5.将制备好的高熵合金涂层在氮气保护850℃下热处理4h,目的是使涂层中的合金元素发生充分扩散,析出硬质相,从而提高涂层的硬度。 6.将制备得到的feconicrmn高熵合金涂层通过x射线衍射分析(xrd)相成分。结果如图1所示,表明feconicrmn高熵合金涂层的在热处理过程中发生了相的转变,提高了涂层性能。 7.对所制备涂层的截面...
[0036] 图1为本发明实施例1制备的高熵金属氧化物FeCoNiCrMnO 的SEM照片,从图中可 x 以看出,制备的材料是由纳米粒子组成; [0037] 图2为本发明实施例1制备的高熵金属氧化物FeCoNiCrMnO 的XRD图谱,从图中可 x 以看出所有样品的XRD衍射峰均可归属于no.PDF#06‑0532,为CrO结构; [0038] 图3为本发明实施例1...
图1 (a)高熵金属氧化物(FeCoNiCrMn)3O4的材料合成与传感器件制备流程,以及材料表征:(b) XRD,(c) SEM,(d) TEM, (e) HRTEM,(f,g) SAED和(h) EDS。 图2 (a)气敏测试系统原理图,(FeCoNiCrMn)3O4在室温下对5 ppm NO2的(b)...
Ex-situ XRD and transmission electron microscope are applied to unravel the lithium-storage mechanism of (FeCoNiCrMn)3O4, an amorphization reaction process occurs during the initial discharging and the amorphous structure is maintained in subsequent cycles. The synergetic effect of multiple metal cations...
(TD)) with increasing shear strain from the middle to the edge of the sample, a texture experiment employing the dimensional high-energy X-ray diffraction (HE-XRD) synchrotron technique was performed using the 11-ID-C beamline of an advanced photon source (Argonne National Laboratory, Chicago,...
In the XRD patterns of the fractured samples, itcan be seen that sample H3, which was deformed at a high strainrate (Region II), still retains the main fcc structure. By contrast,several extra minor diffraction peaks identified as manganese ox-ides are presentin the H4 specimen, which was...
In-situ high-temperature X-ray diffraction (HT-XRD) is used to reveal structure evolution of mixed oxides with the calcination temperature increase and a single-phase spinel-structured (FeCoNiCrMn)(3)O-4 is obtained at 900 degrees C. The effect of temperature on structure and electrochemical ...
In-situ high-temperature XRD technique was used to investigate the structure evolution of (FeCoNiCrMnZnLi)3O4 and a single-phase HEO was acquired at 900 oC. As the anode of LIBs, all the HEOs (FeCoNiCrMnXLi)3O4 display excellent cyclic stability and rate capability owe to the expedite three...
The microstructures and the solidification processes simulation of multi-principal high-entropy alloy FeCoNiCrMn were studied by using both experimental and computational approaches. The microstructures were identified by methods of XRD, SEM and EDS. The solidification process was simulated by Scheil-...