Evaluation of mechanical and corrosion properties of TiB₂-Y₂O₃ nanocomposite fused bronze metal matrix composite

Abstract

The present work is intended to fabricate titanium diboride (TiB2) and yttrium oxide (Y2O3) fused bronze metal matrix composite by stir casting technique to achieve effective mechanical and corrosion properties. TiB2- Y2O3 nanocomposite powders were synthesized using the mechanical milling synthesis technique. Spectroscopic analyses like Powder X-Ray Diffraction (PXRD), Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron Microscope (SEM) were used to characterize the synthesized nanopowders. The XRD data revealed the average crystalline size of 110±5 nanometres with a hexagonal and cubic phase structure of TiB2 and Y2O3. The fundamental modes and other functional groups of the nanocomposite were analyzed using the FTIR analysis. The SEM images revealed the irregular morphological structures of the composite powders. The bronze metal matrix composite is fabricated by varying the weight percentage of TiB2-Y2O3 nanocomposite as 2%, 4%, and 6 wt.% with bronze alloy via stir casting technique. XRD graphs revealed the formation of metal matrix composite and the FESEM graphs revealed the porous morphology of the composite. The mechanical performance of the composite was analyzed by using the tensile, compression, and hardness tests. Specimen with 4% wt.% reinforcement material offered higher mechanical properties with 303 MPa tensile, 810 MPa compression, 141 HRB hardness, and good corrosion resistance. Hence the fabricated TiB2-Y2O3 fused bronze metal matrix composite with good mechanical and corrosion properties can be used for various sea environment applications.

Mechanical and spectroscopic investigation of novel f-MWCNTS/g-C3N4/TiO2 ternary nanocomposite reinforced denture base PMMA

“…X-ray diffraction analysis Figure2(A) shows the XRD patterns of pure MWCNTs and functionalized MWCNTs. Carbon Nano Tubes (CNTs) are functionalized for various applications in biomedical engineering to enhance biocompatibility, imaging, encapsulation tendency, and multimodal drug delivery[45]. A strong peak around 26°and a lowintensity peak at 43°with lattice parameters (002) and (100) are found in both pure and acid refluxed f-MWCNTs which are well-matched with the literature[46].…”

Effect of Functionalization of 2D Graphene Nanosheets on Oxidation Stress of BEAS-2B Cells

“…The technique involves irradiating a sample with X-rays and measuring the diffraction pattern produced as the X-rays interact with the sample's atomic structure. The diffraction pattern provides information about the spacing between atoms in the sample, which can be used to identify the crystal structure and phase of the material [14][15][16][17]. From Fig.…”

“…The average crystalline size of graphene nanosheets can be estimated using the Debye-Scherrer's formula equation, which relates the width of a diffraction peak to the size and crystallinity of the material as given in Eq. 1 [17].…”

“…FTIR analysis of GONPs typically focuses on the analysis of the functional groups present on the edges and defects of the graphene sheets. This provides information on the functional groups and chemical bonds present in the sample [14][15][16][17]. The FT-IR spectra of GONPs are acquired in the range between 400-4000 cm − 1 are as shown in Fig.…”

“…Scanning electron microscope is a powerful technique used to study the surface morphology and topography of materials at high resolution. SEM analysis of graphene nanosheets can provide information about the size, shape, and orientation of individual sheets [16][17]. The aggregation behavior of the GONPs was studied using the SEM morphology from Fig.…”