Effect of TiH₂ Composition on Porous Stainless Steel and Titanium Hydride Composite Synthesized by Spark Plasma Sintering

Abstract:

The main aim of this research was to investigate the influence of processing parameters on the me-chanical properties and morphology of porous STS:TiH₂ composites made by using spark plasma sintering method. Mechanical parameters and structural analysis of the fabricated composite have been investigated by Rockwell hardness, density tester, optical microscope, XRD and FE-SEM. In particular the porous stainless steel (STS) and titanium hydride TiH₂ composites materials with op-timal ratio were prepared with using additional hollow glass microsphere and water glass for con-trolling of the porosity degree. It is found, that the porosity degree depended on addition of TiH₂ and hollow glass additive, resulting to modification of the pore shape and size. I was shown that the dispersion of STS/TiH2 composite which sintered by spark plasma sintering method without pressure result to increasing of mechanical properties (hardness and density). According to obtained results, the addition of TiH2 powder into STS improves the mechanical property of the synthesized specimens especially the specimens with addition 20 wt% and 50 wt% of TiH₂ demonstrated high hardness values and good density.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 2293-2298
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.2293
• Online since: January 2013
• Authors: Bunyod Allabergenov, Oybek Tursunkulov, Amir Abidov, Sang Youp Kim, Eun Young Lee, Li Li He, Tae Yong Kim, Soon Wook Jeong, Sung Jin Kim
• Keywords: Hollow Glass Microspheres, Mechanical Parameters, Porous Composites, Spark Plasma Sintering (SPS), Stainless Steel (SS), Structural Analysis, TiH₂ Powder

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