Materials Map

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Naji, M.
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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (76/76 displayed)

  • 2024Screening of suitable random copolymer polypropylene blends for HVDC cable insulation3citations
  • 2024Screening of suitable random copolymer polypropylene blends for HVDC cable insulation3citations
  • 2024Characterization of Isotactic-Polypropylene-Based Compounds for HVDC Cable Insulation5citations
  • 2024Characterization of Isotactic-Polypropylene-Based Compounds for HVDC Cable Insulation5citations
  • 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites3citations
  • 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites3citations
  • 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites3citations
  • 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors40citations
  • 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors: morphology-dielectric property relationships, and critical evaluation of the current progress and limitations40citations
  • 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors : morphology-dielectric property relationships, and critical evaluation of the current progress and limitations40citations
  • 2022Biaxially oriented silica-polypropylene nanocomposites for HVDC film capacitors: Morphology-dielectric property relationships, and critical evaluation of the current progress and limitations40citations
  • 2021Dielectric performance of silica-filled nanocomposites based on miscible (PP/PP-HI) and immiscible (PP/EOC) polymer blends14citations
  • 2021Dielectric performance of silica-filled nanocomposites based on miscible (PP/PP-HI) and immiscible (PP/EOC) polymer blends14citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation : Are silica clusters beneficial for space charge accumulation?7citations
  • 2021Dielectric Performance of Silica-Filled Nanocomposites Based on Miscible (PP/PP-HI) and Immiscible (PP/EOC) Polymer Blends14citations
  • 2021Combining good dispersion with tailored charge trapping in nanodielectrics by hybrid functionalization of silica3citations
  • 2021Combining good dispersion with tailored charge trapping in nanodielectrics by hybrid functionalization of silica3citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation: Are silica clusters beneficial for space charge accumulation?7citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation:Are silica clusters beneficial for space charge accumulation?7citations
  • 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectrics4citations
  • 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectrics4citations
  • 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectrics4citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation7citations
  • 2020Silica surface modification with liquid rubbers & functional groups for new polyolefin-based dielectric nano-compositescitations
  • 2020Silica surface modification with liquid rubbers & functional groups for new polyolefin-based dielectric nano-compositescitations
  • 2020On the Silica Surface Modification and Its Effect on Charge Trapping and Transport in PP-Based Dielectric Nanocomposites70citations
  • 2020From Laboratory to Industrial Scale:Comparison of Short- and Long-Term Dielectric Performance of Silica-Polypropylene Capacitor Films1citations
  • 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites2citations
  • 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites2citations
  • 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites2citations
  • 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocomposites1citations
  • 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocomposites1citations
  • 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocomposites1citations
  • 2020Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC?citations
  • 2020Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC?citations
  • 2020From Laboratory to Industrial Scale1citations
  • 2020Silica surface-modification for tailoring the charge trapping properties of PP/POE based dielectric nanocomposites for HVDC cable application25citations
  • 2020From Laboratory to Industrial Scale : Comparison of Short- and Long-Term Dielectric Performance of Silica-Polypropylene Capacitor Films1citations
  • 2019Solution Modified Fumed Silica and Its Effect on Charge Trapping Behavior of PP/POE/Silica Nanodielectrics4citations
  • 2019Surface Modification of Fumed Silica by Plasma Polymerization of Acetylene for PP/POE Blends Dielectric Nanocomposites28citations
  • 2019Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites4citations
  • 2019Investigation of nanocomposite polypropylene for DC capacitors:A feasibility study1citations
  • 2019Silica-Polypropylene Nanocomposites for Film Capacitors2citations
  • 2019Surface Modification of Fumed Silica by Dry Silanization for PP/POE-based Dielectric Nanocomposites1citations
  • 2019Silica-Polypropylene Nanocomposites for Film Capacitors: Structure–Property Studies and the Role of Biaxial Stretching Conditions2citations
  • 2019Surface Modification of Fumed Silica by Dry Silanization for PP-based Dielectric Nanocomposites10citations
  • 2019Investigation of Nanocomposite Polypropylene for DC Capacitors: A Feasibility Study1citations
  • 2019Silica-Polypropylene Nanocomposites for Film Capacitors:Structure–Property Studies and the Role of Biaxial Stretching Conditions2citations
  • 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Films4citations
  • 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Films4citations
  • 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Films4citations
  • 2018Effect of temperature and humidity on dielectric properties of thermally sprayed alumina coatings20citations
  • 2018Effect of temperature and humidity on dielectric properties of thermally sprayed alumina coatings20citations
  • 2018Short-Term Dielectric Performance Assessment of BOPP Capacitor Films: A Baseline Study12citations
  • 2017The Role of Film Processing in the Large-Area Dielectric Breakdown Performance of Nano-Silica-BOPP Films3citations
  • 2017Large-area approach to evaluate DC electro-thermal ageing behavior of BOPP thin films for capacitor insulation systems30citations
  • 2017Nanocomposite Polypropylene For DC Cables And Capacitors6citations
  • 2017Nanocomposite Polypropylene For DC Cables And Capacitors:A New European Project6citations
  • 2017DC conduction and breakdown behavior of thermally sprayed ceramic coatings10citations
  • 2017Aspects of moisture ingress in polymer housed surge arresters5citations
  • 2016Differences in AC and DC large-area breakdown behavior of polymer thin films14citations
  • 2016Role of microstructure in dielectric properties of thermally sprayed ceramic coatings7citations
  • 2016Dielectric breakdown properties of mechanically recycled SiO2-BOPP nanocomposites8citations
  • 2015Electric field dependency of dielectric behavior of thermally sprayed ceramic coatings8citations
  • 2015DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites9citations
  • 2015DC Dielectric Breakdown Behavior of Thermally Sprayed Ceramic Coatings4citations
  • 2015Effects of thermal aging on the characteristic breakdown behavior of nano-SiO2-BOPP and BOPP films8citations
  • 2015Large-area dielectric breakdown performance of polymer films:Part II: Interdependence of filler content, processing and breakdown performance in polypropylene-silica nanocomposites38citations
  • 2015Large-area dielectric breakdown performance of polymer films:Part I: Measurement method evaluation and statistical considerations on area-dependence49citations
  • 2015Large-area dielectric breakdown performance of polymer films - Part II38citations
  • 2015Dielectric Breakdown Strength of Thermally Sprayed Ceramic Coatings15citations
  • 2015Large-area dielectric breakdown performance of polymer films - Part I: Measurement method evaluation and statistical considerations on area-dependence49citations
  • 2015The role of film processing in the large-area dielectric breakdown performance of nano-silica-BOPP films3citations
  • 2014Influence of humidity and temperature on the dielectric properties of thermally sprayed ceramic MgAl2O4 coatings10citations
  • 2014Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylene5citations
  • 2013Dielectric properties of HVOF sprayed ceramic coatings8citations

Places of action

Chart of shared publication
Wurm, Frederik
4 / 5 shared
Mazzanti, Giovanni
4 / 5 shared
Saarimaki, Eetta
13 / 22 shared
Rytöluoto, Ilkka
65 / 68 shared
Niittymaki, Minna
13 / 13 shared
Mourad, Maya
4 / 4 shared
Leproux, Anais
4 / 4 shared
Rheinberger, Timo
4 / 8 shared
Diban, Bassel
4 / 5 shared
Seri, Paolo
31 / 34 shared
Paajanen, Mika
53 / 83 shared
Anyszka, Rafal
32 / 33 shared
Saarimäki, Eetta
33 / 42 shared
Niittymäki, Minna
32 / 33 shared
Palmieri, Lorenzo
2 / 2 shared
La Zara, Damiano
2 / 4 shared
Blume, Anke
29 / 36 shared
Dierkes, Wilma
32 / 35 shared
Mahtabani, Amirhossein
32 / 36 shared
Saedy, Saeed
3 / 3 shared
He, Xiaozhen
32 / 36 shared
Van Ommen, J. Ruud
2 / 4 shared
Zara, Damiano La
1 / 1 shared
Ommen, J. Ruud Van
1 / 2 shared
Flyktman, Timo
8 / 10 shared
Naderiallaf, Hadi
20 / 21 shared
Perego, Gabriele
10 / 10 shared
Mazel, Christelle
10 / 10 shared
Rytoluoto, Ilkka
2 / 2 shared
Anyszka, Rafał
4 / 9 shared
Pelto, Jani
4 / 30 shared
Montanari, Gian Carlo
6 / 7 shared
Karttunen, Mikko
18 / 42 shared
Carlo Montanari, Gian
1 / 1 shared
Ritamäki, Mikael
9 / 11 shared
Ritamaki, Mikael
2 / 2 shared
Suhonen, Tomi
9 / 50 shared
Metsajoki, Jarkko
1 / 2 shared
Metsäjoki, Jarkko
8 / 33 shared
Karttunen, Mikka
1 / 1 shared
Vestberg, Torvald
1 / 2 shared
Pasanen, Satu
2 / 5 shared
Buontempo, Rodolfo Cardoso
1 / 1 shared
Filho, José Pissolato
1 / 1 shared
Silva, Daiana Antonio Da
1 / 1 shared
Pettersson, Mika
2 / 8 shared
Virtanen, Suvi
2 / 12 shared
Koponen, Matti
3 / 7 shared
Karttunen, M.
1 / 2 shared
Virtanen, S.
1 / 11 shared
Koponen, M.
2 / 2 shared
Pettersson, M.
1 / 4 shared
Kanerva, Ulla
2 / 22 shared
Chart of publication period
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2023
2022
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2020
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2018
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2016
2015
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Co-Authors (by relevance)

  • Wurm, Frederik
  • Mazzanti, Giovanni
  • Saarimaki, Eetta
  • Rytöluoto, Ilkka
  • Niittymaki, Minna
  • Mourad, Maya
  • Leproux, Anais
  • Rheinberger, Timo
  • Diban, Bassel
  • Seri, Paolo
  • Paajanen, Mika
  • Anyszka, Rafal
  • Saarimäki, Eetta
  • Niittymäki, Minna
  • Palmieri, Lorenzo
  • La Zara, Damiano
  • Blume, Anke
  • Dierkes, Wilma
  • Mahtabani, Amirhossein
  • Saedy, Saeed
  • He, Xiaozhen
  • Van Ommen, J. Ruud
  • Zara, Damiano La
  • Ommen, J. Ruud Van
  • Flyktman, Timo
  • Naderiallaf, Hadi
  • Perego, Gabriele
  • Mazel, Christelle
  • Rytoluoto, Ilkka
  • Anyszka, Rafał
  • Pelto, Jani
  • Montanari, Gian Carlo
  • Karttunen, Mikko
  • Carlo Montanari, Gian
  • Ritamäki, Mikael
  • Ritamaki, Mikael
  • Suhonen, Tomi
  • Metsajoki, Jarkko
  • Metsäjoki, Jarkko
  • Karttunen, Mikka
  • Vestberg, Torvald
  • Pasanen, Satu
  • Buontempo, Rodolfo Cardoso
  • Filho, José Pissolato
  • Silva, Daiana Antonio Da
  • Pettersson, Mika
  • Virtanen, Suvi
  • Koponen, Matti
  • Karttunen, M.
  • Virtanen, S.
  • Koponen, M.
  • Pettersson, M.
  • Kanerva, Ulla
OrganizationsLocationPeople

article

DC conduction and breakdown behavior of thermally sprayed ceramic coatings

  • Metsäjoki, Jarkko
  • Lahti, Kari
  • Suhonen, Tomi
  • Niittymäki, Minna
Abstract

In this study, the DC conductivity from low electric fields up to breakdown fields is studied for several different thermally sprayed ceramic coatings. Although the DC conductivity of bulk alumina ceramic has been observed to follow the space charge limited current conduction mechanism, the studied ceramic coatings do not follow or follow only partly this mechanism. Possible reason for this is their different microstructure since bulk alumina exhibits fully crystalline microstructure while the ceramic coating consists of crystalline and amorphous regions as well as voids, defects and numerous interfaces. A possible conduction mechanism of the ceramic coatings based on the different conductivities of the amorphous and crystalline regions of the coatings is proposed. The microstructural features (e.g. volumetric porosity) are found to affect the breakdown strength for some of the studied coatings. The step-test breakdown strengths of the coatings were lower than the ramp-test ones due to the longer stress durations in step tests giving an indication of effects of electrical stress duration and possible short-term degradation of the coatings. ; Peer reviewed

Topics
  • impedance spectroscopy
  • amorphous
  • strength
  • void
  • porosity
  • ceramic