Sökning: "SiO2"

Visar resultat 36 - 40 av 245 avhandlingar innehållade ordet SiO2.

  1. 36. Low-frequency noise in high-k gate stacks with interfacial layer engineering

    Författare :Maryam Olyaei; Bengt Gunnar Malm; Paolo Pavan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CMOS; high k; 1 f noise; low-frequency noise; number fluctuations; mobility fluctuat ions; traps; interfacial layer; TmSiO; Tm 2O3; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : The rapid progress of complementary-metal-oxide-semiconductor (CMOS) integrated circuit technology became feasible through continuous device scaling. The implementation of high-k/metal gates had a significantcontribution to this progress during the last decade. However, there are still challenges regarding the reliability of these devices. LÄS MER

  3. 37. Synthesis and applications of low silica zeolites from Bolivian clay and diatomaceous earth

    Författare :Javier Gustavo Garcia Mendoza; Johanne Mouzon; Niklas Hedin; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zeolites; Synthesis; clay; diatomite; adsorption; ion exchange; Chemical Technology; Kemisk teknologi;

    Sammanfattning : The aim of the present work was to develop synthesis routes to produce synthetic zeolites with industrial attractiveness from non-expensive Bolivian raw materials, such as clays and diatomite. In particular, the work was focused on the synthesis of low-silica zeolites with the LTA and FAU structures. LÄS MER

  4. 38. Light scattering and absorption in pigmented coatings : Theory and experiments

    Författare :William E. Vargas; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Materialvetenskap; Materials science; Teknisk materialvetenskap; Solid State Physics; fasta tillståndets fysik;

    Sammanfattning : Radiative transfer models are used to describe optical properties of polymericthick films containing spherical inhomogeneities with sizes comparable to thewavelength of the incident radiation. From Lorenz-Mie theory various parametersrelated to elastic light scattering and absorption by single particles are calculated, i.e. LÄS MER

  5. 39. Thermodynamic studies of some iron oxide-containing slag systems

    Författare :Patrik Fredriksson; KTH; []
    Nyckelord :;

    Sammanfattning : In the present investigation experimental measurements ofthe thermodynamic activities of iron oxide in the systems:Al2O3-“FeO”, CaO-“FeO”,“FeO”-SiO2 and, CaO-“FeO”-SiO2 wereperformed by using gas equilibration technique. Theexperimental measurements were performed in the temperaturerange 1823-1923 K for the binary systems and, at 1873 K for theternary system respectively. LÄS MER

  7. 40. Synthesis of Zeolites from Bolivian Raw Materials for Catalysis and Detergency Applications

    Författare :Gustavo Garcia; Linda Sandström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Sammanfattning : Zeolites are very useful in many technological applications such as catalysis, separation and purification of gases and solvents, ion-exchange, etc. The production of zeolites is nowadays carried out with a variety of reagents, such starting materials render large scale production of zeolites expensive. LÄS MER