The microstructural evolution of Ni-20 pct Cr wires was studied during pack cementation where Al and Ti, with and without prior cementation with Mo, are deposited to the surface of the NiCr wires and subsequently homogenized in their volumes. Mo deposition promotes the formation of Kirkendall pores and subsequent co-deposition of Al and Ti creates a triple-layered diffusional coating on the wir...

Abstract Supercritical water oxidation (SCWO) can efficiently and harmlessly dispose sewage sludge, while corrosion phenomena lead to rapid shutdown and/or failure of expensive process equipments in a supercritical system. The behavior titanium alloys, Ni-based alloys stainless steel exposed sludge at 450 °C, 26 MPa for 60 h was investigated by means gravimetry, scanning electron microscopy, en...

Abstract As a planar resonant structure, Salisbury screen offers cost-effective way of manipulating electromagnetic waves for both fundamental studies and practical applications in optoelectronics. In this paper, we demonstrate absorbers using epsilon-near-zero substrate, which reduces the spacer thickness below typical one quarter wavelength limit. Three-layered thin-film made SiC ZnSe layer t...

Wear resistant coatings that comply with non-toxic environment goals are highly desirable. Cr 3 C 2 –NiCr is a promising alternative to the toxic, ‘Co’- containing WC–Co mitigate wear. The purpose of this study was examine suitability for automotive brake disc application by systematically investigating their dry sliding wear behavior at different test conditions. Therefore, High Velocity Air F...