New Virtual Application for Improving the Students' Understanding of Ternary Phase Diagrams

2013 ◽  
Vol 572 ◽  
pp. 578-581 ◽  
Author(s):  
Diego Vergara ◽  
Manuel Pablo Rubio ◽  
Miguel Lorenzo

Students consider spatial visualization as one of the major difficulties at which they had to face in engineering studies. Most of them think that any effort leading to improve the understanding of such problem is welcomed. Taking this into account, an interactive application is developed in this paper in order to overcome the difficulties that engineering students traditionally find with regard to the visualization of ternary phase diagrams. To develop the didactic application diverse commercial software were used: (i) 3DStudioMax for designing the ternary equilibrium diagram and (ii) Quest3D for giving the tool a more intuitive and easy to use character. The result is a 3D virtual application which students can use for interacting in real time with a ternary diagram, e.g. changing point of view, rotating view, observing hidden zones of the diagram by applying transparency option, exploding view phases, cutting the diagram revealing isothermal sections and so on.

1989 ◽  
Vol 4 (5) ◽  
pp. 1209-1217 ◽  
Author(s):  
K. Maex ◽  
G. Ghosh ◽  
L. Delaey ◽  
V. Probst ◽  
P. Lippens ◽  
...  

The thermodynamic equilibrium of structures consisting of a thin film silicide (TiSi2 or CoSi2) on doped Si (with As or B) is investigated. Isothermal sections of the ternary phase diagrams for Ti–Si–B, Co–Si–B, Ti–Si–As, and Co–Si–As have been evaluated, indicating the stability of high B concentrations in Si underneath a CoSi2 layer, the instability of high As concentrations in Si underneath a CoSi2 layer, and of B and As concentrations underneath a TiSi2 layer. The obtained thermodynamic predictions agree very well with experimental results (i) on the redistribution of dopants during silicide formation, (ii) on the diffusion of dopants from an ion implanted silicide, and (iii) on the stability of highly doped regions underneath the silicide, both for the case of TiSi2 and CoSi2. It is shown that even though the inaccuracy of reported thermodynamic data is substantial, thermodynamic calculations provide a useful guidance and are consistent with the experimental results.


2019 ◽  
Vol 9 (2) ◽  
pp. 67 ◽  
Author(s):  
Diego Vergara ◽  
Manuel Rubio ◽  
Miguel Lorenzo

Despite the interesting applications that the PDF-3D offers in teaching, especially for subjects related to spatial comprehension difficulties, such a didactic tool is not well known in the education sector. Thus, a proposal of using PDF-3D in engineering studies is presented in this paper, specifically, in the field of teaching ternary phase diagrams (TPDs). The didactic resource—easy to design and easy to use—allows students to overcome spatial visualization difficulties linked with TPDs. According to students’ opinions, the PDF-3D is an effective tool to use in any topic related to spatial difficulties and, in addition, is a friendly and easy-to-use tool. This fact and the simplicity of designing a PDF-3D make it a useful tool for educational aims.


2013 ◽  
Vol 441 (1-2) ◽  
pp. 603-610 ◽  
Author(s):  
Giulia Bonacucina ◽  
Marco Cespi ◽  
Giovanna Mencarelli ◽  
Luca Casettari ◽  
Giovanni F. Palmieri

1999 ◽  
Vol 16 (3) ◽  
pp. 377-381 ◽  
Author(s):  
Suk-Young Choi ◽  
Seong-Geun Oh ◽  
Seong-Youl Bae ◽  
Sei-Ki Moon

2018 ◽  
Vol 18 (12) ◽  
pp. 7526-7532 ◽  
Author(s):  
Shaza Darwish ◽  
Jacek Zeglinski ◽  
Gamidi Rama Krishna ◽  
Rahamatullah Shaikh ◽  
Majeda Khraisheh ◽  
...  

2001 ◽  
Author(s):  
B b Ebbinghaus ◽  
O H Krikorian ◽  
E R Vance ◽  
M W Stewart

2021 ◽  
Vol 39 (4) ◽  
pp. 1066-1075
Author(s):  
K.K. Adama ◽  
U.P. Onochie ◽  
E. Gbeinzi

This study presents the application of ternary phase diagrams to tropical almond biodiesel components separation and purification at two temperatures. The seed oil was extracted mechanically and alkaline transesterified to produce biodiesel. The oil and biodiesel were characterized using standard methods. Tie lines and binodal solubility curve data were determined using modified cloud point titration procedures. Gas chromatographic method was employed in the analysis of the phase compositions. The mixture of biodiesel, methanol and glycerol were investigated at 20 °C, 30 °C and withdrawal times of 2 to 32 minutes at 2 minutes intervals. Distribution coefficient, K and solvent selectivity, S analysis were performed. Results obtained showed that S > 1 indicating the ability of methanol to promote phase separation and purification. K < 1 implying that there was lower quantities of methanol solubilized in the biodiesel phase. The ternary phase diagrams provided the means of predicting the components distribution. Keywords: Production, Characterization, Tropical Almond Biodiesel, Purification, Ternary Phase Diagram


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