Title of article :
A perspective to efficient synthesis of zirconium carbide via novel pyro-vacuum method: lower temperatures and enhanced purity
Author/Authors :
Kazemi ، Faramarz Department of Materials and Metallurgical Engineering - Amirkabir University of Technology (Tehran Polytechnic) , Nayebi ، Behzad Department of Materials and Metallurgical Engineering - Amirkabir University of Technology (Tehran Polytechnic)
Abstract :
The use of ultra-high temperature ceramics (UHTCs) as a novel additive in the refractory industry is becoming increasingly popular. However, the synthesis of such materials is associated with some commercial obstacles, mainly high-temperature synthesis methods. In the present study, the pyro-vacuum method is presented as a new method to decrease the final product apos;s synthesis temperature and oxygen content. Some thermodynamic aspects and phase evolution of the materials during the synthesis procedure are described for the synthesis of non-oxide material. Conclusively, it seems that by applying vacuum conditions, the final UHTC phases can be synthesized at significantly lower temperatures ( 400 °C lower, for ZrC), if adequate powder mixtures are considered. Also due to phase analysis, it was found that the oxygen content of the final phase is lower than the conventional routes and other references. The process provides promising prospects for the economic synthesis of UHTCs.
Keywords :
Ultra , high temperature ceramics , Zirconium carbide , Pyro , vacuum , Synthesis , Nanoparticle
Journal title :
Synthesis and Sintering
Journal title :
Synthesis and Sintering