Essays about: "Zr C"

Showing result 1 - 5 of 11 essays containing the words Zr C.

  1. 1. Development of a modern catalytic system for the production of C3+ aliphatic alcohols by the Fischer-Tropsch method

    University essay from KTH/Energiteknik

    Author : Aravind Ganesan; [2019]
    Keywords : syngas; Cobalt; Fischer-Tropsch; alcohols; hydrocarbons; syngas; kobolt; Fischer-Tropsch; alkoholer; kolväten;

    Abstract : This thesis deals with converting a mixture of H2 and CO, also referred to as syngas or producer gas, to higher or mixed alcohols and other fuels through a process called Fischer Tropsch Synthesis (FTS). It is a beneficial pathway that minimizes the dependence on oil and similar fossil fuels which contribute to rapid climate change by releasing harmful greenhouse gases. READ MORE

  2. 2. Application of some modern analytical techniques for investigations of non-metallic inclusions in steel samples

    University essay from KTH/Materialvetenskap

    Author : Wan Zhiyue; [2018]
    Keywords : Non-metallic Inclusions; Electrolytic Extraction; Fractional Gas Analysis; Zirconium Addition; Calcium Treatment;

    Abstract : The non-metallic inclusions (NMI) have large influence on steel properties. Therefore, evaluation of inclusion size, number, composition and morphology by using modern analytical techniques are very important for control of steel production and steel quality. Three dimensional analysis method of electrolytic extraction is applied in this work. READ MORE

  3. 3. Investigation of new materials and methods to reduce corrosion of stainless steel in contact with molten chloride salts.

    University essay from Luleå tekniska universitet/Materialvetenskap

    Author : Clara Linder; [2017]
    Keywords : Corrosion; chloride salts; stainless steel; zirconium;

    Abstract : In this study, the corrosion resistance of three different stainless steels (304, 316 and 309) towards eutectic chloride salts is investigated. The performances of two materials to reduce the corrosion of the steels are examined: zirconium as sacrificial anode and an Al2O3 coating deposited by flame spraying. READ MORE

  4. 4. U-Pb geochronology and geochemistry of host rocks to the Bastnäs-type REE mineralization in the Riddarhyttan area, west central Bergslagen, Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Wictor Linders; [2016]
    Keywords : Riddarhyttan; REE; Metavolcanic rocks; LA-ICP-MS; Zircon; Monazite.; Earth and Environmental Sciences;

    Abstract : The geochronology of felsic metavolcanic rocks hosting the Bastnäs-type rare earth element (REE) mineralization in the Riddarhyttan area in the Bergslagen region, Sweden, was investigated using Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) U-Th-Pb on zircon and monazite. U-Pb data from four host rock samples yield dates of 1899 ± 4 Ma (MSWD=2. READ MORE

  5. 5. Deposition of Zr(C,N) Coatings by Chemical Vapour Deposition

    University essay from KTH/Materialvetenskap

    Author : Linn Efsing; [2015]
    Keywords : Zr C; N ; MTCVD; Milling inserts; Coating; Growth rate; Microstructure; Texture coefficients;

    Abstract : In this master thesis the influence from process parameters within the Chemical vapour deposition process for a Zirconium Carbon-Nitride coating was investigated regarding growth rate, microstructure and texture. The interest in utilizing Zirconium Carbon-Nitride (Zr(C,N)) is due to its low coefficient of thermal expansion (CTE) relative the currently commonly used wear resistant coatings of Titanium-Carbon-Nitride (Ti(C,N)). READ MORE