Sökning: "thermal deflection"

Visar resultat 11 - 15 av 19 avhandlingar innehållade orden thermal deflection.

  1. 11. Modeling Carbon Nanotube Field Effect Transistors with Fixed and Suspended Nanotube Gates

    Författare :Yury Tarakanov; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Carbon nanotubes (CNT) exhibit a range of properties that make them well suited for nanoelectronic and nanoelectromechanical devices. One-dimensional field effect transistors based on single-walled CNTs have demonstrated excellent electrical characteristics and are competitive with silicon-based solutions, and oscillators based on suspended CNTs have been shown to work at gigahertz frequencies with Q-factors exceeding 10$^3$. LÄS MER

  3. 12. Mechanical considerations in the design of high-precision surface micromachined devices

    Författare :Staffan Greek; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Sammanfattning : Many mechanical properties of surface micromachined devices, such as strength and elastic properties, depend on the manufacturing process and are therefore unique to the device. In order to achieve higher precision, it is essential that correct mechanical characteristics are used in the work of designing devices. LÄS MER

  4. 13. Silicon Carbide Reinforced Alumina and Mullite Ceramics

    Författare :Stefan Gustafsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ceramic Nanocomposites; Creep; SEM; SiC; Grain Boundaries; Microanalysis; Mullite; Pressureless Sintering; TEM; Alumina;

    Sammanfattning : The aim of this work was to develop homogeneous ceramic nanocomposite materials with good thermal and structural stability as well as good mechanical properties. The development of microstructure was related to the material properties. LÄS MER

  5. 14. Nanostructural design of transition metal nitride thin films

    Författare :Torbjörn Joelsson; Ivan Petrov; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Early transition metal nitrides have found extensive use in a range of thin film applications. We are just beginning to understand their growth from vapor phase deposition and microstructure-property relationships. LÄS MER

  7. 15. Applications of Artificial Microcavities in Wafer Bonded Silicon

    Författare :Zhaohua Xiao; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : A novel sensor structure has been investigated and extensively studied. The device can be used as a pressure sensor, a voltage measuring device and as an optical modulator. The sensor was made using thermal bonding and micromachining techniques. LÄS MER