XRD peak migration and apparent shift of cell-edge lengths of nano-sized hematite, goethite and lepidocrocite 来自 Cambridge Univ Press 喜欢 0 阅读量: 56 作者: Stanjek, H.摘要: X-ray powder diffraction patterns were simulated for nano-sized hematite, goethite and lepidocrocite by three-...
33、zero shift measure peak positions with a peak search algorithm or profile fitting profile fitting is more accurate but more time consuming then numerically refine the lattice parameters,Crystallite Size and Microstrain,Crystallites smaller than 120nm create broadening of diffraction peaks this peak ...
Furthermore, the Raman spectrum of three crystals displayed a blue shift in several bands, including the B1g libration, the N-O in-plane deformation, as well as the emergence of peaks at 109.5 cm⁻¹, 107.08 cm⁻¹, and 221.21 cm⁻¹, respectively. A general trend of ...
(LOAD, SDI & SCLK) to access the programmable features and controls of the chip. The serial interface uses a 16-bit shift register. The first 6 bits shifted in are the address bits, the next 10 bits are the data bits. The address bits select which of the internal registers will...
Neutron-irradiation-induced defects in 3C–SiC irradiated to 2.8–4.2×1026n/m2 at 480–735°C were investigated by XRD measurement, isochronal annealing and DFT calculation. The XRD peak shift revealed different features between the specimens irradiated at 480°C and higher temperature than 585°C...
For the cooling process, the phase transition temperature for VO2 (R) to VO2 (M) was significantly lower than that of the heating process. As shown in Fig. 5a–c, the shoulder peak of the (0 1 1) plane at 28.2° of VO2 (M) began to appear at about 75 °C and gradually stren...
(002) peaks (inset of Fig. 2a) have presented a shift to the lower 2θ diffraction angle from 21.12° to 20.66°,(meanwhile the (004) peak, a senior diffraction peak, shows similarly shift trend), indicating that the interlayer spacing of the graphitic basal layers increased with ...
It is important to note that the separation of the two peaks of each doublet is always kept constant in hertz, a behaviour expected for a doublet arising from a scalar J-coupling. This peak separation cannot be explained by residual quadrupolar splittings (dipolar/quadrupolar second order ...
As the degree of reduction increases, the peak shift to higher 2θ values and forms doublets with highly reduced material. Therefore, the degree of reduction during the smelting process can be estimated by: (a) Intensity ratio between the unreduced rutile peak and the reduced rutile peaks (b...