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Showing 1 to 7 of 7 for “"Passive Oxidation"”.

  1. The effect of lubricant derived ash on the catalytic activity of diesel particulate filters

    … in a direct fuel penalty to the engine. The oxidation of soot can be carried out actively at high temperatures or passively at low temperatures with the aid of a catalyst. Active regeneration requires more energy than passive regeneration because the stream of exhaust gas must be heated to a …

    mit Repository record for The effect of lubricant derived ash on the catalytic activity of diesel particulate filters (opens in a new tab)

  2. A Computational Thermo-Chemo-Mechanics Framework for the Large-Scale Simulation of Material and Structural Failure in Hypersonic Environments

    … We utilize this framework to render models of passive oxidation-induced fracture in ultrahigh temperature ceramics computationally tractable. First, a rigorous constitutive theory is shown to capture the molecular diffusion of oxidant through the reaction product layer using only fundamental …

    mit Repository record for A Computational Thermo-Chemo-Mechanics Framework for the Large-Scale Simulation of Material and Structural Failure in Hypersonic Environments (opens in a new tab)

  3. Iron nanoparticles and zirconium metal-organic frameworks for therapeutic application

    … thereof. Use of single surfactants led to passive oxidation of the synthesised particles. However, deployment of a dual surfactant reaction medium led to the synthesis of core@shell Fe@Fe3O4 NPs which resisted progressive oxidation of the core for > 6 months. Microscopic studies revealed a …

    cambridge Repository record for Iron nanoparticles and zirconium metal-organic frameworks for therapeutic application (opens in a new tab)