Search Results - "Valden, M."

DLC-treated aramid-fibre composites: Tailoring nanoscale-coating for macroscale performance by Kanerva, M., Korkiakoski, S., Lahtonen, K., Jokinen, J., Sarlin, E., Palola, S., Iyer, A., Laurikainen, P., Liu, X.W., Raappana, M., Tervakangas, S., Valden, M.

“…This work aims to quantify the effect of a diamond-like carbon coating (DLC) treatment of aramid fibres and to reveal the conversion of a fibre-level…”
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Onset of Catalytic Activity of Gold Clusters on Titania with the Appearance of Nonmetallic Properties by Valden, M., Lai, X., Goodman, D. W.

“…Gold clusters ranging in diameter from 1 to 6 nanometers have been prepared on single crystalline surfaces of titania in ultrahigh vacuum to investigate the…”
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Optimization of the electrical properties of Ti–Nb stabilized ferritic stainless steel SOFC interconnect alloy upon high-temperature oxidation: The role of excess Nb on the interfacial oxidation at the oxide–metal interface by Ali-Löytty, H., Jussila, P., Valden, M.

“…Interfacial oxidation of Nb and Si at 650 °C on Laves phase forming Ti–Nb stabilized ferritic stainless steel (Fe–19Cr–0.9Si–0.2Nb–0.1Ti (at.%), grade EN…”
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Fabrication of topographically microstructured titanium silicide interface for advanced photonic applications by Hannula, M., Lahtonen, K., Ali-Löytty, H., Zakharov, A.A., Isotalo, T., Saari, J., Valden, M.

“…We present a widely scalable, high temperature post-growth annealing method for converting ultra-thin films of TiO2 grown by atomic layer deposition to…”
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Anodic Oxidation of Ultra-Thin Ti Layers on ITO Substrates and their Application in Organic Electronic Memory Elements by Heljo, P.S., Wolff, K., Lahtonen, K., Valden, M., Berger, P.R., Majumdar, H.S., Lupo, D.

“…In this work, controlled anodic oxidation is reported for ultra-thin (3nm thick) titanium layers on indium tin oxide (ITO) coated glass substrates. A physical…”
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High power semiconductor disk laser with a semiconductor-dielectric-metal compound mirror by Rantamäki, A., Saarinen, E. J., Lyytikäinen, J., Lahtonen, K., Valden, M., Okhotnikov, O. G.

“…We present optically pumped semiconductor disk lasers with a thin dielectric layer placed between the semiconductor distributed Bragg reflector and the…”
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Effect of surface hydroxyl concentration on the bonding and morphology of aminopropylsilane thin films on austenitic stainless steel by Jussila, P., Ali-Löytty, H., Lahtonen, K., Hirsimäki, M., Valden, M.

“…The adsorption of 3‐aminopropyltrimethoxysilane thin films on Fe18Cr7Mn3Ni (austenitic stainless steel) was investigated by X‐ray photoelectron spectroscopy…”
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Nanoscale surface properties of a Ni–Mn–Ga 10M magnetic shape memory alloy by Aaltio, I., Liu, X.W., Valden, M., Lahtonen, K., Söderberg, O., Ge, Y., Hannula, S-P.

“…► A surface layer of ∼2.5nm and rich in Mn and Ga oxides is established with XPS. ► Nanoindentation is applied on electropolished and mechanically polished…”
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Influence of precipitation on initial high-temperature oxidation of Ti–Nb stabilized ferritic stainless steel SOFC interconnect alloy by Ali-Löytty, H., Jussila, P., Juuti, T., Karjalainen, L.P., Zakharov, A.A., Valden, M.

“…Oxidation phenomena on Laves phase forming Ti–Nb stabilized ferritic stainless steel (EN 1.4509) were studied at 650 °C by electron microscopic and electron…”
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Influence of CrN surface compound on the initial stages of high temperature oxidation of ferritic stainless steel by Ali-Löytty, H., Jussila, P., Hirsimäki, M., Valden, M.

“…► Evolution of surface compounds on Fe–17Cr was studied upon annealing and oxidation. ► CrN surface compound promotes the selective oxidation of Cr at elevated…”
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Scanning tunneling microscopy studies of metal clusters supported on TiO2 (110): Morphology and electronic structure by Lai, X., Clair, T.P.St, Valden, M., Goodman, D.W.

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Influence of minor alloying elements on the initial stages of oxidation of austenitic stainless steel materials by Jussila, P., Lahtonen, K., Lampimäki, M., Hirsimäki, M., Valden, M.

“…Surface oxidation of Fe‐19Cr‐17Ni, Fe‐19Cr‐18Ni‐1Al and TiC‐enriched Fe‐19Cr‐18Ni‐1Al alloys was investigated by photoelectron spectroscopy (PES). The…”
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Structure sensitivity of CO oxidation over model Au/TiO2 catalysts by VALDEN, M, PAK, S, LAI, X, GOODMAN, D. W

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Effect of Ce–Zr mixed oxides on the chemical state of Rh in alumina supported automotive exhaust catalysts studied by XPS and XRD by Suhonen, S., Valden, M., Hietikko, M., Laitinen, R., Savimäki, A., Härkönen, M.

“…Several γ-Al 2O 3 supported Rh catalysts containing Ce–Zr mixed oxides in various proportions were prepared by different manufacturing methods. Both fresh and…”
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Inhibition of initial surface oxidation by strongly bound hydroxyl species and Cr segregation: H2O and O2 adsorption on Fe-17Cr by JUSSILA, P, ALI-LÖYTTY, H, LAHTONEN, K, HIRSIMÄKI, M, VALDEN, M

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Adsorption structure and bonding of trimesic acid on Cu(100) by Kanninen, L., Jokinen, N., Ali-Löytty, H., Jussila, P., Lahtonen, K., Hirsimäki, M., Valden, M., Kuzmin, M., Pärna, R., Nõmmiste, E.

“…Combining scanning tunneling microscopy, X-ray photoelectron spectroscopy, and X-ray absorption spectroscopy using synchrotron radiation, we have studied the…”
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Investigation of the role of oxygen induced segregation of Cu during Cu2O formation on Cu {100}, Ag/Cu {100} and Cu(Ag) alloy by Hirsimaki, M, Lampimaki, M, Lahtonen, K, Chorkendorff, I, Valden, M

“…In this work we have investigated in situ the nanoscale oxide formation on Cu{100}, Ag/Cu{100} surface alloy and polycrystalline Cu(Ag) alloy. The experiments…”
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The effect of iridium precursor on oxide-supported iridium catalysts prepared by atomic layer deposition by Vuori, H., Pasanen, A., Lindblad, M., Valden, M., Niemelä, M. Veringa, Krause, A.O.I.

“…▶ New iridium precursor for atomic layer deposition was tested. ▶ Effect of precursor on catalyst surface species, chemical state and characteristics. ▶ New…”
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Effect of ageing atmosphere on the deactivation of Pd/Rh automotive exhaust gas catalysts: catalytic activity and XPS studies by Lassi, U, Polvinen, R, Suhonen, S, Kallinen, K, Savimäki, A, Härkönen, M, Valden, M, Keiski, R.L

“…In the present work, the catalytic activity and thermal stability of metallic Pd and Rh catalysts have been examined under different ageing atmospheres. It was…”
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Adsorption and diffusion dynamics of atomic and molecular oxygen on reconstructed Cu(100) by Jaatinen, S., Blomqvist, J., Salo, P., Puisto, A., Alatalo, M., Hirsimäki, M., Ahonen, M., Valden, M.

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