Sökning: "CALPHAD-technique"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet CALPHAD-technique.

1. 1. Thermodynamic Investigation of Co-Cr Alloys

   Författare :Thérèse Sterneland; KTH; []
   Nyckelord :Cobalt; chromium; experimental thermodynamics; solid state galvanic cell technique; differential scanning calorimetric technique DSC ; CALPHAD-technique; Thermo-Calc; phase diagram; experimental data;

   Sammanfattning : In a collaborative effort between the Divison of Metallurgyand the Divison of Computational Thermodynamics, RoyalInstitute of Technology (KTH), Stockholm, Sweden, experimentalinvestigations have been carried out in the binary Co-Crsystem. The experimental strategy has been to measure thethermodynamic activities of Cr by the solid oxide electrolytegalvanic cell technique, as well as to measure the molar heatcapacities of the alloys, as function of temperature, by theDSC technique. LÄS MER

3. 2. Thermodynamic description of the Fe-C-Cr-Mn-Ni-O system

   Författare :Lina Kjellqvist; Malin Selleby; Bengt Hallstedt; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermodynamic modelling; thermodynamic assessment; Calphad; phase diagram; spinel; compound energy formalism; ionic two-sublattice liquid model; Materials science; Teknisk materialvetenskap;

   Sammanfattning : The Fe-C-Cr-Mn-Ni-O system is of fundamental importance when describing the influence of oxygen on high alloyed steels. Both solid and liquid phases are of great interest: The solid phases regarding oxidation processes like the formation of oxide layers, inner oxidation, sintering processes and high temperature corrosion. LÄS MER

4. 3. Thermodynamic description of the Au-In-Ga ternary system based on the CALPHAD method

   Författare :Masoomeh Ghasemi; Fasta tillståndets fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : There has recently been a considerable attention to the possible role of semiconductor nanowires for future device applications. To make this development feasible, precise control over the growth mechanism is required. LÄS MER

5. 4. Investigation of vanadium-containing oxide systems : CALPHAD and experiments

   Författare :Yang Yang; Malin Selleby; Caisa Samuelsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Calphad; thermodynamic modelling; compound energy formalism; evaporation kinetics; activation energy; TGA; activity;

   Sammanfattning : Fundamental studies on thermodynamic properties of vanadium-containing oxides systems are essential to understand practical vanadium metallurgical process. The CALPHAD technique is here applied to the thermodynamic modelling of the V-O, Ca-V-O and Ti-V-O systems. The compound energy formalism is used for all the solution phases. LÄS MER

7. 5. Thermodynamic Database for Zirconium Alloys

   Författare :Rosa Jerlerud Pérez; Bo Sundman; Arthur Motta; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zirconium alloys; thermodynamic equilibrium; thermodynamic properties; binary system; ternary system; Gibbs energy; Thermo-Calc; Calphad; binary system; ternary system; Other materials science; Övrig teknisk materialvetenskap;

   Sammanfattning : For many decades zirconium alloys have been commonly used in the nuclear power industry as fuel cladding material. Besides their good corrosion resistance and acceptable mechanical properties the main reason for using these alloys is the low neutron absorption. LÄS MER