• Ultra-high temperature geothermal wells can substantially increase the energy yield Tensile tests of traditional and potentially new casing materials are conducted The mechanical properties extend existing literature data is one needed step in constructing reliable ultra-high (>450 °C) have a large potential for increased as compared to conventional high-temperature (200-300 °C), but several ...

aligned and random nanocomposite nanofibrous scaffolds were electrospun from polycaprolactone (pcl), poly (vinyl alcohol) (pva) and hydroxyapatite nanoparticles (nha). the morphology and mechanical characteristics of the nanofibers were evaluated using scanning electron microscopy and tensile testing, respectively. scanning electron microscopy revealed fibers with an average diameter of 123 ± 3...

In the present study, commercial cocoa powders with different fat contents were studied. It was found that powders’ flow patterns of a cohesive to highly characters. demonstrated, higher crystalline structure less flowable compared ones more amorphous ones. observed by SEM studied content and dietary fibers (sample 2) exhibited structure. The predominantly smooth surface powder allowed its dens...

The article deals with the design of technology production polyurethane foam (PU) specimens and their mechanical testing. A simple procedure is proposed to produce complex shapes. tested on two different mounting foams. These were subjected several experiments. presents experimental results for only one foam. tests performed a Testometric M500-50CT testing machine. Specifically, these are tensi...

tan films with different n2 partial pressure were deposited on 304 stainless steel using the magnetron sputtering method. the effect of gas pressure on the mechanical property, morphology and phase structure of the films is investigated by x-ray diffraction (xrd), atomic force microscopy (afm), microhardness testing, friction coefficient measurements, and wear mechanism study. the xrd results c...