Hf3AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance
Li, Fangzhi1,2; Liu, Bin1,2; Wang, Jingyang1; Zhou, Yanchun1
Corresponding AuthorZhou, Yanchun(
AbstractIn this work, bulk Hf3AlN ceramic was synthesized by an in situ reaction/hot pressing method using Hf and AlN as initial materials. The reaction path during the synthesis process was investigated. Hf3AlN was found to form via the reaction of Hf and AlN above 1000 degrees C. Furthermore, physical and mechanical properties of Hf3AlN, such as electrical conductivity, flexural strength, and elastic moduli were also characterized. Similar to typical layered ternary ceramics Ti3SiC2 and Ti3AlC2, Hf3AlN possesses metallic conductivity and excellent damage tolerance, which is also the first one of this type that has ever been reported to crystallize in an orthorhombic structure. It is believed that a typical layered crystal structure and weak inter-layer bondings contribute to the damage tolerance of Hf3AlN. Moreover, the stiffness of Hf3AlN can sustain a temperature as high as 1450 degrees C, being 250 degrees C higher than that of Ti3AlC2, which renders it a promising high-temperature structural material.
Funding OrganizationNational Outstanding Young Scientist Foundation ; Natural Science Foundation of China
Indexed BySCI
Funding ProjectNational Outstanding Young Scientist Foundation[59925208] ; Natural Science Foundation of China[90403027] ; Natural Science Foundation of China[50772114] ; Natural Science Foundation of China[50832008]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000273392900041
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhou, Yanchun
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Li, Fangzhi,Liu, Bin,Wang, Jingyang,et al. Hf3AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2010,93(1):228-234.
APA Li, Fangzhi,Liu, Bin,Wang, Jingyang,&Zhou, Yanchun.(2010).Hf3AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,93(1),228-234.
MLA Li, Fangzhi,et al."Hf3AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 93.1(2010):228-234.
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