Search for dissertations about: "Refractory glass"

Showing result 1 - 5 of 7 swedish dissertations containing the words Refractory glass.

  2. 1. A study on the Submerged Entry Nozzels (SEN) respecting clogging and decarburization

    Author : Arashk Memarpour; Pär Jönsson; Sune Jansson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Refractory; SEN; Clogging; REM; Coating; glaze; alkaline; Refractory; ZrSi2; Graphite; Alumina; Oxidation; Al2O3-C; ZrO2-C; MgO-C; decarburization; reaction mechanism; Materials science; Teknisk materialvetenskap;

    Abstract : The submerged entry nozzle (SEN) has been used to transport the molten steel from tundish to the mould. The main purpose of the SEN usage is both to prevent oxygen and nitrogen pick-up by molten steel and to achieve the desired flow condition in the mould. READ MORE

  4. 2. An Experimental Study of Submerged Entry Nozzles (SEN) Focusing on Decarburization and Clogging

    Author : Arashk Memarpour; Pär Jönsson; Torbjörn Carlberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Refractory; SEN; Clogging; REM; Coating; glaze; alkaline; Post- Mortem; industrial preheating; ZrSi2; Graphite; Alumina; Oxidation; Al2O3-C; ZrO2-C; MgO-C; decarburization; reaction mechanism; Yttria Stabilized Zirconia; plasma spray-PVD coating;

    Abstract : The submerged entry nozzle (SEN) is used to transport the molten steel from a tundish to a mould. The main purpose of its usage is to prevent oxygen and nitrogen pick-up by molten steel from the gas. Furthermore, to achieve the desired flow conditions in the mould. READ MORE

  5. 3. Refractory High Entropy Alloys and Films for High Temperature Applications

    Author : Sajid Ali Alvi; Farid Akhtar; Marta-Lena Antti; Ulf Jansson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Materials; Materialteknik;

    Abstract : High-entropy alloy (HEA) is a multi-component alloy constituting five or more principal elements in equi- or near equi-atomic percentages. The high configurational entropy in a HEA composition, in contrast to conventional alloys, leads to the stabilisation of the alloying elements in stable solid solutions of face-centred-cubic (FCC), body-centred-cubic (BCC) and/or amorphous structures. READ MORE

  6. 4. Crystallization of glasses in the system (Zr)-Y-Si-Al-O-(N)

    Author : Peter Vomacka; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Engineering Materials;

    Abstract : Glass is a group of materials that has been used for structural and functional purposes for many centuries. Nevertheless, interest in the science and technology of glass has expanded significantly in recent years as a result of the need to develop new materials for advanced applications. READ MORE

  7. 5. Structure-property investigation of ZnSb, ZnAs, and SiB3 : - binary semiconductors with electron poor framework structures

    Author : Daniel Eklöf; Ulrich Häussermann; Oliver Orckler; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Thermoelectric; Waste heat harvesting; Semiconductor; X-ray powder diffraction; SEM; Electron poor framework; EPFS; Green house effect; Inorganic Chemistry; oorganisk kemi;

    Abstract : In today’s society, where energy conservation and green energy are buzz words, new scientific discoveries in green energy harvesting is key. This work focuses on materials capable of recycling low value thermal energy. READ MORE