Fourier-transform infrared spectroscopy and X-ray powder diffraction analyses revealed that pure B4C, pure AgFe2O4, and the B4C/AgFe2O4 composites were synthesized successfully. Field emission...

2018年12月1日 · In this study, B4C nanopowder was synthesized in an aqueous ethanolic solution via sol-gel technique. The current approach could be considered as a novel method in order to achieve B4C nanoparticles of minimum ever reported particle size.

2018年1月22日 · We present a study regarding the low-pressure RF plasma cleaning of carbon contaminated B 4 C test samples via inductively coupled O 2 /Ar, H 2 /Ar, and pure O 2 RF plasma produced following...

The detailed x-ray absorption near edge spectroscopy (XANES) comparison of NiV/B4C multilayers, NiV coating, and B4C coating showed the chemical state change induced by background pressure.

2023年9月1日 · Natural B 4 C samples were characterized by grazing incidence X-ray reflectivity (GIXRR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry (TOF-SIMS), and scanning electron microscopy (SEM).

2017年2月28日 · Films are deposited by reactive co-sputtering of boroncarbide (B4 C) and boronnitride (BN) with varying N 2/Ar gas flow ratio by DC and RF sputtering respectively. XPS studies are performed to deduce the bonding and chemical properties of the BCN thinfilms.

Boron carbide (B4C) is one of the few materials that is expected to be most resilient with respect to the extremely high brilliance of the photon beam generated by free electron lasers (FELs) and...

2011年2月22日 · A correlation was observed between surface carbon composition and the bulk toughness and hardness. The C(ls) XPS spectra were utilized to determine the nature of carbon in B 4 C on freshly fractured and Ne + bombarded surfaces. Two distinct peaks were observed in the C(ls) region.

2020年9月1日 · X-ray photoelectron spectroscopy (XPS) is used to analyze the surface chemical compositions of B 4 C@C nanoparticle with core-shell structure as electrode materials of MSCs. The full XPS spectrum survey indicates the existence of B, C and O in the surface of electrodes before and after 50000 cycles test, as shown in Fig. S6 .

2017年2月1日 · 薄膜是通过碳化硼 (B 4 C) 和氮化硼 (BN) 的反应性共溅射沉积的，分别通过 DC 和 RF 溅射使用不同的 N 2 /Ar 气体流量比。 进行 XPS 研究以推断 BCN 薄膜的键合和化学性质。 光学带隙 (Eg) 研究是根据目标功率、气体比率和沉积温度的变化进行的。 发现Eg 随N 2 /Ar 流量比和沉积温度而增加。 在 20 W DC 下沉积的 BCN 表现出更高的带隙范围，在 N 2 /Ar = 0.75 时达到的最高值为 3.7 eV。 对于沉积膜，在 N 2 /Ar = 0.25 时达到的最低值是 1.9 eV。 摘要 研究 …