Volume 20, Issue 4 (December 2023)                   IJMSE 2023, 20(4): 1-8 | Back to browse issues page


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Nadimi H, Sarpoolaky H, Soltanieh M. Duplex Mechanism of TiC Formation and Ti Dissolution Behavior in KCl-LiCl Molten Salt. IJMSE 2023; 20 (4) :1-8
URL: http://ijmse.iust.ac.ir/article-1-3322-en.html
Abstract:   (1845 Views)
In the present investigation, an attempt was made to evaluate the dissolution behavior of Ti in molten KCl-LiCl. The X-ray diffraction (XRD) pattern of heated Ti plate at 800 oC for 4 h without carbon black in molten salt revealed that TiCl3 formation was feasible. For more assurance, Ti plate was heated at 950 oC for 4 h in the presence of carbon black to identify synthesized TiC. Transmission electron microscope (TEM) and scanning electron microscope (SEM) images from precursors and the final product showed that nano-crystalline TiC formation from coarse Ti particles was almost impossible without Ti dissolution. Thermodynamics calculations using Factsage software proved that it was possible to form various TiClx compounds. The TiC formation mechanism can be discussed in two possible ways: a reaction between Ti ion and carbon black for synthesizing TiC (direct) and a reaction between TiCl4 and carbon black led to indirect TiC synthesis. Elemental mapping using energy dispersive X-ray spectroscope (EDS) indicated that up to 815 oC, chlorine existed in the map. 
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Type of Study: Research Paper | Subject: Ceramics

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