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首页> 外文会议>International Conference on Advanced Ceramics and Composites >ASSESSING THE CARBON CONCENTRATION IN BORON CARBIDE: A COMBINED X- RAY DIFFRACTION AND CHEMICAL ANALYSIS
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ASSESSING THE CARBON CONCENTRATION IN BORON CARBIDE: A COMBINED X- RAY DIFFRACTION AND CHEMICAL ANALYSIS

机译：评估碳化硼中的碳浓度：组合X射线衍射和化学分析

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摘要

Structural and chemical characterization of commercial and Rutgers University (RU) produced boron carbide powders was conducted. Literature data was used to develop fittings to determine bound carbon concentrations in boron carbide powders and ceramics based on the lattice parameter variations. X-ray diffraction techniques were used to determine free carbon content in commercial/RU powders using the spiking method. A relationship was established between the relative intensities of the carbon and boron carbide peaks to the percentage of added carbon, and the free-carbon content was obtained by extrapolation. The asymmetry of the carbon peak was modeled using curve fitting techniques based on the amorphous, disordered and ordered nature of carbon. The variations in the stoichiometry of different commercial boron carbide powders was also investigated.
机译：进行了商业和罗格斯大学（Ru）生产的硼碳化物粉末的结构和化学表征。文献数据用于开发配件以确定基于晶格参数变化的碳化硼粉末和陶瓷中的结合碳浓度。使用尖刺法使用X射线衍射技术来确定商业/ ru粉末中的游离碳含量。在碳和碳化硼峰的相对强度与加入碳百分比之间建立的关系，并通过外推得到游离碳含量。基于碳的无定形，无序和有序性质，使用曲线配件技术进行建模碳峰的不对称性。还研究了不同商业硼碳化物粉末的化学计量的变化。

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