Crystal structure and theoretical elastic property of two new ternary ceramics Hf3Al4C6 and Hf2Al4C5

L. F. He; Z. J. Lin; J. Y. Wang; Y. W. Bao; Y. C. Zhou

doi:10.1016/j.scriptamat.2007.12.002

Crystal structure and theoretical elastic property of two new ternary ceramics Hf₃Al₄C₆ and Hf₂Al₄C₅

L. F. He
, Z. J. Lin
, J. Y. Wang
, Y. W. Bao
, Y. C. Zhou

Materials and Fuels Complex

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Two new ternary aluminum carbides, Hf₃Al₄C₆ and Hf₂Al₄C₅, were identified and their crystal structure was determined by a combination of X-ray diffraction, Z-contrast scanning transmission electron microscopy and density-function calculations. Theoretical second-order elastic constants, bulk modulus, shear modulus and Young's modulus of Hf₃Al₄C₆ and Hf₂Al₄C₅, as well as Hf₃Al₃C₅, Hf₂Al₃C₄, HfC and Al₄C₃, were calculated and compared. These new carbides show promisingly high elastic stiffness.

Original language	English
Pages (from-to)	679-682
Number of pages	4
Journal	Scripta Materialia
Volume	58
Issue number	8
DOIs	https://doi.org/10.1016/j.scriptamat.2007.12.002
State	Published - Apr 2008

Keywords

Crystal structure
Elastic properties
HfAlC
HfAlC
TEM

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10.1016/j.scriptamat.2007.12.002

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@article{6ec51f4a647141729a052e65048ffb7b,

title = "Crystal structure and theoretical elastic property of two new ternary ceramics Hf3Al4C6 and Hf2Al4C5",

abstract = "Two new ternary aluminum carbides, Hf3Al4C6 and Hf2Al4C5, were identified and their crystal structure was determined by a combination of X-ray diffraction, Z-contrast scanning transmission electron microscopy and density-function calculations. Theoretical second-order elastic constants, bulk modulus, shear modulus and Young's modulus of Hf3Al4C6 and Hf2Al4C5, as well as Hf3Al3C5, Hf2Al3C4, HfC and Al4C3, were calculated and compared. These new carbides show promisingly high elastic stiffness.",

keywords = "Crystal structure, Elastic properties, HfAlC, HfAlC, TEM",

author = "He, \{L. F.\} and Lin, \{Z. J.\} and Wang, \{J. Y.\} and Bao, \{Y. W.\} and Zhou, \{Y. C.\}",

note = "Funding Information: This work was supported by the National Outstanding Young Scientist Foundation (Grant No. 59925208 to Y.C.Z. and Grant No. 50125204 to Y.W.B.), the Natural Science Foundation of China under Grant Nos. 50232040, 50302011, 90403027 and the “Hundred-Talent Plan” sponsored by Chinese Academy of Sciences. ",

year = "2008",

month = apr,

doi = "10.1016/j.scriptamat.2007.12.002",

language = "English",

volume = "58",

pages = "679--682",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

number = "8",

}

TY - JOUR

T1 - Crystal structure and theoretical elastic property of two new ternary ceramics Hf3Al4C6 and Hf2Al4C5

AU - He, L. F.

AU - Lin, Z. J.

AU - Wang, J. Y.

AU - Bao, Y. W.

AU - Zhou, Y. C.

N1 - Funding Information: This work was supported by the National Outstanding Young Scientist Foundation (Grant No. 59925208 to Y.C.Z. and Grant No. 50125204 to Y.W.B.), the Natural Science Foundation of China under Grant Nos. 50232040, 50302011, 90403027 and the “Hundred-Talent Plan” sponsored by Chinese Academy of Sciences.

PY - 2008/4

Y1 - 2008/4

N2 - Two new ternary aluminum carbides, Hf3Al4C6 and Hf2Al4C5, were identified and their crystal structure was determined by a combination of X-ray diffraction, Z-contrast scanning transmission electron microscopy and density-function calculations. Theoretical second-order elastic constants, bulk modulus, shear modulus and Young's modulus of Hf3Al4C6 and Hf2Al4C5, as well as Hf3Al3C5, Hf2Al3C4, HfC and Al4C3, were calculated and compared. These new carbides show promisingly high elastic stiffness.

AB - Two new ternary aluminum carbides, Hf3Al4C6 and Hf2Al4C5, were identified and their crystal structure was determined by a combination of X-ray diffraction, Z-contrast scanning transmission electron microscopy and density-function calculations. Theoretical second-order elastic constants, bulk modulus, shear modulus and Young's modulus of Hf3Al4C6 and Hf2Al4C5, as well as Hf3Al3C5, Hf2Al3C4, HfC and Al4C3, were calculated and compared. These new carbides show promisingly high elastic stiffness.

KW - Crystal structure

KW - Elastic properties

KW - HfAlC

KW - TEM

UR - https://www.scopus.com/pages/publications/39149128249

U2 - 10.1016/j.scriptamat.2007.12.002

DO - 10.1016/j.scriptamat.2007.12.002

M3 - Article

AN - SCOPUS:39149128249

SN - 1359-6462

VL - 58

SP - 679

EP - 682

JO - Scripta Materialia

JF - Scripta Materialia

IS - 8

ER -

Crystal structure and theoretical elastic property of two new ternary ceramics Hf₃Al₄C₆ and Hf₂Al₄C₅

Abstract

Keywords

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