Search for dissertations about: "Phase stability"

Showing result 21 - 25 of 688 swedish dissertations containing the words Phase stability.

2. 21. MAX phase thin films : unique multifunctional ceramics with the elements Ti, Si, Ge, Sn, and C

   Author : Jens Emmerlich; Wolfhard Möller; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Thin solid films; Single-crystal; Physics; Fysik;

   Abstract : Mn+1AXn phases are ternary carbides or nitrides (X) consisting of an early transition metal (M), and (A)- group element (group III-V). They combine ceramic and metallic properties with high oxidation and thermal shock resistance as well as low resistivity. READ MORE

4. 22. Experimental and theoretical study of carbides in the Co-Cr-C system : Structure, alloying and stability

   Author : Bartek Kaplan; Malin Selleby; Jan Qvick; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials Science and Engineering;

   Abstract : The research presented in this thesis explores the structure, alloying and stability of the carbides in the Co-Cr-C system by using the CALPHAD approach supported by experimental measurements and ab initio calculations.WC-Co based cemented carbide materials consist of hard WC grains and a ductile Co-based binder. READ MORE

5. 23. Phase Stability and Preparations of Oxide-Apatite Composites

   Author : Erik Adolfsson; Bengt Kasemo; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; oorganisk kemi; Inorganic Chemistry;

   Abstract : In the preparation of bioactive composites containing hydroxyapatite, Ca5(PO4)3(OH), and an oxide it has been a problem to prevent the hydroxyapatite from decomposing in the sintering process. This is because H2O is evolved when hydroxyapatite is heated, implying that the occupied OH- positions in hydroxyapatite structure are partly replaced by vacancies and O2- ions. READ MORE

6. 24. Interactions and phase stability in Ni-rich binary alloys

   Author : Shuang He; Andrei Ruban; Biplab Sanyal; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ni-based superalloys; ab initio calculations; atomic ordering; effective interactions.; Teknisk materialvetenskap; Materials Science and Engineering; Teknisk materialvetenskap; Materials Science and Engineering;

   Abstract : Ni-based superalloys are the important materials for gas turbines in advancedaeroplane engines . The addition of refractory elements to these superalloys,such as rhenium and tungsten, can significantly improve the hightemperatureperformance by so-called solid-solution hardening. READ MORE

7. 25. Driving stability of passenger vehicles under crosswinds

   Author : Adam Brandt; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crosswind; high speed; aerodynamics; driving stability; vehicle dynamics;

   Abstract : Passenger cars are a vital part of modern society, giving people the freedom of flexible travel. As technology advances, customers increase their demands for future products. The automotive industry must, therefore, adapt to society's requirements of energy-efficient travel, where developing low drag vehicles is key. READ MORE