Imaging the in-plane distribution of helium precipitates at a Cu/V interface

被引：24

作者：

Chen, Di ^{[1
]}

Li, Nan ^{[2
]}

Yuryev, Dina ^{[3
]}

Wen, Juan ^{[1
]}

Baldwin, Kevin ^{[2
]}

Demkowicz, Michael J. ^{[4
]}

Wang, Yongqiang ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA

[2] Los Alamos Natl Lab, Mat Phyc & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM USA

[3] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[4] Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX USA

来源：

MATERIALS RESEARCH LETTERS | 2017年 / 5卷 / 05期

关键词：

Helium precipitates; interfaces; physical vapor deposition; ion implantation; metal nanocomposites; RADIATION-DAMAGE; HE; DISLOCATIONS; IRRADIATION; BUBBLES; IMPLANTATION; MULTILAYERS; COMPOSITES; REDUCTION; TOLERANCE;

D O I：

10.1080/21663831.2017.1287132

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe a transmission electron microscopy investigation of the distribution of helium precipitates within the plane of an interface between Cu and V. Statistical analysis of precipitate locations reveals a weak tendency for interfacial precipitates to align along < 110 >-type crystallographic directions within the Cu layer. Comparison of these findings with helium-free Cu/V interfaces suggests that the precipitates may be aggregating preferentially along atomic-size steps in the interface created by threading dislocations in the Cu layer. Our observations also suggest that some precipitates may be aggregating along intersections between interfacial misfit dislocations. [GRAPHICS] .

引用

页码：335 / 342

页数：8

共 43 条

[1] Defect-interface interactions [J].

Beyerlein, I. J. ;

Demkowicz, M. J. ;

Misra, A. ;

Uberuaga, B. P. .

PROGRESS IN MATERIALS SCIENCE, 2015, 74 :125-210

[2] Radiation damage tolerant nanomaterials [J].

Beyerlein, I. J. ;

Caro, A. ;

Demkowicz, M. J. ;

Mara, N. A. ;

Misra, A. ;

Uberuaga, B. P. .

MATERIALS TODAY, 2013, 16 (11) :443-449

[3] Bubbles formation in helium ion irradiated Cu/W multilayer nanocomposites: Effects on structure and mechanical properties [J].

Callisti, M. ;

Karlik, M. ;

Polcar, T. .

JOURNAL OF NUCLEAR MATERIALS, 2016, 473 :18-27

[4] REACTOR DAMAGE IN PURE METALS [J].

COLTMAN, RR ;

KLABUNDE, CE ;

REDMAN, JK ;

MCDONALD, DL .

JOURNAL OF APPLIED PHYSICS, 1962, 33 (12) :3509-&

[5] The role of interface structure in controlling high helium concentrations [J].

Demkowicz, M. J. ;

Misra, A. ;

Caro, A. .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2012, 16 (03) :101-108

[6] Atomic-scale design of radiation-tolerant nanocomposites [J].

Demkowicz, M. J. ;

Bellon, P. ;

Wirth, B. D. .

MRS BULLETIN, 2010, 35 (12) :992-998

[7] The effect of excess atomic volume on He bubble formation at fcc-bcc interfaces [J].

Demkowicz, M. J. ;

Bhattacharyya, D. ;

Usov, I. ;

Wang, Y. Q. ;

Nastasi, M. ;

Misra, A. .

APPLIED PHYSICS LETTERS, 2010, 97 (16)

[8] Tunable helium bubble superlattice ordered by screw dislocation network [J].

Di, Zengfeng ;

Bai, Xian-Ming ;

Wei, Qiangmin ;

Won, Jonghan ;

Hoagland, Richard G. ;

Wang, Yongqiang ;

Misra, Amit ;

Uberuaga, Blas P. ;

Nastasi, Michael .

PHYSICAL REVIEW B, 2011, 84 (05)

[9] Fluence-dependent radiation damage in helium (He) ion-irradiated Cu/V multilayers [J].

Fu, E. G. ;

Wang, H. ;

Carter, J. ;

Shao, Lin ;

Wang, Y. Q. ;

Zhang, X. .

PHILOSOPHICAL MAGAZINE, 2013, 93 (08) :883-898

[10] Interface enabled defects reduction in helium ion irradiated Cu/V nanolayers [J].

Fu, E. G. ;

Misra, A. ;

Wang, H. ;

Shao, Lin ;

Zhang, X. .

JOURNAL OF NUCLEAR MATERIALS, 2010, 407 (03) :178-188

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