Mats Halvarsson
As I work in the Division for Materials Microstructure at the Department of Physics it is perhaps not surprising that my main research tools are electron microscopes and their add-on equipment. The general aim is to understand how the microstructure of materials influences their properties. And of course to have ideas about how the microstructure could be changed in order to get improved performance.
I work mainly with what is happening at, or near, the surface of a material when it is in use. It concerns various different research areas, such as (i) hard, wear protective coatings produced by Chemical Vapour Deposition (CVD) or Physical Vapour Deposition (PVD), (ii) high temperature corrosion of alloys and composites, (iii) atmospheric corrosion of light metals and (iv) mesoporous films on implants.
Showing 120 publications
Facet identification in textured polycrystalline coatings by EBSD-aided SEM trace analysis
Role of surface morphology on bed material activation during indirect gasification of wood
Intergranular oxidation of additively manufactured Ni-base alloy 625: The role of Si
Decomposition pathways in nano-lamellar CVD Ti
Low-pressure CVD of (Tix,W1-x)Ny from WF6, TiCl4 and NH3
Efficacy of an external chromia layer in reducing nitridation of high temperature alloys
CVD TiAlN coatings with tunable nanolamella architectures
Should the oxygen source be considered in the initiation of KCl-induced high-temperature corrosion?
Microstructure investigation of textured CVD alumina coatings
Effects of gas flow on detailed microstructure inhomogeneities in LPCVD TiAlN nanolamella coatings
Chemical vapor deposition of TiN on a CoCrFeNi multi-principal element alloy substrate
Exploring failure modes of alumina scales on FeCrAl and FeNiCrAl alloys in a nitriding environment
Interplay of water and reactive elements in oxidation of alumina-forming alloys
Transformation of amorphous calcium phosphate to bone-like apatite
Influence of Multi-Pass Friction Stir Processing on the Corrosion Behavior of an Al-Mg-Si Alloy
A new semi-solid casting technique for fabricating SiC-reinforced Mg alloys matrix composites
New insights into the corrosion of magnesium alloys - The role of aluminum
On the microstructure and corrosion behavior of AZ91/SiC composites produced by rheocasting
Bobbin and conventional friction stir welding of thick extruded AA6005-T6 profiles
Corrosion behaviour of friction stir-welded AA6005-T6 using a bobbin tool
Effect of Rheocasting on Corrosion of AM50 Mg Alloy
First Three-Dimensional Atomic Resolution Investigation of Thermally Grown Oxide on a FeCrAl Alloy
Ex vivo alendronate localization at the mesoporous titania implant/bone interface
Deformation and texture evolution of OFHC copper during dynamic tensile extrusion
Oxidation of Sanicro 25 (42Fe22Cr25NiWCuNbN) in O2 and O2 + H2O Environments at 600-750°C
Influence of temperature on the atmospheric corrosion of the Mg–Al alloy AM50
Effect of thermal cycling on protective properties of alumina scale grown on thin Haynes 214 foil
Localized controlled drug delivery from mesoporous implants
NaCl-Induced Atmospheric Corrosion of the MgAl Alloy AM50-The Influence of CO2
Oxidation of Co- and Ce-nanocoated FeCr steels: A microstructural investigation
Oxidation behavior of a Mo(Si,Al)2 composite at 900–1600 C in dry air
High temperature oxidation of chromium: Kinetic modeling and microstructural investigation
Oxidation studies of Fe10CrAl-RE alloys exposed to Pb at 550 degrees C for 10,000 h
In vivo biomechanical stability of osseointegrating mesoporous TiO2 implants
Oxidation Behaviour of Sanicro 25 (42Fe22Cr25NiWCuNbN) in O-2/H2O Mixture at 600 degrees C
CVD TiC/alumina multilayer coatings grown on sapphire single crystals
In vitro response to mesoporous TiO2 thin films loaded with alendronate and raloxifene
Oxidation behaviour of a Mo(Si,Al)2 based composite at 1500 degrees C
Oxidation behavior of a Mo (Si, Al)(2)-based composite at 300-1000 degrees C
Oxidation behavior at 300–1000C of a (Mo,W)Si2-based composite containing boride
CVD TiC/alumina and TiN/alumina multilayer coatings grown on sapphire single crystals
Oxidation of iron at 400-600 °C in dry and wet O2
An ESEM in-situ investigation of the influence of H
TEM Investigation of Alpha Alumina Films Deposited at Low Temperature
Grain contrast imaging in FIB and SEM
Paralinear Oxidation of Chromium in O2 + H2O Environment at 600–700 °C
The influence of H2O on iron oxidation at 600?C: a microstructural study.
The effect of traces of SO2 on iron oxidation: A microstructural study
TEM and DFT investigation of CVD TiN/κ–Al2O3 multilayer coatings
Influence of H2O(g) on the Oxide Microstructure of the Stainless Steel 353MA at 900°C in Oxygen.
Microstructural Investigation of Protective and Non-Protective Oxides on 11% Chromium Steel
Microstructural investigation of chips formed during metal cutting
The microstructure of CVD κ-Al2O3 multilayers separated by thin intermediate TiN or TiC layers
High resolution chemical analysis in SEM
SEM investigation of reactive element particles on the surface of Kanthal AF oxidized at 900°C
TEM investigation of the base oxide formed on FeCrAl at 900°C in dry O2 and O2 with 40% H2O
Microstructural investigation of the influence of KCl on the corrosion of 304L exposed to 5% O2 + N2
The Formation of Oxide Scale on FeCrAl at 900°C in dry O2 and O2 + 40% H2O
Oxidation of FeCrAl alloys at 500-900 degrees C in dry O-2
The beneficial effect of water vapour on the oxidation at 600 and 700 °C of a MoSi2-based composite
Comparison of the oxidation behaviour of surface and inner bulk material of a MoSi2 based composite
The influence of water vapor on the oxidation of MoSi2 at 450 °C
On the Mechanism of MoSi2 Pesting in the Temperature Range 400–500°C
An Investigation of the Microstructure in the Pest Oxide of a MoSi2- Based Composite
Theoretical Structure Determination of a Complex Material: κ-Al2O3
The microstructure of chemically vapour deposited AL2O3 coatings
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Showing 12 research projects
High-performance nano-structured CVD TiAlN coated cutting tools for difficult-to-cut materials
In-situ high-temperature synchrotron XRD on CVD AlTiN coatings: an industrial case study
Nanodiffraktionsundersökning av spänningsgradienter itexturerade CVD alfa-aluminiumoxidskikt
Developing next generation high temperature MoSi2 materials
Methane recovery and harnessing for energy and chemical uses at coal mine sites
Nedbrytningsmekanismer för CVD-skikt vid metallbearbetning
CVD 2.0 - En ny generation av hårda beläggningar
Research collaboration within the field of hard, wear-resistant coatings