Synthesis and Theoretical Concepts of Boron Nitride Nanowires Grown on Nitrides Stainless Steel Surface by Hybrid Gas Phase Process

Abstract

Synthesize of Boron Nitride nanowires were made by utilizing Austenitic hardened steel AISI 316 with a nitriding layer of 15–16 μm thickness. Deposition experiments at deferent substrate temperatures for BN Nanowires productions were carried out with the help of a blended gas stage depositing handle procedure (PVD and CVD). Chemical composition and crystallinity along with the average grain size for BN phases was investigated by using XRD test and FTIR spectrum. The SEM images was used to examine the surface topography. Finally theoretical investigations computations were performed by thickness useful hypothesis (DFT) in Gaussian 09 bundle. According to our results, the impact of the depositing temperature on the chemical composition and the structure should be pointed out as the major effect for the higher deposition rate that leads to thicker and more dense BN surface film, where the more uniform BN Nanostructures wires with a regular diameter of 20 nm and average grain size of ~18nm was compelled through novel materializing crystalline stages causing grain size to rise with increasing deposition temperature to specific level.

Synthesis, Characterization, and Infrared Blocking Efficiency of Polyvinyl Alcohol Composites Filled with Cadmium Sulfide and Zinc Sulfide NPs

“…As a result, the IR radiation is prevented from passing through the coating and reaching the underlying materials or environment. Figures 1d and 2d demonstrate the calculated energy gap, which demonstrated that the prepared films have a large gap value, and when CdS or ZnS materials were added, the value of that gap decreased, and this is since the generation of secondary levels of compounds added within the energy gap, which narrowed the gap and thus increased optical conductivity which is inversely proportional to the value of the energy gap, these are consistent with the results of researchers [10,18,26].…”

“…Polyvinyl alcohol is noted for its film-forming prowess, biocompatibility, and processing versatility, which have been exploited in coatings, adhesives, and packaging [5]. Meanwhile, CdS and ZnS-semiconductors with wide bandgaps-are distinguished by optical properties that align well with IR-blocking applications; they exhibit high transparency in the visible spectrum, along with potent IR absorption and reflection [6][7][8][9][10].…”

Improvement of Substrates Properties by Incorporating Titanium Nanoparticles Deposited by DC Diode Sputtering Approach

“…Thus, control of the structure formation during film fabrication appears to be of great importance for a particular application. Titanium has been utilized in the micro-electro-mechanical system, optoelectronic devices, bio-applications, and mechanical equipment [1][2][3][4][5][6][7][8][9]. Many efforts have been made to obtain (002) orientation.…”

Manufacture Shield from nano-rubber composite to protection from X-ray radiation

“…[6] That human exposure to radiation and its results is one of the important matters that must be studied and paid attention to, especially after the tremendous expansion in the use of nuclear techniques in the field of medicine, agriculture and industry. [8][9][10] There are multiple materials that are used as shields to protect against radiation. The high level of material, in order to diagnose, monitor and treat many medical conditions appropriately, and X-rays have several types according to their energy used for different purposes, there is one type that is used to detect breast cancer.…”

“…The high level of material, in order to diagnose, monitor and treat many medical conditions appropriately, and X-rays have several types according to their energy used for different purposes, there is one type that is used to detect breast cancer. [8] There are X-ray images of the digestive system, and those used to detect bone fractures or blood vessel blockages, and X-rays have some risks to the human body, but the benefits outweigh them for most people. X-rays during pregnancy Most of the imaging procedures are X-ray.…”