AlON composite with enhanced slag resistance  

作　　者：Yunsong Liu Enhui Wang Linchao Xu Tao Yang Zhijun He Tongxiang Liang Xinmei Hou 

机构地区：[1]Beijing Advanced Innovation Center for Materials Genome Engineering,Collaborative Innovation Center of Steel Technology,University of Science and Tech-nology Beijing,Beijing 10083,China [2]School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China [3]School of Materials Science and Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2023年第4期756-765,共10页矿物冶金与材料学报（英文版）

基　　金：financially supported by the National Science Fund for Distinguished Young Scholars (No. 52025041);the National Natural Science Foundation of China (Nos. 51904021, 51974021, 52174294, and 51902020);the Fundamental Research Funds for the Central Universities (No. FRF-TP-19-008A1);the Project of Liaoning Province’s “Rejuvenating Liaoning Talents Plan”, China (No. XLYC1902092);the Beijing Excellent Talents Foundation。

摘　　要：Different amounts of AlON have been introduced in calcium hexaaluminate(CA_(6)) using two approaches, that is, one-step and twostep methods, to improve the slag resistance of CA_(6). A one-step method can directly sinter the mixtures combining Al_(2)O_(3), CaCO_(3), and Al in flowing nitrogen, in which AlON clusters are always formed because of the poor wettability of Al by Al_(2)O_(3), leading to the high porosity of CA_(6)/AlON composite. In a two-step method, CA_(6)and AlON are prepared separately and then mixed and sintered in flowing nitrogen. Compared with the sample prepared by the one-step method, CA_(6)and AlON in composite by the two-step method are more uniformly distributed,and the optimized amount of AlON added is 10wt%. The slag corrosion and penetration test shows that the CA_(6)/AlON composite using the two-step method exhibits superior slag corrosion protection. The promoted effect of AlON on slag penetration and corrosion resistance is also discussed.

关 键 词：CA_(6)/AlON composite two-step method WETTABILITY slag resistance 

分 类 号：TB33[一般工业技术—材料科学与工程]