2020年11月1日 · XRD of the as-received cBN powders reveals two main peaks at 43.3°2θ (111) and 74.1°2θ (220), corresponding to the cubic phase of BN (PDF 00–035-1365). XRD patterns for the 35–45 μm cBN powders displayed uncharacteristically intense (220) peaks; mostly likely caused by preferred orientation as the large particles settled onto the zero ...

6、 x射线衍射 （xrd）： 为了研究c-BN的相变温度和微观结构变化，对c-BN粉末进行了热处理（1450℃-1850 °C）来确定合适的烧结温度。 从图6中可以看出，在1450℃热处理后，c-BN的衍射峰没有变化，而h-BN的（002）衍射峰在1550°C热处理后开始出现 。

After reaching ambient pressure and temperature, the compact pillars of polycrystalline cBN formed and were analyzed by XRD and Raman (Fig. 2). The XRD data show that cBN90 and cBN120...

2020年6月1日 · X-ray diffraction (XRD) with Cu Κα radiation (λ = 0.15406 nm) was performed to analyze the crystallinity, phase composition, purity residual stress, and preferred orientations of the synthesized samples.

2019年2月20日 · The X-ray diffraction (XRD) patterns of the raw materials used in this study and the sintered HSHBN bulks with 0–100 wt% cBN sintered at 1700 °C for 5 min are shown in Fig. 2a.

作为超硬材料立方氮化硼 (cBN ) 的合成原料, 不同有序度的 BN 与 cBN 合成的关系 一直引起关注, 便是, 迄今为止尚未形成一致的看法。 邱淑蓁等[ 2 ] 发现以 M g 为催化剂在 6. 0GPa、 1700℃下只有较高有序度的 hBN (G.

2010年7月1日 · In this paper, optical properties of cubic boron nitride (cBN) in forms of films, powders and monocrystals are studied in vibrational spectral regions. For cBN single crystals, the reststrahlen peak reflectivity of about 95% has been obtained. The second-order Raman scattering spectra induced by visible light excitation is also presented.

2012年4月10日 · The present study is concerned with the X-ray diffraction (XRD) analysis of cBN micropowders activated by Eu, Tb, Ce, and Tm in higher concentrations than achieved earlier. This study gives an idea of the structural properties of materials.

2011年4月24日 · 本文研究了不同品种立方氮化硼（cBN）晶体的Raman光谱特性，并对其原因进行了分析探讨。目 的是在此基础上进一步研究cBN的Raman峰与其制备条件和结构特征之间的关系，并为cBN的质量表 征提供理论依据。

Figure 2 a presents the XRD pattern of the synthetic cBN nanoparticles. Four characteristic peaks were observed at 43.39°, 50.28°, 74.33°, and 90.22°, which correspond to the (111), (200),...