TY - JOUR
T1 - Young's modulus measurements of SiC coatings on spherical particles by using nanoindentation
AU - TAN, J.
AU - MEADOWS, P.J.
AU - ZHANG, D.
AU - CHEN, Xi
AU - LÓPEZ-HONORATO, E.
AU - ZHAO, X.
AU - YANG, F.
AU - ABRAM, T.
AU - XIAO, P.
N1 - The authors would like to thank A. Forrest at School of Materials, University of Manchester for his help on nanoindentation experiments and British Nuclear Fuel Ltd. (Now Nexia Solutions) for financial support.
PY - 2009/8/15
Y1 - 2009/8/15
N2 - 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. © 2009 Elsevier B.V. All rights reserved.
AB - 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. © 2009 Elsevier B.V. All rights reserved.
UR - http://www.scopus.com/inward/record.url?scp=68049099174&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2009.05.001
DO - 10.1016/j.jnucmat.2009.05.001
M3 - Journal Article (refereed)
SN - 0022-3115
VL - 393
SP - 22
EP - 29
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1
ER -