Mechanical characteristics of sapphire before and after neutron irradiation

H. L. Zhang; M. F. Zhang; Z. G. Hu; J. C. Han; H. X. Guo; C. H. Xu

doi:10.1016/j.physb.2012.09.042

Mechanical characteristics of sapphire before and after neutron irradiation

H. L. Zhang
, M. F. Zhang^*
, Z. G. Hu
, J. C. Han
, H. X. Guo
, C. H. Xu

^*Corresponding author for this work

School of Astronautics

CAS - Technical Institute of Physics and Chemistry
Harbin Institute of Technology

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

10 Scopus citations

Abstract

Sapphire crystal is irradiated by neutron flux with the fluence of 1.0×10¹⁸ n/cm² and 1.0×10¹⁹ n/cm². The influence of neutron irradiation on the mechanical properties of sapphire is investigated in this paper. The crystal structure of sapphire is investigated by double-crystal X-ray diffraction (DXRD) and transmission electron microscopy (TEM). Compared with the pristine sapphire, the elastic modulus is decreased and the Vickers hardness, fracture toughness and biaxial flexure strength are increased in the neutron irradiated sample. The elastic modulus, Vickers hardness, fracture toughness and biaxial flexural strength of the 1.0×10¹⁹ n/cm² neutron irradiated sapphire are 497.11 GPa (at room temperature), 18.8 GPa, 2.95 MPa m ^1/2 and 604 MPa (600°C), respectively.

Original language	English
Pages (from-to)	34-38
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	408
Issue number	1
DOIs	https://doi.org/10.1016/j.physb.2012.09.042
State	Published - 1 Jan 2013

Keywords

Mechanical properties
Neutron irradiation
Sapphire

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10.1016/j.physb.2012.09.042

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title = "Mechanical characteristics of sapphire before and after neutron irradiation",

abstract = "Sapphire crystal is irradiated by neutron flux with the fluence of 1.0×1018 n/cm2 and 1.0×1019 n/cm2. The influence of neutron irradiation on the mechanical properties of sapphire is investigated in this paper. The crystal structure of sapphire is investigated by double-crystal X-ray diffraction (DXRD) and transmission electron microscopy (TEM). Compared with the pristine sapphire, the elastic modulus is decreased and the Vickers hardness, fracture toughness and biaxial flexure strength are increased in the neutron irradiated sample. The elastic modulus, Vickers hardness, fracture toughness and biaxial flexural strength of the 1.0×1019 n/cm2 neutron irradiated sapphire are 497.11 GPa (at room temperature), 18.8 GPa, 2.95 MPa m 1/2 and 604 MPa (600°C), respectively.",

keywords = "Mechanical properties, Neutron irradiation, Sapphire",

author = "Zhang, \{H. L.\} and Zhang, \{M. F.\} and Hu, \{Z. G.\} and Han, \{J. C.\} and Guo, \{H. X.\} and Xu, \{C. H.\}",

year = "2013",

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day = "1",

doi = "10.1016/j.physb.2012.09.042",

language = "英语",

volume = "408",

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journal = "Physica B: Condensed Matter",

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publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - Mechanical characteristics of sapphire before and after neutron irradiation

AU - Zhang, H. L.

AU - Zhang, M. F.

AU - Hu, Z. G.

AU - Han, J. C.

AU - Guo, H. X.

AU - Xu, C. H.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Sapphire crystal is irradiated by neutron flux with the fluence of 1.0×1018 n/cm2 and 1.0×1019 n/cm2. The influence of neutron irradiation on the mechanical properties of sapphire is investigated in this paper. The crystal structure of sapphire is investigated by double-crystal X-ray diffraction (DXRD) and transmission electron microscopy (TEM). Compared with the pristine sapphire, the elastic modulus is decreased and the Vickers hardness, fracture toughness and biaxial flexure strength are increased in the neutron irradiated sample. The elastic modulus, Vickers hardness, fracture toughness and biaxial flexural strength of the 1.0×1019 n/cm2 neutron irradiated sapphire are 497.11 GPa (at room temperature), 18.8 GPa, 2.95 MPa m 1/2 and 604 MPa (600°C), respectively.

AB - Sapphire crystal is irradiated by neutron flux with the fluence of 1.0×1018 n/cm2 and 1.0×1019 n/cm2. The influence of neutron irradiation on the mechanical properties of sapphire is investigated in this paper. The crystal structure of sapphire is investigated by double-crystal X-ray diffraction (DXRD) and transmission electron microscopy (TEM). Compared with the pristine sapphire, the elastic modulus is decreased and the Vickers hardness, fracture toughness and biaxial flexure strength are increased in the neutron irradiated sample. The elastic modulus, Vickers hardness, fracture toughness and biaxial flexural strength of the 1.0×1019 n/cm2 neutron irradiated sapphire are 497.11 GPa (at room temperature), 18.8 GPa, 2.95 MPa m 1/2 and 604 MPa (600°C), respectively.

KW - Mechanical properties

KW - Neutron irradiation

KW - Sapphire

UR - https://www.scopus.com/pages/publications/84869995354

U2 - 10.1016/j.physb.2012.09.042

DO - 10.1016/j.physb.2012.09.042

M3 - 文章

AN - SCOPUS:84869995354

SN - 0921-4526

VL - 408

SP - 34

EP - 38

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1

ER -

Mechanical characteristics of sapphire before and after neutron irradiation

Abstract

Keywords

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