The effect of the introduction charged aluminum oxyhydroxide (AO) nanoparticles into porous coatings from calcium phosphate formed by micro-arc oxidation on their electrical potential and structure was studied. modification resulted in changes morphology elemental composition coatings. selection coating functionalization parameters obtaining homogeneously distributed form agglomerates, providin...

An efficient modified arc plasma method, where a focusing electric field is superimposed on the arc electric field, is optimized for the bulk generation of highly pure multi-walled carbon nanotubes (MWNTs). Raman spectroscopy and thermogravimetric measurements have been used to optimize the process. It was found that, at the optimized focusing field configuration, this process can utilize about...

With increasing scale of usage for renewable energy resource, DC micro-grids system becomes more and more popular for the application of different kinds of power electronics in DC. However DC arc fault introduces major safety concerns due to the randomness and instability, especially absence of zero current crossing, which makes it is hard to be detected and eliminated. In this thesis, a novel ...

Background and aims. Newer curing units such as plasma arc can polymerize the sealants in much shorter curing times. The aim of this study was to compare the effect of two different curing units on the micro-leakage of a fissure sealant material. Materials and methods. Sixty two extracted premolars without caries were randomly divided into two groups of 31 samples. Occlusal surfaces of all teet...

The method of micro-arc oxidation has been utilized to synthesize a protective biocompatible coating for bioresorbable orthopedic Mg implant. This paper presents the results comprehensive research coatings based on diatomite—a biogenic material consisting shells diatom microalgae. main focus this study was functionalization diatomite-based by incorporating particles titania (TiO2) into them. Va...