Search for dissertations about: "diamond anvil cell"

Showing result 1 - 5 of 14 swedish dissertations containing the words diamond anvil cell.

  1. 1. Thermal Conductivity of Materials under Conditions of Planetary Interiors

    Author : Zuzana Konôpková; Peter Lazor; Vitali Prakapenka; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; iron; high pressures-high temperatures; thermal conductivity; diamond anvil cell; laser-heating; planetary cores; Earth sciences; Geovetenskap;

    Abstract : The presented thesis focuses on study of transport and thermoelastic properties of materials under conditions of planetary interiors by means of high-pressure experimental tools and finite element modeling, and their role in the dynamics and states of cores of terrestrial planets. Experiments in laser-heated diamond anvil cell (LHDAC) in combination with numerical simulations of heat transfer in DAC are shown to yield information on thermal conductivity of a pressurized sample. READ MORE

  2. 2. Optical and Raman Spectroscopic Studies on H2O at High Pressure

    Author : Sara Nanna Kristina Sundberg; Peter Lazor; Oleg Kuskov; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Earth sciences; H2O; diamond anvil cell; equations of state; Raman spectroscopy; interferometry; Geovetenskap; Earth sciences; Geovetenskap;

    Abstract : In this thesis, volumetric, optical and vibrational properties of H2O were studied at high pressures by combining techniques of Raman spectroscopy, interferometry and optical imaging. Pressures up to 7 GPa were generated in the diamond anvil cell (DAC), entering the stability fields of liquid water and ices VI, VII and VIII. READ MORE

  3. 3. Magnetotransport Measurements of Ni Thin Films

    Author : Shawn Alexander Boye; Peter Lazor; Hans Annersten; Per Nordblad; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Earth sciences; magnetoresistance; Hall effect; diamond anvil cell; magnon scattering; band ferromagnetism; nickel; Geovetenskap; Earth sciences; Geovetenskap;

    Abstract : This thesis presents transverse magnetoresistance (MR) and Hall resistivity measurements of nickel thin films at temperatures between 280 and 455 K and pressures up to 6 GPa. An experimental system was developed for conducting precise magnetotransport measurements using the current reversal and van der Pauw techniques in combination with a 10 T superconducting magnet. READ MORE

  4. 4. Experimental investigation of hydrocarbon formation and transformation under Earth´s upper mantle conditions

    Author : Anton Kolesnikov; Vladimir Kutcherov; Bertil Sundqvist; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; theory of deep abiotic petroleum origin; natural gas; hydrocarbons; methane; ethane; graphite; hydrogen; high pressure; high temperature; CONAC; BARS; diamond anvil cell; Raman; X-ray; gas chromatography; Engineering mechanics; Teknisk mekanik;

    Abstract : The theory of the abyssal abiotic petroleum origin considers oil and natural gas to begenerated in the Earth’s upper mantle. Hydrocarbons migrate further through the deep faults into the Earth’s crust, where they can form oil and gas deposits in any kind of rock in any kind of structural position. READ MORE

  5. 5. The role of deep hydrocarbons in the global hydrocarbon budget

    Author : Daniil Kudryavtsev; Vladimir Kutcherov; Kostya Trachenko; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrocarbons; non-methane volatile hydrocarbons; carbon dioxide; methane; ethane; propane; butane; global warming; diamond-anvil cells; Raman spectroscopy; high pressure; high temperature; phase transition; Energiteknik; Energy Technology;

    Abstract : Nowadays, the issue of global warming and related environmental problems got widespread awareness among scientific society, politics, the industry as well as it has affected our everyday life. The reason for such a negative impact on the atmosphere is attributed mainly to human activities. READ MORE