Electron micrographs of the fractured surfaces from bulk SiC ceramics that were obtained by two-steps (CS followed by SPS) and one-step (RSPS) approaches are shown in …
2.1.2 High-energy ball milling. High-energy ball milling is a mechanical deformation process that is frequently used for producing nanocrystalline metals or alloys in powder form. This technique …
It was found that the fracture strength and fracture toughness of the nano-/micro-sized SiC/Al 2 O 3 composites were significantly improved in comparison with the monolithic Al 2 O 3. 7.6 MPa …
In this study, we have fabricated (HfMoTiWZr)C HECs by HEBM and SPS using constituent metal carbide powders as precursors. After milling, XRD patterns of the as-blended …
When silicon adsorbs sodium ions, sodium atoms are inserted between the Si-Si bonds to expand the volume. Several strategies have been proposed and used to overcome the problems that …
Many recent investigations have focused on the design and optimization of processing techniques for the fabrication of advanced composites [1,2,3,4].Significant interest …
Influence of different milling programs (a) Reference, (b) Program1 with speed change, (c) Porgramm2 with menthol as PCA, and (d) Program3 with argon atmosphere on …
SiC, in its powdered form, is a highly effective abrasive thanks to its exceptional hardness and thermal resistance [3].This makes it suitable for grinding, cutting, and …
duced by HEBM and subsequent cold compaction have been termed as HEBM-2024, HEBM-6061, and HEBM-7075 in this study. Wrought alloys were also investigated to compare the …
The effect of SiC addition (5, 17.5, and 30 vol.%) on the high-energy ball-milling (HEBM) behaviour of ZrB 2 is investigated. It was found that the presence of SiC during HEBM …
The combined effects of high-energy ball milling (HEBM) and reactive spark plasma sintering (R-SPS) of HfSi2 and C powder mixture on the densification and …
Evaluation of Hebm Mechanical Alloying of Al. 2. O. 3 — 356/7075 Powder Mixture 49. follows: Aluminium oxide, Al. 2. O. 3, average particle size 70 nm and 180 nm, respectively, purity …
Direct synthesis of silicon carbide (SiC) nanopowders (size 50–200 nm, BET ~20 m2/g) in Si–C system is conducted in an inert atmosphere (argon) using a self-propagating high-temperature ...