CURRICULUM VITAE - BMG European RTN

CURRICULUM VITAE
Dr François Olivier MEAR
May 14, 1975, Harfleur (Seine Maritime 76)
Married - Four children
French
PERSONAL ADDRESS
PROFESSIONAL ADDRESS
France: 25, Rue Henry Génestal,
University of Cambridge
76600 Le Havre
Dept. of Materials Science & Metallurgy
U.K. : 31 Parkside, Cambridge CB1 1JE
Pembroke Street, Cambridge, CB2 3QZ, UK
Tel: +44 (0)1223 331538
Tel (Secretary): +44 (0)1223 334479
Fax: +44 (0)1223 334567
Email: [email protected]
EDUCATION AND QUALIFICATIONS
2006-2007
Post doctoral position “MRTN-CT-2003-504692”
University of Cambridge (UK) - Dept. of Materials Science & Metallurgy
2005-2006
Post doctoral position
University Montpellier II (F) - Laboratoire de Physicochimie de la Matière Condensée
2004
PhD on Material Chemistry (Sponsored by industry) (with honours)
University Montpellier II (F) - Laboratoire de Physicochimie de la Matière Condensée
2001
MASTER “Materials and Processes” (With honours) University of Limoges
2000 BACHELOR “Material Science” University of Limoges
PUBLICATIONS
--- Internationals publications --• Cu2+ thin films ion-selective electrode membrane Part A: Elaboration and
characterization of the Cu2+ membrane
F. Méar, M. Essi, P. Sistat, A. Pradel & M. Ribes, Mat. Sc. & Eng. (2006) In preparation
• Cu2+ thin films ion-selective electrode membrane Part B: Ageing study of the Cu2+
membrane
F. Méar, M. Essi, P. Sistat, A. Pradel & M. Ribes, Mat. Sc. & Eng. (2006) In preparation
• Influence of AlN, TiN and SiC on the local structure of lead in foam glass elaborated
from waste Cathode-Ray Tubes glass
F. Méar, P. Yot, A.V. Kolobov, P. Fons & M. Ribes, Solid State Sc. (2006) In preparation
• Local environment study of lead barium and strontium in waste Cathode-Ray Tubes
glasses
F. Méar, P. Yot, A.V. Kolobov, M. Cambon, M.F. Guimon, D. Gonbeau & M. Ribes, J. NonCryst. Solids (2006) Submitted
• Mechanical behaviour and Thermal and Electrical properties of foam glass
F. Méar, P. Yot, R. Viennois & M. Ribes, Ceram. Inter. (2006) In press
• The characterization of waste Cathode-Ray Tubes glasses
F. Méar, P. Yot, M. Cambon & M. Ribes, Waste management, 26 (2006) 1468-1476
• Effect of temperature, reaction time and reducing agent content on the synthesis of
macroporous foam glasses from waste Cathode-Ray Tube glasses
F. Méar, P. Yot & M. Ribes, Materials Letters, 60, 7 (2006) 929-934
• Characterisation of porous glasses prepared from Cathode-Ray Tube
F. Méar, P. Yot, M. Cambon, R. Caplain & M. Ribes, Powder Technology, 162 (2005) 59-63
• The changes in lead silicate glasses induced by the addition of a reducing agent (TiN
or SiC)
F. Méar, P. Yot, M. Cambon & M. Ribes, J. of Non-Cryst. Solids, 351 (2005) 3314-3319
• Elaboration and characterisation of foam glass from Cathode-Ray Tubes
F. Méar, P. Yot, M. Cambon & M. Ribes, Adv. in Appl. Ceram., 104, 3 (2005) 123-130
--- Nationals publications --ƒ Etude de mousses de verres issus de Tubes à Rayon Cathodique (TRC) en fin de vie
contenant du plomb, F. Méar, P. Yot & M. Ribes, Verre, 12, 2 (2006) 36-49
ƒ Valorisation de verres de Tubes à Rayon Cathodique (TRC) Part I : Caractérisation
du gisement, F. Méar, P. Yot, M. Cambon & B. Liautard, Verre, 9, 1 (2003) 33-41
ƒ Valorisation de verres de Tubes à Rayon Cathodique (TRC) Part II : Synthèse de
verre expansé, F. Méar, P. Yot, M. Cambon & B. Liautard, Verre, 9, 2 (2003) 72-77
--- Proceeding --o Detection of heavy ions in polluted waters: use of chalcogenide sensors and preconcentration module, F. Méar, M. Essi, P. Sistat, A. Pradel & M. Ribes, 21st ICSWTM,
Special wastes, 26-29Mach06, Philadelphia (USA), The Journal of Solid Waste Management
and Technology, pp. 582-591
o SiC & TiN treatment of wastes lead containing CRT glasses, F. Méar, P. Yot & M.
Ribes, 21st ICSWTM, Special wastes, 26-29Mach06, Philadelphia (USA), The Journal of
Solid Waste Management and Technology, pp. 900-909
o The mechanical behaviour and thermal and electrical properties of foam glass, F.
Méar, P. Yot, M. Cambon & M. Ribes, 4th ICMP3, Lightweight & Porous Materials, 30Nov3Dec05, Tsukuba (Japan), pp.204-207
o Changes in lead silicate CRT glasses, F. Méar, P. Yot, M. Cambon & M. Ribes, 3rd
ICMAT - 7th ICEM SYM Q Advances in Ecomaterials, 3-8July05, Singapore, pp.122-129
o Foam-glass: A Very Promising Way of Valorization for CRT, M. Cambon, P. Yot, F.
Méar & B. Liautard, 19th ICSWTM, Packaging and Electronic Wastes, 21-24Mach04,
Philadelphia (USA), The Journal of Solid Waste Management and Technology, pp.1097-1106
o Etude du procédé d’élaboration du verre cellulaire à partir de verres de TRC, P. Yot,
F. Méar, M. Cambon & B. Liautard, CNR IUT 2004, 06-07May04, Nice (France) pp.147-154
CONGRESS - CONFERENCES
--- Internationals Conferences--ƒ European School, "BULK METALLIC GLASSES", 13-16 Sept. 2006, Torino (Italia)
Oral Contribution: Shot-peening of Bulk Metallic Glasses and Correlation of mechanical
parameters, François Méar, Yi Zhang & A. Lindsay Greer
ƒ International Symposium on Metastable and Nano Materials (ISMANAM), 27-31 Aug.
2006, Warsaw (Poland)
ƒ The 21st International Conference on Solid Waste Technology and Management, 26-29
Mach 2006, Philadelphia, PA (USA)
Oral Contribution: SYM “Special wastes”, SiC & TiN treatment of wastes lead containing
Cathode-Ray Tubes glasses, F. Méar, P. Yot & M. Ribes
Detection of heavy ions in polluted waters: use of chalcogenide sensors and preconcentration module, F. Méar, M. Essi, P. Sistat, P. Huguet, A. Pradel & M. Ribes
ƒ The 4th International Conference on Materials Processing for Properties and Performance
(MP3), 30 Nov. - 3 Dec. 2005, Tsukuba (Japan)
Oral Contribution: SYM “Lightweight & Porous Materials”, The mechanical behaviour and
thermal and electrical properties of foam glass, F. Méar, P. Yot, M. Cambon & M. Ribes
ƒ 3rd International Conference on Advanced Materials and 7th International Conference on
Ecomaterials, 3-8 July 2005, Singapore
Oral Contribution: SYM Q “Advances in Ecomaterials”, Changes in lead silicate CathodeRay Tubes glasses, F. Méar, P. Yot, M. Cambon & M. Ribes
ƒ Materials Congress, 30 Mach-1 April 2004, London (UK)
Oral Contribution: SYM “Processing & Characterisation of Advanced Ceramics”,
Elaboration and characterisation of foam glass from CRT, F. Méar, P. Yot, M. Cambon
& M. Ribes
ƒ The19th International Conference on Solid Waste Technology and Management, 21-24
Mach 2004, Philadelphia (USA)
Oral Contribution: SYM “Packaging and Electronic Wastes”, Foam-glass: A Very Promising
Way of Valorization for Cathode-Ray Tubes, M. Cambon, P. Yot, F. Méar & B. Liautard
ƒ EUROMAT 2003, 01-05 Sept 2003, Lausanne (Switzerland)
Oral Contribution: SYM “Ceramics and Glass Processing Advances for the 21st Century”,
Characterization of foam glass elaborated from CRT, F. Méar, P. Yot, M. Cambon & B.
Liautard
--- Nationals Conferences--o Club Micro Capteurs Chimiques (CMC2), 18 May 2006, Toulouse (France)
Poster Contribution: Détection des ions lourds dans les eaux de sites pollués : Utilisation
de capteurs chimiques à base de verres chalcogénures et d’un module de préconcentration, F. Méar, M. Essi, P. Sistat, P. Huguet, A. Pradel & M. Ribes
o Club Micro Capteurs Chimiques (CMC2), 17 Nov. 2005, Lyon (France)
Oral Contribution: Elaboration et caractérisation de capteurs chimiques élaborés à base
de verres chalcogénures – Mise au point d’un procédé analytique de pré-concentration,
F. Méar, M. Essi, P. Sistat, A. Pradel & M. Ribes
o CNR IUT, 06-07 May 2004, Nice (France)
Oral Contribution: Etude du procédé d’élaboration du verre cellulaire à partir de verre
de Tube à Rayon Cathodique, P. Yot, F. Méar, M. Cambon & B. Liautard
o 13ème Journée Grand Sud-ouest, 28 Nov. 2003, Pau (France)
Contribution Orale : Etude du processus réactionnel lors de l’élaboration d’un matériau
à structure cellulaire à base de verre de Tube à Rayon Cathodique, F. Méar, P. Yot, M.
Cambon & B. Liautard
o Journées Jeunes Chercheurs, 12-13 June 2003, CNRS, Montpellier (France)
Contribution Orale : Caractérisation et recyclage de verre de Tube à Rayon Cathodique
en verre expansé, F. Méar, P. Yot, M. Cambon & B. Liautard
o 12ème Journée Grand Sud-ouest, 22 Nov. 2002, Montpellier (France)
Contribution Orale : Caractérisation et recyclage de verre de Tube à Rayon Cathodique
en verre expansé, F. Méar, P. Yot, M. Cambon & B. Liautard
RESEARCH ACTIVITIES
2006-2007
Post-Doctoral position “MRTN-CT-2003-504692”: Ductilisation of Bulk
Metallic Glasses by Length-scale Control in BMGs Composites and Applications
Recent breakthroughs in Materials Engineering have generated complex Zr, Ti, Cu, Fe, Ni,
La, Pd and Mg-based alloys that retain a glassy state in bulk form (Bulk Metallic Glasses or
BMGs) via conventional ingot casting.
Due to their 2% elastic strain range (as compared to 0.2% for crystalline materials) BMGs
currently have the best known values for the performance index σ2/E and good values of the
index σ2/ρE (where σ, ρ and E are respectively the yield strength, mass density and Young’s
modulus). While they exhibit a very high elastic limit of 2% strain which is of major interest
for many structural applications, they show insignificant macroscopic room-temperature
plasticity and fail by fracture when solicited beyond elastic limit.
The major objective of the proposed research programme is to develop ductile hign-strength
bulk metallic glass based composites showing of the order of 10% plastic deformation at
room temperatures. This will be achieved by the introduction of selected dispersions of a
second phase of crystalline particles in the BMG matrix.
In addition to the development and testing of these different types of BMG-based composites,
a major objective is to generate fundamental understanding of the role of length scales
(micro-nano), internal stresses (thermo-mechanical), the distribution of the BMG and the
second phase dispersion to the mechanical properties and the nature of interfaces in the
determination of the conditions of ductilisation with significant plastic deformation.
2005-2006
Post-Doctoral position: Realization and characterization of ion-sensible
membrane made from chalcogenide glass. This work is part of an industrial project where
the objective is the settling of an analytical device allowing the continuous detection of
toxic elements in waters of polluted sites.
The presence of solid wastes in open environments, e. g. in mining or industrial sites, can be
at the origin of sources of pollution. A way to control the level of toxicity of the waters and to
prevent in case of an anomalous increase in the content of toxic species is to proceed to a
continuous in situ analysis of the underground waters surrounding the polluted site. However
such a control is not easy to achieve: the usual ways of water analysis such as Inductive
Coupled Plasma are very expensive and require withdrawal from the site. The best way
would be to develop an autonomous analytical system that could be placed in polluted waters
and could continuously measure the main toxic species. Chalcogenide glasses have been
shown to be very sensitive and selective to heavy ions in solution. They can be used to
develop chemical sensors that have been tested in laboratory and natural waters. However
depending upon the pollution, the membranes might not be able to work properly, either
because of saturation due to a too large amount of toxic species or else because of an
insufficient limit of detection when the water reaches the level of pollutants required by the
law. For example the environmental norm for the concentration in cadmium is [Cd2+] = 5 ppb
while the chalcogenide sensors have a detection limit close to 100ppb. A pre-conditioning
module might be developed based upon Ion-Exchange Membranes and the electro-dialysis
process.
2004 PhD: Study of foam glass elaborated from waste Cathode-Ray Tube (CRT) lead
oxide containing glasses: elaboration, physical and chemical characterizations and
applications
This work is devoted to search of possible applications for waste Cathode-Ray Tube glasses.
Heavy elements contained in the glasses are required be buried land field by producers and
recyclers of CRT’s.
Foam glass seems to be the most promising for waste CRT glasses recycling. The foam glass
is commercially available and a great amount of the CRT glass could potentially be used. The
foam glass is obtained after heat treatment of a powder mixture of the CRT glass and
reducing agent such as titanium nitride or silicone carbide. The basic principle of foam glass
manufacture is to generate a gas, by reaction between the reducing agent and lead oxide
contained in the funnel CRT glass. The gas expands thus producing a structure of cells to
form a porous body. A low density leads to high porosity, about eighty percent, and a single
pore size distribution has been obtained between 0.3 and 0.5 µm depending on the reducing
agent used. Lead metallic granules are observed on the pore surface.
The foam glasses obtained from the CRT glass are good insulators has evidenced by their low
thermal conductivity (<0.25 W.m-1.K-1) and also possess good mechanical properties. The
mechanical stress was obtained between 4 and 250 MPa and depends on synthesis process.
The insulating properties are conserved. This ensemble of properties permits to consider
industrials applications of thermal insulation production, in agreement with environmental
legislation. A partial depollution by mechanical extraction of the lead metallic granules
formed after heat treatment is possible.
2001
Master: Elaboration and properties of composite Si3N4 – TiN
The aim of this study was to evaluate the mechanical properties and the oxidation behaviour
of a Si3N4 – TiN ceramic composite (35 vol% TiN – 65 vol% Si3N4).
The first part describes the densification of the powder mixtures (silicon nitride and titanium
nitride) in presence of additives (Y2O3, Al2O3) by Hot Isostatic Pressing and the analysis of
the dense materials. The composite was obtained by mixing the two powders, cold
isostatically pressing (dr = 54%), encapsulating inside a silica container with a diffusion
barrier. The experimental parameters were: 1825°C, 185MPa, with a dwell time of 60 min.
A small quantity of aids is present, but these do not exceed a content of 0.5% in volume. The
total densification is reached.
The second part is related to the study of the mechanical properties of the dense composite.
The material shows a micro-hardness of 19 ± 2 GPa, a three-point flexural strength of
538 ± 35 MPa at the ambient temperature which remains constant up to 900°C, a toughness
KIc = 6.5 ± 0.2 MPa.m1/2 and a thermal coefficient of 6.3 × 10-6 K-1.
The last part is devoted to the oxidation behaviour (fluent O2 atm: 5 l/h). The results have
been obtained between 1000°C and 1400°C. Up to 1000°C, the composite presents a very
good resistance to oxygen. From 1000°C to 1200°C, only rutile is formed. From 1200°C to
1400°C, a silica internal layer has been detected. A diffusionnel regime is proposed. This
material is proved to be performing up to 1000°C.
TEACHING ACTIVITIES
2004 – 2005: Teaching assistant
¾ Powder metallurgy “8 hours practical work”, 2nd year Technology University
“Material Science and Engineering”
¾ Inorganic Chemistry “80 hours practical work”, 1st year Technology University
2003 – 2004: Teaching assistant
¾ Metallurgy “96 hours practical work”, 1st year Technology University
¾ Powder metallurgy “12 hours practical work”, 2nd year Technology University
¾ Chemistry “12 hours practical work”, 1st year Technology University
2002 – 2003: Teaching assistant
¾ Metallurgy “36 hours practical work”, 1st year Technology University
¾ Mathematics “12 hours class teaching”, 1st year Technology University