... of microstructural characterization and mechanical testing is conducted to obtain the output attributes. In addition, the theoretical analysis of the physics of ultrasonic vibration in the melting materials is presented to explain the influences of ultrasonic vibration on the microstructural evolution occurred...

...: Si₃N₄ ball of 4-mm diameter, load of 20 N, friction length of 5 mm and test time of 10 min. Samples were ultrasonically cleaned in acetone solution for 10 min before and after testing. The microstructures of the powders and coatings were observed using field emission scanning electron microscopy...

... plaster of paris to hydroxyapatite by low temperature phosphorization. Design/methodology/approach Plaster of paris‐based powder mixture was used to print specimens using different powder layer thickness (0.080, 0.10 and 0.20 mm) and saturation ratio (1 and 2). Subsequently, density, microstructure...

... thickness of 30, 50 and 70 μm and laser scanning speed set at 70 and 90 mm/s. Part geometry, dimensional tolerance, surface quality, density, mechanical properties and microstructure were evaluated. Findings Results confirmed that the SLM of low‐cost 304L powder was successful and could produce...