Lena Falk

Biträdande professor at Department of Physics, Materials Microstructure

My research is concerned with relationships between microstructure and properties of hard inorganic materials. The research involves the application of different scanning and transmission electron microscopy techniques for imaging and microanalysis. The work covers three areas of material's science: (i) development and stability of nano-/microstructures, (ii) toughening and strengthening mechanisms, and (iii) deformation mechanisms. The development of nano-/microstructure under different processing and testing conditions is characterized by high-resolution imaging and microanalysis, and the results are related to different parameters in the fabrication process and to the behaviour of the material under mechanical and thermal load. A significant part of the research has been concerned with the development of fine-scale microstructure during sintering and crystallisation processes in ceramic and glass-ceramic materials. The mechanical and chemical behaviour of ceramic matrix composites, including nanocomposite materials, has been investigated, and the role of the internal interfaces in these materials has been addressed. My current research interest also includes the structure and properties of polycrystalline cubic boron nitride materials and cemented carbides for cutting tool applications.

Source: chalmers.se

Projects

2014–2016

Effect of interface chemistry and structure on grain morphology and plastic deformation of cemented carbides

Göran Wahnström Department of Applied Physics, Materials and Surface Theory
Martin Gren Department of Applied Physics, Materials and Surface Theory
Hans-Olof Andrén Department of Applied Physics, Materials Microstructure
Lena Falk Department of Applied Physics, Materials Microstructure
Mohamed Amine Yousfi Department of Applied Physics, Materials Microstructure
Swedish Research Council (VR)
Seco Tools
Sandvik Coromant

There might be more projects where Lena Falk participates, but you have to be logged in as a Chalmers employee to see them.

Publications

2015

Atom probe tomography of a Ti-Si-Al-C-N coating grown on a cemented carbide substrate

Mattias Thuvander, Gustaf Östberg, M. Ahlgren et al
Ultramicroscopy. Vol. 159, p. 308-313
Scientific journal article - peer reviewed
2015

Deformation mechanisms in a WC–Co based cemented carbide during creep

Mohamed Amine Yousfi, Jonathan Weidow, Anders Nordgren et al
International journal of refractory metals & hard materials. Vol. 49 (1), p. 81-87
Scientific journal article - peer reviewed
2011

Quantitative atom probe analysis of carbides

Mattias Thuvander, Jonathan Weidow, Jenny Angseryd et al
Ultramicroscopy. Vol. 111 (6), p. 604-608
Scientific journal article - peer reviewed
2009

SiAlON B-Phase Glass-Ceramic Microstructures

Lena K. L. Falk, Y. Menke, S. Hampshire et al
Key Engineering Materials. Vol. 403, p. 103-106
Scientific journal article - peer reviewed
2009

SiAlON Microstructures

Lena K. L. Falk,
Key Engineering Materials. Vol. 403, p. 265-268
Scientific journal article - peer reviewed
2009

Effect of Catalyst Pattern Geometry on the Growth Behaviour of Vertically Aligned Carbon Nanotube Arrays

G.-H. Jeong, N. Olofsson, Lena K. L. Falk et al
Carbon. Vol. 47, p. 696-704
Scientific journal article - peer reviewed
2009

Defocus Convergent Beam Electron Diffraction Analysis of Dislocations in Mullite

Stefan Gustafsson, Lena K. L. Falk,
Journal of Microscopy. Vol. 233 (2), p. 346-351
Scientific journal article - peer reviewed
2009

Development of microstructure during creep of polycrystalline mullite and a nanocomposite mullite/5 vol.% SiC

Stefan Gustafsson, Lena K. L. Falk, J. E. Pitchford et al
Journal of the Eurpean Ceramic Society. Vol. 29 (4), p. 539-550
Scientific journal article - peer reviewed
2009

Alumina / Silicon Carbide Composites Fabricated via in-situ Synthesis of Nano-Sized SiC Particles

Stefan Gustafsson, Lena K. L. Falk, E. Lidén et al
Ceramics International. Vol. 35 (3), p. 1293-1296
Scientific journal article - peer reviewed
2008

Pressureless Sintered Al2O3-SiC Nanocomposites

Stefan Gustafsson, Lena K. L. Falk, E. Lidén et al
Ceramics International. Vol. 34 (7), p. 1609-1615
Scientific journal article - peer reviewed
2008

SiAlON Microstructures

Lena K. L. Falk,
J. Ceram. Soc. Japan. Vol. 116 (6), p. 685-687
Scientific journal article - peer reviewed
2007

The Intergranular Microstructure of Silicon Nitride Based Ceramics

Lena K. L. Falk, N. Schneider, Y. Menke et al
Proceedings of the 31st International Conference on Advanced Ceramics and Composites. Vol. CD
Conference paper - peer reviewed
2007

The Intergranular Oxynitride Microstructure in Silicon Nitride Based Ceramics

Lena K. L. Falk, N. Schneider, S. Hampshire et al
Materials Science Forum . Vol. 554, p. 113-118
Scientific journal article - peer reviewed
2007

Effect of Composition on Crystallisation of Y/Yb-Si-Al-O-N B-Phase Glasses

Y. Menke, Lena K. L. Falk, S. Hampshire et al
J. Am. Ceram. Soc.. Vol. 90 (5), p. 1566-1573
Scientific journal article - peer reviewed
2007

Nucleation and aligned growth of multi-wall carbon nanotube films during thermal CVD

Yiming Yao, Lena K. L. Falk, Raluca. E. Morjan et al
Carbon. Vol. 45, p. 2065-2071
Journal article - popular science
2006

Graphitic encapsulation of catalyst particles in carbon nanotube production

Feng Ding, Arne Rosen, Eleanor E B Campbell et al
Journal of Physical Chemistry B. Vol. 110 (15), p. 7666-7670
Scientific journal article - peer reviewed
2006

Effect of Composition on Crystallisation of Y/Yb-Si-Al-O-N B-Phase Glasses

Y. Menke, Lena K. L. Falk, S. Hampshire et al
J. Am. Ceram. Soc., p. Accepted
Scientific journal article - peer reviewed
2006

The Crystallisation of B-Phase Glass-Ceramics

Lena K. L. Falk, Y. Menke, S. Hampshire et al
Advances in Science and Technology. Vol. 45, p. 30-35
Scientific journal article - peer reviewed
2006

The Effect of Particle Migration on the Creep-rate of Nanocomposites

J. E. Pitchford, E. Lidén, Stefan Gustafsson et al
Key Engineering Materials. Vol. 317-318, p. 445-448
Scientific journal article - peer reviewed
2005

Cross sectional TEM investigation of Ni-catalysed carbon nanotube films grown by plasma enhanced CVD

Yiming Yao, Lena K. L. Falk, Raluca Elena Morjan et al
Journal of Microscopy. Vol. 219, p. 69-75
Journal article - popular science
2005

Si-supportted Fe-Catalyst Film Transformation and Growth of CNT Films by Thermal CVD

Yiming Yao, Lena K. L. Falk, R. E. Morjan et al
6th International Conference on the Science and Application of Nanotubes
Conference poster
2005

Cross-Sectional TEM Investigation of a Ni-Catalysed Carbon Nanotube Film Grown by Plasma Enhanced CVD

Yiming Yao, Lena K. L. Falk, R. E. Morjan et al
6th International Conference on the Science and Application of Nanotubes
Conference poster
2005

Cross-Sectional TEM Investigation of Nickel-Catalysed Carbon Nanotube Films Grown by Plasma Enhanced CVD

Yiming Yao, Lena K. L. Falk, R. E. Morjan et al
Journal of Microscopy. Vol. 219, p. 69-75
Journal article - popular science
2005

The Crystallisation of Er-Si-Al-O-N B-Phase Glass-Ceramics

Yvonne Menke, Lena K. L. Falk, Stuart Hampshire et al
J. Mater. Sci.. Vol. 40, p. 6499-6512
Scientific journal article - peer reviewed
2004

Synthesis of carbon nanotube films by thermal CVD in the presence of supported catalyst particles. Part I: The silicon substrate/nanotube film interface

Yiming Yao, Lena K. L. Falk, Raluca Elena Morjan et al
Journal of Materials Science: Materials in Electronics. Vol. 15 (8), p. 533-543
Journal article - popular science
2004

Synthesis of carbon nanotube films by thermal CVD in the presence of supported catalyst particles. Part II: the nanotube film

Yiming Yao, Lena K. L. Falk, Raluca Elena Morjan et al
Journal of Materials Science: Materials in Electronics . Vol. 15 (9), p. 583-594
Journal article - popular science
2004

High growth rates and wall decoration of carbon nanotubes grown by plasma-enhanced chemical vapour deposition

Raluca Elena Morjan, V. Maltsev, Oleg Nerushev et al
Chemical Physics Letters. Vol. 383/4, p. 385-390
Journal article - popular science
2004

Synthesis of carbon nanotube films by thermal CVD in the presence of supported catalyst particles. Part II: the nanotube film

Yimin Yao, Lena K. L. Falk, Raluca Elena Morjan et al
Journal of Materials Science: Materials for Electronics. Vol. 15, p. 583-594
Scientific journal article - peer reviewed
2004

Synthesis of carbon nanotube films by thermal CVD in the presence of supported catalyst particles. Part I: the siliconsubstrate / nanotube film interface

Yimin Yao, Lena K. L. Falk, Raluca Elena Morjan et al
Journal of Materials Science: Materials for Electronics. Vol. 15, p. 533-543
Scientific journal article - peer reviewed
2004

Synthesis of carbon nanotubes from C60

Raluca Elena Morjan, O.A. Nerushev, Martin Sveningsson et al
Applied Physics A . Vol. 78, p. 253-261
Scientific journal article - peer reviewed
2003

Structure and Catalytic Properties of Nano-Sized Alumina Supported Platinum and Palladium Particles Synthesized by Reaction in Microemulsion

Masatomo Yashima, Lena K. L. Falk, Anders Palmqvist et al
Journal of Colloid and Interface Science. Vol. 268 (2), p. 348-356
Scientific journal article - peer reviewed
2002

Deposition of platinum nanoparticles, synthesized in water-in-oil microemulsions, on alumina supports

Hanna Härelind Ingelsten, Jean-Christophe Béziat, Kristina Bergkvist et al
Langmuir. Vol. 18 (5), p. 1811-1818
Scientific journal article - peer reviewed
2001

Synthesis of Pt Nanoparticles in Microemulsions and their Deposition on g -Al2O3

Anders Palmqvist, Kristina Bergkvist, Hanna Härelind Ingelsten et al
Presented at the 15th Conference of the European Colloid and Interface Society ECIS-2001, Coimbra, Portugal, September 16-21, 2001
Conference paper - peer reviewed