Young's modulus measurements of SiC coatings on spherical particles by using nanoindentation

被引：35

作者：

Tan, J. ^{[1
]}

Meadows, P. J. ^{[1
]}

Zhang, D. ^{[2
]}

Chen, Xi ^{[3
]}

Lopez-Honorato, E. ^{[1
]}

Zhao, X. ^{[1
]}

Yang, F. ^{[1
]}

Abram, T. ^{[2
]}

Xiao, P. ^{[1
]}

机构：

[1] Univ Manchester, Sch Mat, Manchester M1 7HS, Lancs, England

[2] Univ Manchester, Sch Mech Aerosp & Civil Engn, Manchester M1 7HS, Lancs, England

[3] Columbia Univ, Dept Civil Engn & Engn Mech, New York, NY 10027 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2009年 / 393卷 / 01期

关键词：

MECHANICAL-PROPERTIES; SILICON-CARBIDE; INDENTATION; FILMS; ORIENTATION; STRENGTH; HARDNESS;

D O I：

10.1016/j.jnucmat.2009.05.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spherical silicon carbide coatings are deposited by fluidised bed chemical vapour deposition for the application to Tristructural Isotropic (TRISO) coated fuel particles. The silicon carbide exhibits columnar structure and grows along the radial direction during deposition. In this work, two measurements are made with nanoindentation, one is measured vertically to the grain growth direction. which gives a Young's modulus of 391.1 +/- 12.9 GPa, and the other is measured along the grain growth direction which gives a Young's modulus of 442.5 +/- 13.3 GPa. Finite element analysis and a theoretical effort are introduced to estimate the bending contribution when the indentation is carried out on the external surface of SiC. The relationship between grain orientation of SiC and its Young's modulus has been examined. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：22 / 29

页数：8

共 26 条

[1] Evaluation of young modulus of CVD coatings by different techniques [J].

Bellan, C ;

Dhers, J .

THIN SOLID FILMS, 2004, 469 :214-220

[2] Nature of contact deformation of TiN films on steel [J].

Bhowmick, S ;

Xie, ZH ;

Hoffman, M ;

Jayaram, V ;

Biswas, SK .

JOURNAL OF MATERIALS RESEARCH, 2004, 19 (09) :2616-2624

[3] MEASUREMENT OF YOUNGS MODULUS AND FRACTURE STRESS ON HTR PARTICLE COATINGS BY BRITTLE RING TEST [J].

BONGARTZ, K ;

GYARMATI, E ;

NICKEL, H ;

SCHUSTER, H ;

WINTER, W .

JOURNAL OF NUCLEAR MATERIALS, 1972, 45 (03) :261-264

[4] BRITTLE RING TEST - METHOD FOR MEASURING STRENGTH AND YOUNGS MODULUS ON COATINGS OF HTR FUEL PARTICLES [J].

BONGARTZ, K ;

GYARMATI, E ;

SCHUSTER, H ;

TAUBER, K .

JOURNAL OF NUCLEAR MATERIALS, 1976, 62 (2-3) :123-137

[5] Numerical study on the measurement of thin film mechanical properties by means of nanoindentation [J].

Chen, X ;

Vlassak, JJ .

JOURNAL OF MATERIALS RESEARCH, 2001, 16 (10) :2974-2982

[6] Fracture strength of plate and tubular forms of monolithic silicon carbide produced by chemical vapor deposition [J].

Cockeram, Brian Vern .

2002, Blackwell Publishing Inc. (85)

[7] Review of analysis and interpretation of nanoindentation test data [J].

Fischer-Cripps, AC .

SURFACE & COATINGS TECHNOLOGY, 2006, 200 (14-15) :4153-4165

[8] MECHANICAL PROPERTIES OF POLYCRYSTALLINE BETA-SIC [J].

GULDEN, TD .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1969, 52 (11) :585-&

[9]

Guo ZD, 2008, ACTA METALL SIN, V44, P901

[10] Finite element modeling of indentation into superhard coatings [J].

He, JL ;

Veprek, S .

SURFACE & COATINGS TECHNOLOGY, 2003, 163 :374-379

← 1 2 3 →