XRD peak (Figure 2) of the silicon carbide powder confirmed the existence of only the β-SiC cubic sphalerite crystal structure, and PVP modified method does not alter the crystal structure of...

Dec 1, 2020 · The paper reports and discusses interesting findings involving carbon and tungsten carbide phases, disappearance of carbon peak in XRD in 5−15 wt% TiC range of the …

The peaks marked with pink triangles before annealing is ascribed to chromium carbide (denoted as Cr x C y ) impurities, including CrC, Cr 3 C 2, and Cr 7 C 3 , as commonly observed …

We investigated the synthesis of quasi-two-dimensional carbide (Ti3C2), with the name of MXene, by immersing Ti3AlC2 in 40% or 49% hydrofluoric acid (HF) at 0 C, 15 C or 60 C. The …

Dec 15, 2017 · Rhombohedral nickel carbide (Ni 3 C x, x=0.7, 1.2 and 1.5) nanoparticles (∼ 110 nm) with enhanced magnetic coercivity (H C up to 1.3 kOe) at temperature below the spin …

Jun 1, 2001 · As shown in an enlarged view of the XRD patterns (Fig. 2), the raw powder exhibits two extra peaks at 33.7° and 38.3° (identified by arrows) that are inherent to β-SiC powder …

The XRD profiles of the coatings produced with 60 wt% tungsten carbide powders are compared in Fig. 4. The main peak corresponds to an austenitic nickel based phase γ -Ni.

X-ray diffraction patterns of ~-SiC (3C or the cubic poly­ type of SiC) powders often exhibit an additional peak at d = 0.266 nm, high background intensity around the (Ill) peak,

1 day ago · The surface was then subjected to x-ray diffraction studies to determine the precipitate phases that formed, and a detailed chemical analysis of individual particles was …

• XRD indicates the presence of beta (3C-SiC). • The conversion layer is continuous, however sub- micron voids are present when viewed at high magnification. • HRTEM confirms the SiC …