Philippe Buffat

philippe.buffat@epfl.ch

vCard

Nationalité: Swiss and French

EPFL SB-DO
PH L1 500 (Bâtiment PH)
Station 3
1015 Lausanne

Office: PH L1 500
EPFL › SB › SB-DEC › PH-SB

EPFL CIME
MXC 132 (Bâtiment MXC)
Station 12
CH-1015 Lausanne

Office: MXC 132
EPFL › VPA › VPA-AVP-CP › CIME › CIME-GE

Site web: https://cime.epfl.ch

Expertise

HRTEM, HRSTEM, WTEM, RTEM, SEM, EDS
Nanodiffraction, precession
EDS microanalysis
HR(S)TEM/diffraction image simulation
Nanoparticles structure

- size effects, e- irradiation, phase identification
III-V semiconductors quantum wells

- interface abruptness and planeness
Ti-base coatings: nitridation, Ti-Ni-P
CeO2/NLM precipitation
Phase transition in perovskites
Ni-base superalloys: interfaces/composition

- atom column EDXS mapping
Mn-Si thermoelectrics phase distribution
YBCO swift ion irradiation defects
Biominerals: hydroxyapatite, Ca-P

Expertise

Mission

Directeur du CIME (1971- 2007)

Biographie Publications Enseignement et PhD

Originaire de Vuarrens (VD), Philippe-André Buffat est né à Lausanne en 1942. Il est ingénieur-physicien diplômé de l

Formation

1971 – 2025 Freelance electron microscopist. EM prof. EPFL.
Dirigée par Freelance electron microscopist. EM prof. EPFL.

2025

The influence of Cr concentration on the phase composition and properties of a unidirectionally crystallized ternary system Cr-Fe-Si before and after annealing

E. Suvorova; A. Ivanova; N. Arkharova; M. Lukasov; Y. Fedor et al.

Crystallography Reports. 2025. DOI : 10.1134/S1063774524602387.

Philippe Buffat

Expertise

Expertise

Mission

Formation

2025

The influence of Cr concentration on the phase composition and properties of a unidirectionally crystallized ternary system Cr-Fe-Si before and after annealing

2024

Composition and Element Distribution Mapping of γ′ and γ" Phases of Inconel 718 by High-Resolution Scanning Transmission Electron Microscopy and X-ray Energy-Dispersive Spectrometry

2023

Secondary Phase CeO2 Precipitates in Ce,Er-Doped Na0.5La0.5MoO4 Single Crystals Grown by Czochralski Method

Phases and Interfaces in the Cr-Fe-Si Ternary System: X-ray Diffraction and Electron Microscopy Study

2022

Search for Magnetoelectric Coupling at the Fe-57/Hf0.5Zr0.5O2 Interface Using Operando Synchrotron Mossbauer Spectroscopy

Structure, Oxygen Content and Electric Properties of Titanium Nitride Electrodes in TiNx/La:HfO2/TiNx Stacks Grown by PEALD on SiO2/Si

2020

Structure evolution, bandgap, and dielectric function in La-doped hafnium oxide thin layer subjected to swift Xe ion irradiation

2018

Effects of Kr and Xe ion irradiation on the structure of Y2O3 nanoprecipitates in YBCO thin film conductors

2017

Structure of precipitates and orientation relationships in Al, Ge, Mo-doped higher manganese silicide crystals

2015

Imaging and characterization of gamma ' and gamma '' nanoparticles in Inconel 718 by EDX elemental mapping and FIB-SEM tomography

Mechanism of formation of silver nanoparticles in MAG-DMAEMA copolymer aqueous solutions

2014

Structure analysis of the YBCO layer in Ag/YBCO/metal oxide buffer/Hastelloy composite tape before and after 107 MeV Kr17+ irradiation

2013

Recent EDS instrumental advances in STEM: from principles to applications

Metamorphic InAlAs/InGaAs/InAlAs/GaAs HEMT heterostructures containing strained superlattices and inverse steps in the metamorphic buffer

2011

TEM study of Mg distribution in micrite crystals from the Mishrif reservoir Formation (Middle East, Cenomanian to Early Turonian)

2009

Transmission electron microscopy of Ca oxide nano- and microcrystals in alpha-tricalcium phosphate prepared by sintering of beta-tricalcium phosphate

Characterisation of phases in nanostructured, multilayered titanium alloys by analytical and high-resolution electron microscopy

2008

Investigation of particles emitted from modern 2-stroke scooters

Study of new sheep bone and Zn/Ca ratio around TiAlV screw: PIXE-RBS analysis

2007

Scanning and transmission electron microscopy for evaluation of order/disorder in bone structure

Erratum to “Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE). Photocatalytic applications"

Alloying effects on microstructure and mechanical properties of high volume fraction SiC-particle reinforced Al-MMCs made by squeeze casting infiltration

Phase analysis of multilayered, nanostructured titanium-base alloys by analytical electron microscopy

Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE): Photocatalytic applications

2006

Preparation and structural characterization of thin-film CdTe/CdS heterojunctions

Microstructure, properties and biocompatibility of the nitrided Ti-6Al-4V alloy for medical application

Electron microscopy of biomaterials based on hydroxyapatite

Analytical transmission electron microscopy and electron diffraction for characterization of multiphase Ni-P-Ti surface layer on Ti-6Al-4V alloy

2005

Electron microscopy for investigation of order/disorder in bone structure

Cross section investigations of compositions and sub-structures of tips obtained by focused electron beam induced deposition

Novel topotactic conversion of an organically templated vanadyl phosphate framework into layered structures

The influence of Ti doping methods on the high field performance of (Nb, Ta, Ti)3Sn multifilamentary wires using Osprey bronze

Characterization of perovskite powders for cathode and oxygen membranes made by different synthesis routes

Correlation between oxygen transport properties and microstructure in La<sub>0.5</sub>Sr<sub>0.5</sub>FeO<sub>3-δ</sub>

Microstructure and properties of hard layers formed by duplex surface treatment containing nickel and phosphorus on a titanium-base alloy

Transmission electron microscopy and atomic force microscopy characterisation of titanium-base alloys nitrided under glow discharge

Stability of Ag nanoparticles dispersed in amphiphilic organic matrix

Pathological mineralization of cardiac valves: Causes and mechanism

2004

Influence of microstructure on oxygen transport in perovskite type membranes

Highly dispersed gold on activated carbon fibers for low temperature CO oxidation

Analytical TEM and AFM studies of nitrided multilayered titanium-base biomaterials

Identification of nano-phases: relative merit of local analysis techniques (HRTEM, nanodiffraction, EDS/EELS)

Selective synthesis of Pd nanoparticles in complementary micropores of SBA-15

Identification of nano-phases: relative merit of local analysis techniques (HRTEM, nanodiffraction, EDS/EELS)

Thermal effects during focused electron beam induced deposition of nanocomposite magnetic-cobalt-containing tips

Electron beam induced deposition of rhodium from the precursor [RhCl(PF3)2]2: morphology, structure and chemical composition

HRTEM simulation in determination of thickness and grain misorientation for hydroxyapatite crystals

2003

Pd/SiO2 catalysts: synthesis of Pd nanoparticles with the controlled size in mesoporous silicas

Structural and catalytic properties of vanadia-based fibrous catalysts in toluene partial oxidation

Structure of cellulose Acetobacter xylinum

Superior biodegradability mediated by immobilized Fe-fabrics of waste waters compared to Fenton homogeneous reactions

Theoretical and experimental limits of quantitative analysis of strain and chemistry of inGasAs/GaAs layers using (200) dark-fiel TEM imaging

Dynamical behavior of nanocrystals in transmission electron microscopy : size, temperature or irradiation effects

Gold nanoparticles on activated carbon fibers: Role of carbon surface groups for controlling the Au-particle size and catalytic activity

Nanostructure of hydroxyapatite coatings sprayed in argon plasma

Electron diffraction and HRTEM studies of multipy-twinned structures and dynamical events in metal nanoparticles : facts and artefacts

2002