Sökning: "silver coating"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden silver coating.

  1. 1. 3D Coating of Interface Materials for High-Performance RF Passive Devices

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Xiner Shen; [2023]
    Nyckelord :Ceramic coating; Dip coating; Radio frequency; Passive RF devices; Quality factor; Keramisk beläggning; Dip-beläggning; Radiofrekvens; Passiva RF-enheter; Kvalitetsfaktor;

    Sammanfattning : The demand for high-performance Radio Frequency (RF) passive devices has been steadily increasing due to the growing complexity and sophistication of wireless communication systems. The Quality factor (Q-factor) is a key parameter for describing the signal losses and the energy efficiency of resonators. LÄS MER

  3. 2. A GREENER SOLUTION Investigating the potential use of Green Solvents to remove cellulose nitrate lacquer from silver objects

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Borén Evelina; [2022-07-05]
    Nyckelord :Sustainable Conservation; Green Solvents; Cellulose Nitrate; Lacquer; Coating; Silver;

    Sammanfattning : This thesis investigates the performance of non-hazardous solvent substitutes, so called “Green Solvents", for the removal of aged and unaged cellulose nitrate lacquer from silver surfaces. Literature research and preliminary tests resulted in four solvents of interest: ethyl acetate, ethyl lactate, propylene carbonate and dimethyl carbonate. LÄS MER

  4. 3. The Use of Gels for the Removal of Cellulose Nitrate Lacquer on Silver

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Miri Katayon; [2022-07-05]
    Nyckelord :agar gel; metal conservation; nanomaterials; silver coating; sustainable conservation; varnish removal;

    Sammanfattning : The conservation of silver objects mainly constitutes addressing the issues of tarnish removal and of preventing tarnish. For decades lacquer has been used to coat silver objects in order to protect them from tarnishing. LÄS MER

  5. 4. Coating of yarn with PEDOT-PSS : An examination of optimal manufacturing parameters in a dip coating production line for conductive yarn.

    Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Sandra Florén; Alma Pettersson; [2022]
    Nyckelord :PEDOT-PSS; Conductive yarn; dip-coating;

    Sammanfattning : Electrically conductive smart textiles are a very interesting area that could be important for the development of smart textiles. Today, conductive yarns and threads are often produced from coveted metals such as silver, copper and gold. LÄS MER

  7. 5. Screw Joint Analysis in Radio Frequency Filters

    Master-uppsats, KTH/Industriell produktion

    Författare :Nils Löwhagen; [2022]
    Nyckelord :Digital filter; Pre-load force; Clamp torque; Release torque; Surface roughness; Thermal shock test; Digitalt filter; Förspänningskraft; Klämvridmoment; Lossdragningsmoment; Ytjämnhet; Termiskt chocktest;

    Sammanfattning : Filter devices are central elements of radio units utilized for modern-day telecommunication. Leakages of radio waves and passive intermodulation are evolving more prominent as the frequency bands become crowded. LÄS MER