Essays about: "chromia"

Showing result 1 - 5 of 10 essays containing the word chromia.

  1. 1. Investigation of high temperature stability of additive manufactured austenitic stainless steels for space applications

    University essay from Luleå tekniska universitet/Materialvetenskap

    Author : Belén Alonso Rancurel; [2023]
    Keywords : austenitic stainless steel; additive manufacturing; high temperature corrosion; high temperature stability;

    Abstract : Additive manufacturing (AM) techniques are being studied for their application in the aerospace industry. Numerous benefits come from the already in shape final piece, which needs reduced amount of prime material for its production and can have its shape numerically optimized for weight reduction. READ MORE

  3. 2. Chromia-Alumina Thin Films from Alkoxide Precursors : From Precursor Synthesis to Deposition and Characterisation

    University essay from Uppsala universitet/Oorganisk kemi

    Author : Elina Elvelo; [2023]
    Keywords : alkoxide; synthesis; thin film; coating; alumina; chromia; spinodal decomposition;

    Abstract : A hetero-bimetallic alkoxide CrAl3(OiPr)12 was synthesised through metathesis of achromium(III)chloride THF complex (CrCl3 . 3 THF) and 3 KAl(OiPr)4.It was used as a single sourceprecursor to make oxide powders and films with 1:3 chromium/aluminium compositionthrough sol-gel synthesis. READ MORE

  4. 3. Microstructure characteristics and tribological behaviour of plasma sprayed ceramic coatings

    University essay from Högskolan Väst/Institutionen för ingenjörsvetenskap

    Author : Luigi Fadini; [2023]
    Keywords : Thermal spray; APS; SPS; tribology; wear resistant ceramic coatings;

    Abstract : Surface engineering is increasingly becoming inevitable for meeting the high-performance requirements constantly expected from modern engineering components. Higher demands for combined functionalities, which a base material alone cannot provide, motivate intensive academic studies on various types of coatings, with the ultimate objective of their practical utilisation in industries. READ MORE

  5. 4. Optimization and Characterization of Luminescent Materials for the ESS Proton Beam Imaging System

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Emelie Wiklund; Anton Järild; [2021]
    Keywords : Chemical Engineering; Luminescent materials; Cr-doped Alumina; Proton Beam Imaging System; ESS; Chemistry; Technology and Engineering;

    Abstract : Spallation sources such as European Spallation Source (ESS) produces neutrons by bombarding high-energy protons onto the target wheel. To determine the location of the proton beam a Proton Beam Imaging (PBI) system will be installed. READ MORE

  6. 5. Reliable Carburization of AISI H13 Steel : The Impact of Preoxidation

    University essay from KTH/Materialvetenskap

    Author : Martin Palm; [2020]
    Keywords : Preoxidation; Case hardening; Uddeholm Orvar® Superior; Passive oxide layers; Iron oxides; Carbon adsorption;

    Abstract : Case hardened Uddeholm Orvar® Superior (Orvar) has the potential to replace currently used materials in shafts inside transmissions, which would lower the overall weight and thus result in lower fuel consumption while maintaining the necessary mechanical properties. However, previous studies have failed to reliably carburize the steel during the case hardening process. READ MORE