Using the recently developed SIMS-SPM prototype, secondary ion mass spectrometry (SIMS) data was combined with topographical data from the scanning probe microscopy (SPM) module for five test structures in order to obtain accurate chemical 3D maps: a polystyrene/polyvinylpyrrolidone (PS/PVP) polymer blend, a nickel-based super-alloy, a titanium carbonitride-based cermet, a reticle test structur...

The integrity of machined holes depends on many parameters, some which are related to the cutting tool (geometry, coating, material). Other influential parameters machining process variables (spindle speed, feed rate, workpiece material), all can affect quality hole and drilling induced damage its surface. This study investigates effect uncoated tools four types coatings (TiN-, TiCN-, TiAlN-, T...

The development of cemented carbides nowadays is aimed at the application and sintering ultrafine nano-sized powders for production a variety components where excellent mechanical properties high wear resistance are required use in temperature corrosive environment conditions. most efficient way increasing tribological along with achieving corrosion coating. Using surface processes (modificatio...

Composite titanium carbonitride (TiCN) thin films deposited on AZ31 by DC/RF magnetron sputtering were vacuum annealed at different temperatures. Vacuum annealing yields the following on the structure and properties of the films: the grain grows and the roughness increases with an increase of annealing temperature, the structure changes from polycrystalline to single crystal, and the distributi...

In many accelerator storage rings running positively charged beams, multipactoring due to secondary electron emission (SEE) in the beam pipe will give rise to an electron cloud which can cause beam blow-up or loss of the circulating beam. A preventative measure that suppresses electron cloud formation is to ensure that the vacuum wall has a low secondary emission yield (SEY). The SEY of thin fi...

This experimental study presents the machinability comparison of TiCN-Al2O3-TiN, TiAlN-TiN, and TiAlSiN coated carbide inserts in hard turning AISI 4340 steel. The primary purpose this research is to determine most appropriate cutting hardened (30–40 HRC) steel considering surface roughness (Ra), sound (Cs), power consumption (P), radial force (Fx), tangential (Fy), feed (Fz). To fulfill object...