Sökning: "HTCC"

Hittade 3 avhandlingar innehållade ordet HTCC.

  1. 1. Extending Microsystems to Very High Temperatures and Chemically Harsh Environments

    Författare :Zahra Khaji; Lena Klintberg; Klas Hjort; Greger Thornell; Frank Niklaus; Uppsala universitet; []
    Nyckelord :HTCC; MEMS; MST; Microcombustor; Microthruster; Single-use valve; Wireless pressure sensor; flow sensor; in-situ electroplating; Monopropellant; Platinum; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology;

    Sammanfattning : Aiming at applications in space exploration as well as for monitoring natural hazards, this thesis focuses on understanding and overcoming the challenges of extending the applicability of microsystems to temperatures above 600°C as well as chemically harsh environments. Alumina and zirconia high-temperature co-fired ceramics (HTCC) with platinum as the conductor material, have in this thesis, been used to manufacture a wide range of high-temperature tolerant miniaturized sensors and actuators, including pressure and flow sensors, valves, a combustor, and liquid monopropellant microthrusters. LÄS MER

  3. 2. Sense, Actuate and Survive : Ceramic Microsystems for High-Temperature Aerospace Applications

    Författare :Peter Sturesson; Greger Thornell; Lena Klintberg; Peter Bull; Pelle Rangsten; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High temperature; ceramics; microsystems; aerospace; sensors; thrusters; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology; Försvarssystem;

    Sammanfattning : In aerospace applications, but also in manufacturing, mining, energy industry and natural hazards, high temperature, corrosion, erosion and radiation, challenge the performance and being of hardware.In this work, high-temperature co-fired ceramic (HTCC) alumina and platinum have been used for a range of devices intended for aerospace applications at up to 1000°C. LÄS MER

  4. 3. Microsystems for Harsh Environments

    Författare :Stefan Knaust; Lena Klintberg; Klas Hjort; Fredric Ericson; Samuel Marre; Uppsala universitet; []
    Nyckelord :Microsystems; harsh environments; high pressures; high temperatures; supercritical microfluidics; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology;

    Sammanfattning : When operating microsystems in harsh environments, many conventionally used techniques are limiting. Further, depending on if the demands arise from the environment or the conditions inside the system, different approaches have to be used. LÄS MER