A
Alexandre La Fontaine
Researcher at University of Sydney
Publications - 15
Citations - 700
Alexandre La Fontaine is an academic researcher from University of Sydney. The author has contributed to research in topics: Atom probe & Corrosion. The author has an hindex of 10, co-authored 15 publications receiving 571 citations.
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Journal ArticleDOI
Advances in the calibration of atom probe tomographic reconstruction
Baptiste Gault,Michael P. Moody,Frédéric De Geuser,Guy Tsafnat,Alexandre La Fontaine,Leigh T. Stephenson,Daniel Haley,Simon P. Ringer +7 more
TL;DR: In this paper, the influence of the tip to electrode distance and specimen temperature on the parameters of APT tomography data sets is explored and the results indicate that the reconstruction parameters are specific to each specimen.
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Deformation-induced trace element redistribution in zircon revealed using atom probe tomography
Sandra Piazolo,Alexandre La Fontaine,Patrick Trimby,Simon L. Harley,Limei Yang,Richard Armstrong,Julie M. Cairney +6 more
TL;DR: Using atom probe tomography, the effects of crystal–plastic deformation on atomic-scale elemental distributions in zircon are documented revealing sub-micrometre-scale mechanisms of trace element mobility.
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Atomic-scale compositional mapping reveals Mg-rich amorphous calcium phosphate in human dental enamel.
Alexandre La Fontaine,Alexander V. Zavgorodniy,Howgwei Liu,Rongkun Zheng,Michael V. Swain,Michael V. Swain,Julie M. Cairney +6 more
TL;DR: Atomic-scale study of human dental enamel reveals an intergranular amorphous phase thought to be responsible for tooth decay and supports the postclassical theory of amelogenesis (that is, enamel formation) and suggests that decay occurs via dissolution of the inter granular phase.
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Atom probe study of impurity segregation at grain boundaries in chromia scales grown in CO2 gas
Thuan Dinh Nguyen,Alexandre La Fontaine,Limei Yang,Julie M. Cairney,Jianqiang Zhang,David J. Young +5 more
TL;DR: In this paper, the effects of grain boundary diffusion supporting scale growth and alloy carburisation are discussed. But the authors do not consider the effect of chromia grain boundaries on the diffusion of grain boundaries.
Journal ArticleDOI
Interpreting atom probe data from chromium oxide scales
Alexandre La Fontaine,Baptiste Gault,Andrew J. Breen,Leigh T. Stephenson,Anna V. Ceguerra,Limei Yang,Thuan Dinh Nguyen,Jianqiang Zhang,David J. Young,Julie M. Cairney +9 more
TL;DR: Picosecond-pulsed ultraviolet-laser (UV-355 nm) assisted atom probe tomography was used to analyze protective, thermally grown chromium oxides formed on stainless steel and a new parameter termed "laser sensitivity factor" is introduced in order to quantify the effect of laser energy on the extent of the thermal tail.