Paul Bowen
EPFL › VPA › VPA-AVP-DLE › AVP-DLE-EDOC › EDMX-ENS
Expertise
powder synthesis
powder characterisation
colloidal processing
sintering of ceramics
atomistic simulation
Travail en cours
1. From Atomistic and Thermodynamic Modelling to Transparent Polycrystalline Alumina and microstrcutural characterisation.
2. Atomistic Simulation in Cementitious Systems
3. Nanoparticle tracking and oxidative stress biomarkers in healthy non-smoking volunteers
4. Non-invasive continuous monitoring of the interactions between nanoparticles and aquatic microorganisms
Mission
Main research interests are powder synthesis, powder characterisation, colloidal processing, sintering of ceramics and atomistic modelling of surfaces and interfaces..
Mission - controlling the interaction of surfaces and interfaces ubiquitous in powder technology. From solid-liquid interfaces found during precipitation or powder suspensions to grain boundaries in sintered ceramics. The interfacial interactions are investigated at an atomistic level using classical energy minimisation and molecular dynamic simulations as well as thermodynamic speciation in solution. The interactions between particles in suspension is a strong theme – be it in de-agglomeration of nanosized powders, the dispersion of cementitious materials or self-assembly during precipitation. Using either inorganic or organic additives the interfacial properties and interactions between particles and development of microstructures can be modified and controlled. This knowledge and control of interfacial interactions has lead to controlled morphology and self-assembly of nanostructured calcite and oxalates; the more efficient dispersion of cement (new dispersants devloped in collaboration with industry); the production of transparent polycrystalline alumina; and novel nanoparticles and porous nanostructured particles for photocatalytic antibacterial applications. His interaction with industry has involved product analysis and development leading to commercially successful products such the transparent nanoceramic ink-jet paper “Instant Dry” (ILFORD SA)
Dr. P. Bowen after gaining his BSc in Physics at Imperial College (UK), he obtained his Ph.D. in Physical Chemistry in the field of catalysis from the University of Cambridge, UK, in 1982, He then worked at the BP Research Centre, Sunbury, UK, for 4 years in applied surface sciences before moving to Switzerland and EPFL in 1987. He has been at the Powder Technology Laboratory, in the Materials Institute since its conception in 1988. He has over 190 publications and has written an undergraduate book on ceramic synthesis and processing.
Education:
1976-1979 Imperial College of Science and Technology, University of London. B.Sc. Honours in Physics.
1979-1982 Department of Physical Chemistry, University of Cambridge. Certificate of Postgraduate Studies in Chemistry. Thesis: A Mössbauer Study of Some Clay Minerals and their Surfaces.
Ph.D. in Physical Chemistry. Thesis: An Iron-57 and Tin-119 Mössbauer Spectroscopic Study of Some Graphite Intercalation Compounds and Carbon Supported Iron Catalysts.
Professional Experience:
1983-1986 Research Scientist (Physical Chemist), New Technology Division, British Petroleum Company plc, BP Research Centre, Sunbury on Thames, Middlesex TW16 7LN, England.
1987-1988 Engineer, Ceramics Laboratory, Département des Matériaux, Ecole Polytechnique Fédérale de Lausanne, CH - 1015 Lausanne, Switzerland.
1988-2008 Research Associate/lecturer, Powder Technology Laboratory (Present) Institute des Matériaux, Ecole Polytechnique Fédérale de Lausanne, CH - 1015 Lausanne, Switzerland.
1988- 2015 Maitre D'Ensiegnement et Recherche (Lecturer & Researcher), Powder Technology Laboratory, Institute des Matériaux, Ecole Polytechnique Fédérale de Lausanne,CH - 1015 Lausanne, Switzerland
2015 & present Adjunct Professor (Professeur Titulaire), Powder Technology Laboratory (LTP), Materials Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH - 1015 Lausanne, Switzerland
Education:
1976-1979 Imperial College of Science and Technology, University of London. B.Sc. Honours in Physics.
1979-1982 Department of Physical Chemistry, University of Cambridge. Certificate of Postgraduate Studies in Chemistry. Thesis: A Mössbauer Study of Some Clay Minerals and their Surfaces.
Ph.D. in Physical Chemistry. Thesis: An Iron-57 and Tin-119 Mössbauer Spectroscopic Study of Some Graphite Intercalation Compounds and Carbon Supported Iron Catalysts.
Professional Experience:
1983-1986 Research Scientist (Physical Chemist), New Technology Division, British Petroleum Company plc, BP Research Centre, Sunbury on Thames, Middlesex TW16 7LN, England.
1987-1988 Engineer, Ceramics Laboratory, Département des Matériaux, Ecole Polytechnique Fédérale de Lausanne, CH - 1015 Lausanne, Switzerland.
1988-2008 Research Associate/lecturer, Powder Technology Laboratory (Present) Institute des Matériaux, Ecole Polytechnique Fédérale de Lausanne, CH - 1015 Lausanne, Switzerland.
1988- 2015 Maitre D'Ensiegnement et Recherche (Lecturer & Researcher), Powder Technology Laboratory, Institute des Matériaux, Ecole Polytechnique Fédérale de Lausanne,CH - 1015 Lausanne, Switzerland
2015 & present Adjunct Professor (Professeur Titulaire), Powder Technology Laboratory (LTP), Materials Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH - 1015 Lausanne, Switzerland
BIOGRAPHIE
Dr. P. Bowen after gaining his BSc in Physics at Imperial College (UK), he obtained his Ph.D. in Physical Chemistry in the field of catalysis from the University of Cambridge, UK, in 1982, He then worked at the BP Research Centre, Sunbury, UK, for 4 years in applied surface sciences before moving to Switzerland and EPFL in 1987. He has been at the Powder Technology Laboratory, in the Materials Institute since its conception in 1988. He has over 150 publications and has written an undergraduate book on ceramic synthesis and processing.
Education:
1976-1979 Imperial College of Science and Technology, University of London. B.Sc. Honours in Physics.
1979-1982 Department of Physical Chemistry, University of Cambridge. Certificate of Postgraduate Studies in Chemistry. Thesis: A Mössbauer Study of Some Clay Minerals and their Surfaces.
Ph.D. in Physical Chemistry. Thesis: An Iron-57 and Tin-119 Mössbauer Spectroscopic Study of Some Graphite Intercalation Compounds and Carbon Supported Iron Catalysts.
Professional Experience:
1983-1986 Research Scientist (Physical Chemist), New Technology Division, British Petroleum Company plc, BP Research Centre, Sunbury on Thames, Middlesex TW16 7LN, England.
1987-1988 Engineer, Ceramics Laboratory, Département des Matériaux, Ecole Polytechnique Fédérale de Lausanne, CH - 1015 Lausanne, Switzerland.
1988-2008 Research Associate/lecturer (MER), Powder Technology Laboratory (Present) Institute des Matériaux, Ecole Polytechnique Fédérale de Lausanne, CH - 1015 Lausanne, Switzerland.
Publications représentatives
The Atomic-Level Structure of Cementitious Calcium Silicate Hydrate
A. Kumar, B. J. Walder, A. K. Mohamed, A. Hofstetter, B. Srinivasan, A.J. Rossini, K. Scrivener, L. Emsley and P. Bowen
Published in J.Phys.Chem.C 121(32) 17188–17196 (2017). in
Particle Size Distribution Measurement From Millimeters to Nanometers and From Rods to Platelets
Bowen, P.
Published in J. Dispersion Science and Technology, 23(5) 631-662 (2002). in
"YODEL: a Yield stress mODEL for suspensions"
R. J. Flatt, P. Bowen,
Published in J.Amer.Ceram.Soc., 89(4) 1244-56, (2006) in
Thermodynamic-Kinetic Precipitation Modeling. A Case Study: The Amorphous Calcium Carbonate (ACC) Precipitation Pathway Unravelled,
A. Carino, A. Testino, M. R. Andalibi, F. Pilger, P. Bowen, and C. Ludwig,
Published in Cryst. Growth Des., 17 (4), pp 2006–2015, (2017), in
A comparative study of simulated body fluids in the presence of proteins
W. Zhao, J. Lemaitre, P. Bowen
Published in 53, 506-514, 2017 in
Theoretical assessment of Nd:YAG ceramic laser performance by microstructural and optical modeling,
U. Aschauer and P. Bowen
Published in J. Am. Ceram. Soc. 93[3] 814-820 (2010). in
Aggregation and Growth Mechanism of Seeded Calcium Carbonate Precipitation in the Presence of Polyacrylic Acid,
M. Donnet, A. Aimable, J. Lema�tre, P. Bowen,
Published in J. Phys Chem B,114, 12058-12067, 2010 in
�Growth Modification of Seeded Calcite using Carboxylic Acids -Atomistic Simulations�,
U. Aschauer, D. Spagnoli, S.C. Parker and P. Bowen
Published in J.Coll.Inter.Sci. 346 (2010) 226�231 in
Control of morphology and nanostructure of copper and cobalt oxalates: Effect of complexing ions, polymeric additives and molecular weight.
P. Bowen, O. Pujol, N. Jongen, J. Lema�tre, A. Fink, P. Stadleman and H. Hofmann,
Published in Nanoscale, 2, 2470-2477, 2010. in
Precipitation of self-organised copper oxalate polycrystalline particles in the presence of Hydoxypropylmethylcellulose (HPMC) : control of morphology
Jongen, N. Bowen,P. Lema�tre,J. Valmallette and Hofmann,H.
Published in J. Coll. Interf. Sci. 226 189-198 (2000). in
Transparent Polycrystalline Alumina using Spark Plasma Sintering: effect of Mg, Y and La doping
M. Stuer, Z.Zhao, U. Aschauer, P. Bowen,
Published in J Eur Ceram Soc. 30 (2010) 1335-1343 in
�Precipitation of nanosized and nanostructured powders: process intensification using SFTR�, applied to BaTiO3, CaCO3 and ZnO -.
A. Aimable N. Jongen, A. Testino, M. Donnet, J. Lemaitre, H. Hofmann and P. Bowen
Published in Chem. Eng. & Techn., 34(3) 344-352 (2011) in
"Hamaker 2: A toolkit for the calculation of particle interactions and suspension stability and its application to mullite synthesis by colloidal method".
U. Aschauer, O. Burgos-Montes, R. Moreno, P. Bowen,
Published in J Dispersion Science Technology, 32(4), (2011), 470 � 479. in
Atomistic simulations of dopant segregation in ?-alumina ceramics: coverage dependent energy of segregation and nominal dopant solubility.
S. Galmarini, U. Aschauer, A. Tewari, Y. Aman, C. Van Gestel, Bowen, P,
Published in J.Eur.Ceram.Soc., 31 2839-2852 (2011). in
Nanopore characterization and optical modeling of transparent polycrystalline alumina - understanding and controlling coloration
M.Stuer, C. Pecharroman, Z. Zhao, M. Cantoni, and P. Bowen
Published in Adv. Funct. Materials. 22(11) 2303-2309 (2012). in