Self-Propagating High-Temperature Synthesis of Dense TiC-TiB2-MeO Ceramics

Vladimir A. Shcherbakov; Anton V. Phitev; N.V. Sachkova; Fabio A. Deorsola; Dario Vallauri; Bruno DeBenedetti

doi:10.4028/www.scientific.net/AST.45.1018

Paper Titles

Combustion Synthesis of α-Si₃N₄ Powder under Low Nitrogen Pressure
p.989

Recent Advances in Synthesis and Densification of Nanomaterials in Self-Propagating High-Temperature Regime
p.994

Nanocomposite TiC-TiB₂ Powders by SHS through Metastability Approach
p.1005

Experimental Study on SHS under High Nitrogen Pressure
p.1011

Self-Propagating High-Temperature Synthesis of Dense TiC-TiB₂-MeO Ceramics
p.1018

Self-Propagating High-Temperature Synthesis of Carbide- and Boride-Aluminides
p.1024

Synthesis Mechanisms of the Combustion Synthesis of IntermetCers Composites
p.1029

Effect of Al₂O₃ Diluents on Microwave Assisted-SHS Process of Al₂O₃-TiC
p.1035

Fabrication of SPS Compacts from Ta, Hf-Containing ZrB₂-ZrC Powder Mixtures Synthesized by the MA-SHS in Air Process
p.1041

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Self-Propagating High-Temperature Synthesis of...

Self-Propagating High-Temperature Synthesis of Dense TiC-TiB₂-MeO Ceramics

Abstract:

The aim of this work is the preparation and study of the mechanisms of structure formation of dense ceramics based on the TiC–TiB2–MeO system obtained by pressure–assisted Self-propagating High-temperature Synthesis. SHS systems were selected on the basis of thermodynamic analysis as suitable to realise regimes of synthesis with formation of liquid phase allowing a full densification. It was observed that at the adiabatic temperature the liquid phase formed in the SHS products consists of either melted oxides or eutectic TiC–TiB2. The results of microstructural observations and mechanical characterization confirm that the metal oxides effectively promote the densification of the final products and the grain refinement of the SHSproduced ceramic materials.