典型文献
Influence of h-BN particle size on fracture behavior and thermal shock resistance of Al2O3-C refractories
文献摘要：
h-BN can be applied in Al2O3-C refractories to substitute graphite due to their similar crystal structure and better resistance to molten steel and oxidation.The effects of h-BN particle size on the mechanical properties and fracture behavior of Al2O3-C refractories were investigated through wedge splitting test and microstructural analyses.The obtained results demonstrated that the addition of larger-sized h-BN was conducive to the growth of in situ formed SiC whiskers,which contributed to the highest flexural strength(42.63±3.10 MPa)of specimen D10.In comparison,the smaller-sized h-BN can induce more crack propagation paths along the interface and within matrix,leading to more tortuous crack propagation paths,and thus the thermal shock-related parameters such as specific fracture energy,characteristic length,and thermal shock resistance were improved.Consequently,the residual strength ratio of Al2O3-C refractories was increased from 35.5％to 42.5％with decreasing the h-BN particle size from 10 to 0.1 μm.
文献关键词：
中图分类号：
作者姓名：
Zi-xu Ji;Wen-jing Liu;Ning Liao;Ya-wei Li;Tian-bin Zhu
作者机构：
The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;National-Provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology,Wuhan 430081,Hubei,China;School of Chemical Engineering,Qinghai University,Xining 810016,Qinghai,China
文献出处：
引用格式：
[1]Zi-xu Ji;Wen-jing Liu;Ning Liao;Ya-wei Li;Tian-bin Zhu-.Influence of h-BN particle size on fracture behavior and thermal shock resistance of Al2O3-C refractories)[J].钢铁研究学报（英文版）,2022(07):1129-1137
A类：
refractories
B类：
Influence,BN,particle,fracture,behavior,thermal,shock,resistance,Al2O3,can,applied,substitute,graphite,due,their,similar,crystal,structure,better,molten,steel,oxidation,effects,mechanical,properties,were,investigated,through,wedge,splitting,test,microstructural,analyses,obtained,results,demonstrated,that,addition,larger,sized,was,conducive,growth,situ,formed,SiC,whiskers,which,contributed,highest,flexural,strength,specimen,D10,comparison,smaller,induce,more,crack,propagation,paths,along,interface,within,matrix,leading,tortuous,thus,related,parameters,such,specific,energy,characteristic,length,improved,Consequently,residual,ratio,increased,from,decreasing
AB值：
0.581378
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