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 。

Fourier Transform Infrared Spectrometer (FTIR), which has been widely used for BN characterization, can also be applied for differentiating the crystal orientation of...

The provided boron nitride (BN) nanostructures are analyzed using X-ray diffraction (XRD) patterns to determine their average crystalline size and surface morphology.

2025年1月5日 · In this study, ex-situ and in-situ characterization techniques (e.g., Raman spectroscopy, X-ray Diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR)) were applied to investigate the structural change of BNNT and h-BN at high (up to 800 °C) and low (down to -50 °C) temperatures.

2020年8月15日 · BNNS were characterized by X-ray diffraction (XRD) for crystal structure, scanning electron microscopy for dimensions and morphology, energy dispersive X-ray analysis for chemical composition and Fourier transform infrared spectroscopy for sp 2 BN bond detection. The thickness of BNNS determined from both XRD data (using Scherrer equation) and ...

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 ...

We have shown that via FTIR absorbance spectroscopy and the measurement of R/TO peak ratios can be a simple method to quantify the weight % of h-BN in mixed samples. While XRD can also be utilized as a complementary analysis to help distinguish between samples with varying degrees of impurities.

Download scientific diagram | XRD patterns for the h-BN (a), t-BN (b) and w-BN (c) nanopowders. The square symbols indicate the location of the different crystallographic phases.

2021年1月17日 · 其中包含石墨烯、六方氮化硼（h-BN）、二硫化钼等TMDs的拉曼（Raman）、光致发光（PL）、XRD、带隙、 晶格结构 、 载流子迁移率 及热导率热膨胀系数等参数，以供大家参考，表中数据均来源于文献，如有不准确之处，希望大家指出：

2024年4月9日 · XRD：相变的秘密 - XRD揭示了c-BN在1550℃时的神奇转变，从晶格结构的c-BN转为超稳定的h-BN。 随着温度的升高，c-BN在1850°C的热处理后，衍射峰的消失无疑是其完全转变的证明。 XRD图谱犹如时间的画卷，记录了c-BN烧结过程中的温度效应。 纳米世界里的化学印迹 - XPS测试揭示了FFSA复合材料表面的化学变化，Fe、Si、Al峰的消失，以及B1s和N1s光谱所揭示的复杂键合状态，如B-C、B-N、B-OxNy、B2O3及N-O、N-C、N-B键，这描绘了h …