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Diploma work at Nanostructured Materials

Synthesis of new hard coatings by PVD

A Master thesis work at Sandvik. Read more about iit here.

Magnetron sputtered nanostructures

Independent control of deposition parameters during Magnetron sputter deposition technique facilitates synthesis of metastable compounds and design of micro/nano-structured materials. Our present focus is knowledge-gain in diffusion kinetics leading to self-assembly of immiscible nitride thin films and understanding of the underlying physics of phase transformations. The structural and mechanical analysis of sputtered films involves extensive characterization using a variety of experimental techniques.

Dr. Naureen Ghafoor: naugh@ifm.liu.se

Arc evaporated hard coatings

Hard coatings are commonly used for protective purposes, for example in the cutting tool industry. Within this project, coatings grown by cathodic arc evaporation are studied to improve the understanding of growth conditions, microstructure and chemical composition on the mechanical properties of the coatings.

Dr. Lina Rogström: linro@ifm.liu.se

Mesoporous structures

Mesoporous materials are materials with pores in the size range 2-50 nm and are usually made by chemical synthesis. These materials have high surface areas and we work with materials such as SiO2,, ZrO2, and TiO2. The materials can be used for many different applications such as catalysis, nanoparticle synthesis and drug delivery.

 Dr. Emma Björk: emma.bjork@liu.se

Cutting tools

Nanostructured coating materials with designed properties on cutting tools offers unique possibilities for improved machining performance and productivity in a wide range of industrial applications, e.g., turning, milling and drilling. Our focus is to study the details of the wear behavior and properties of coated tools in real cutting experiments as well as in dedicated experimental setups with the perspective to improve the metal cutting performance in well-defined applications.

Dr. Mats Johansson: mats.johansson@secotools.com

Phase field modeling of nanostructures

Phase-field modeling is a numerical tool to model microstructure evolution in nanostructured materials.  Our present focus is to study spinodal decomposition in TiAlN. With information from experiments and parameters from ab initio calculations we can simulate how the microstructure evolves with time during spinodal decomposition.

Dr. Klara Grönhagen: klagr@ifm.liu.se

Ab-initio modeling of elasticity in hard coating materials

A general mechanical characteristic of materials is their anisotropic elastic behavior. Understanding elastic requires a rigorous mathematical description (based on the language of tensors) and atomistic arguments to quantify the property coefficients in various directions. Though ab-initio quantum mechanical calculation of such tensors in single crystals is done routinely, the same task for disordered alloys is still under theoretical development.

In the project we focus on predicting the elastic constants of several binary and ternary alloys with high industrial impact. The work is done on modern powerful supercomputers. The project provides the conditions to master yourself in the modern theory of alloys including the rigorous tensorial representation of anisotropic materials quantities. The work is conducted in collaboration with the project Phase field modeling of nanostructures.

Dr. Ferenc Tasnádi: tasnadi@ifm.liu.se

Nanostructure evolution

The nanostructures referred to here are solids with a microstructure that is characterized with features in the nm-range. We study how they are formed and how they evolve under the influence of temperature and pressure with the purpose to understand the driving forces and in a longer perspective improve the material’s properties.

Prof. Magnus Odén: magod@ifm.liu.se

Responsible for this page: Emma Björk

Last updated: 11/17/16