Blar i NTNU Open på forfatter "Walle, Lars Erik"
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Core-Level Binding Energy Reveals Hydrogen Bonding Configurations of Water Adsorbed on TiO2 (110) Surface
Kamal, C.; Stenberg, Nader; Walle, Lars Erik; Ragazzon, Davide; Borg, Anne; Uvdal, Per; Skorodumova, Natalia V.; Odelius, Michael; Sandell, Anders (Peer reviewed; Journal article, 2021)Using x-ray photoelectron spectroscopy of the oxygen 1s core level, the ratio between intact (D2O) and dissociated (OD) water in the hydrated stoichiometric TiO2ð110Þ surface is determined at varying coverage and temperature. ... -
Experimental Study of Fracture Toughness in Sedimentary Rocks
Brevik, Niklas Øystad (Master thesis, 2016)This master thesis details the determination of mode I (tensile) fracture toughness, KIC, using the International Society of Rock Mechanics (ISRM) Chevron Bend (CB) method on three sedimentary rock types. Fracture toughness ... -
Laboratory Measurements of Strength Parameters for Fracturing
Walle, Lars Erik; Stroisz, Anna Magdalena; Brevik, Niklas Øystad; Jensen, Stina Stokmo; Holt, Rune Martin (Chapter, 2017)Fracture toughness and tensile strength are rock parameters that have influence on hydraulic fracture initiation and propagation, and that to various degrees are implemented in fracture modeling tools. Laboratory measurements ... -
Surface science studies of TiO2 single crystal systems
Walle, Lars Erik (Doktoravhandlinger ved NTNU, 1503-8181; 2009:239, Doctoral thesis, 2009)Titanium dioxide is a material finding applications in variety of areas, including catalysis, photocatalysis, photovoltaics, energy storage, gas sensors and biocompatible materials. As a consequence, this material has been ...