Investigation on the Performance of Coated Carbide Tool during Dry Turning of AISI 4340 Alloy Steel.

The machinability of materials is highly affected by their hardness, and it affects power consumption, cutting tool life as well as surface quality while machining the component. This work deals with machining of annealed AISI 4340 alloy steel using a coated carbide tool under a dry environment. The microhardness of annealed and non-annealed workpieces was compared and a significant reduction was found in the microhardness of annealed samples.

Microstructure, Mechanical Characteristics, and Wear Performance of Spark Plasma Sintered TiB-SiN as Affected by BN Doping.

This study aims to analyze the effect of boron nitride (BN) additive (3-6%) on the densification, microstructure, mechanical properties, and wear performance of TiB-15%SiN and TiB-30%SiN sintered composites. When the BN (3%) was added to the TiB-30SiN composite, the density increased to 99.5%, hardness increased to 25.

Raman Spectroscopy-Assisted Characterization of Nanoform MoS Thin Film Transistor.

In this paper, we report the simple preparation and investigation of electrical transport properties of nanoform MoS thin film transistor (TFT) devices. MoS nanoparticles were synthesized by using the hydrothermal method. The physiochemical characterizations such as UV-vis, Fourier transform infrared, X-ray diffraction, and Raman spectroscopy studies were performed.