Essays about: "Lead-free"

Showing result 6 - 10 of 16 essays containing the word Lead-free.

  1. 6. Preparation and Characteristics of Bi0.5Na0.5TiO3 based Lead-Free thin films by Pulsed Laser Deposition

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Ge Jiang; [2018]
    Keywords : PLD method; piezoelectric thin film; electrical properties; PLD-metoden; piezoelektrisk tunnfilm; elektriska egenskaper;

    Abstract : Lead-based piezoelectric materials, such as PbZrxTi1-xO3 (PZT), have attracted considerable attention and have been widely used in actuators, sensors and transducers due to their excellent electric properties. However, considering the toxicity of lead and its oxides, environmentally friendly lead-free piezoelectric materials are attracting more attention as potential replacements for PZT. READ MORE

  3. 7. Microstructure-corrosion interrelations in new low-lead and lead-free brass alloys

    University essay from KTH/Materialvetenskap

    Author : Emil Stålnacke; [2017]
    Keywords : Brass; dezincification; annealing; detrimental phases; heat treatment; microstructure;

    Abstract : In new low-lead and lead-free brass alloys, it is not understood how the corrosion properties,such as dezincification, are related to material composition as well as annealing temperatureand duration. This study aims to fill this knowledge gap by mapping sixteen annealingconditions and three different brass alloy compositions to their respective microstructure anddezincification performance. READ MORE

  4. 8. PHM Approaches for Reliability of ECUs : Analyses of Canaries and Real-Time Data Acquisition

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Gabriel Dag; [2017]
    Keywords : solder joint; vibration; thermal cycling; microcontroller;

    Abstract : Today, Scania CV AB is facing challenging demands on functionality and performance within their vehicles. The electronics are increasing rapidly and to stay competitive on the market, concerns regarding reliability of electronic systems needs to be evaluated. READ MORE

  5. 9. Replacement of Lead in a Norma Precision AB Hunting Bullet

    University essay from KTH/Materialvetenskap

    Author : Christopher Petersson; Trydell Klara; [2017]
    Keywords : Lead free bullet; Environmentally sustainable hunting bullet; Properties of a lead core hunting bullet; Alloys to replace lead;

    Abstract : .... READ MORE

  6. 10. Study and analysis of surface layer characteristics of lead brass and lead free brass

    University essay from Högskolan i Halmstad/Maskinteknisk produktframtagning (MTEK)

    Author : Dharmendra Challapalli; Ahmad El-masri; [2016]
    Keywords : Lead free Brass; surface integrity; subsurface deformation; microhardness.;

    Abstract : The addition of lead to the copper alloys increase the machinability of thework material (without reference here to environmental factors) and reduces the overall production cost of the components at different stages, despite copper being expensive, which makes a challenging task to replace lead. Since lead is dangerous to human health. READ MORE