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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Solar Cell Silicon
Presentation Title Using Thermo-calc Software to Deduce the Thermodynamic Properties of Si-B Binary System
Author(s) Shadia Jamil Ikhmayies
On-Site Speaker (Planned) Shadia Jamil Ikhmayies
Abstract Scope Thermodynamic properties of the Si-B binary system were calculated using thermo-Calc software at a pressure of 1 bar. Gibbs free energy, enthalpy, entropy, and activity were calculated and plotted against temperature and composition. Gibbs free energy curves for all phases were discussed and found to be consistent with phase diagram. It is found that Gibbs free energy becomes more negative with temperature, and it shows minima at certain composition values for different phases. Enthalpy curves for all phases are plotted with composition, and they are consistent with Gibbs free energy curves, then plotted against temperature and showed increase from negative values to positive values. Entropy and activity curves for all phases were plotted against composition and temperature and thoroughly discussed. The largest value of boron activity is about 0.49, and the curves shown maxima then a monotonic decrease with temperature, where activity of boron becomes about 0.03.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


Combustion Synthesis of Nanostructured Silicon
Dislocation-based Thermodynamic Models of V-pits Formation and Strain Relaxation in InGaN/GaN Epilayers on Si Substrates
First Principles Modeling of Water-induced Polymer Encapsulant Degradation in Silicon Modules
Molten Salt Electrolysis Production of Solar Silicon from Natural Quartzite
Phase Diagrams of the Si-P Binary System
Thermo-calc Determination of the Phase Diagram of Si-B Binary System
Thermodynamic Properties of Si-P Binary System
Using Thermo-calc Software to Deduce the Thermodynamic Properties of Si-B Binary System
Zr Addition for Enhanced B Removal from Si by Si-Cu Solvent Refining

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