1,3-Disilabutane is used as a single-source precursor to deposit conformal silicon-carbide films on silicon atomic-force-microscopy cantilevers. By measuring the resonance frequency of the cantilever as a function of silicon-carbide film thickness and developing an appropriate model, the value of the film’s elastic modulus is determined. This value is in good agreement with those reported for s...

Silicon carbide (SiC) has found a variety of engineering applications due to its superior properties. However, it is still desirable to study cost-effective processes to machine silicon carbide. This paper presents the results of a designed experimental investigation into Rotary Ultrasonic Machining (RUM) of silicon carbide. A four-variable two-level full factorial design was employed to reveal...

A carbon-containing CoCrFeNi high entropy alloy (HEA) with heterogeneous structures was obtained through thermomechanical treatments, which induced concurrent recrystallization and carbide precipitation in the alloy. combination of yield strength (556 MPa) large uniform elongation (45%) achieved investigated The enhancement is attributed to combined effects grain refinement, strengthening micro...

Abstract M42 high-speed steel (W 2 Mo 9 Cr 4 VCo 8 ) is a kind of high cobalt super-hard (HSS), which extensively used in various cutting tool materials, but because the price cobalt, HSS does not bring good economic benefits. In this thesis, consequences contents (0.0%, 2.0%, 4.0%, 6.0%, 8.0%) on organization and mechanical properties have been studied. The microstructure was analyzed by OM, S...

Fine, monophasic silicon carbide powder has been synthesized by direct solid-state reaction of its constituents namely silicon and carbon in a 2.45 GHz microwave field. Optimum parameters for the silicon carbide phase formation have been determined by varying reaction time and reaction temperature. The powders have been characterized for their particle size, surface area, phase composition (X-r...