In this study, different amounts of MoS2 particles and an anionic surfactant were added to the conventional chromium electroplating bath in order to electrodeposite crack-free chromium coatings and the structure, morphology, tribology and corrosion behavior of the deposited coatings were investigated using X-ray diffraction spectroscopy, scanning electron microscopy, pin on disk ...

In this research (using induction furnace process) nodular iron with three different percentages of copper (residual, 0.5% and 1,2%) was obtained. Chemical analysis was performed by mass spectrometry and microstructures were characterized by Optical Microscopy (ASTM E3) and Scanning Electron Microscopy (SEM). The study of mechanical behavior was carried out in a mechanical test machine (ASTM E8...

LYRA, the Lyman-α radiometer, is a high–cadence (100 Hz) solar VUV radiometer which will measure disk–integrated irradiances in 4 wavelength channels. Special emphasis is given on novel detectors based on diamond which will be tested for the first time in space. Two kinds of detectors are employed: MSM– and PiN–type detectors. Their particular advantage compared to silicon detectors lies in the...

Prostatic intra-epithelial neoplasia (PIN) is considered a precursor of invasive carcinoma, characterized by proliferation and anaplasia of cells lining prostatic ducts and acini. In this study, we applied the PIN grading system on one-hundred cases of prostatic carcinoma and one-hundred cases of benign prostatic hyperplasia, then compared the results. 74% of prostatic carcinoma and 51 % of...

The aim of this work was WC distribution in base Al-Si-Mg (A356) alloy as reinforcing agent. WC Solid particles in the sub-23-nm size range added to melted alloy by centrifuge casting. The cylinder tube without gap was obtained. FESEM and OPM results show that the distribution depends upon the rotational speeds of the mould and centrifugal casting conditions. According to the MAP results, durin...

A number of recent technological trends have made data intensive applications such as continuous media (audio and video) servers a reality. These servers store and retrieve a large volume of data using magnetic disks. Servers consisting of heterogeneous disk drives have become a fact of life for several reasons. First, disks are mechanical devices that might fail. The failed disks are almost al...

In this study, a hybrid material is produced, and the effect of different loads varying from 40 to 60 N against an EN-31 steel counter disk on its wear behavior under dry sliding conditions at room temperature studied. The tribological studied via pin-on-disk method analyzed using primary parameters, such as coefficient friction (COF), mass wear, specific rate. obtained results are compared wit...

In the context of developing an innovative seismic dissipation system, which aims to compromise on steadiness friction and processes costs, this work deals with tribological characterization S355JR structural steel, whose surface has been preliminarily treated by different mechanical galvanic processes. Tribological tests were performed in a pin-on-disk configuration reciprocating motion, using...