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首页> 外文期刊>Acta biomaterialia >Energy dispersive X-ray diffraction study of phase development during hardening of calcium phosphate bone cements with addition of chitosan.
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Energy dispersive X-ray diffraction study of phase development during hardening of calcium phosphate bone cements with addition of chitosan.

机译：添加壳聚糖的磷酸钙骨水泥硬化过程中相发展的能量色散X射线衍射研究。

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The aim of this work was to study the phase transformation during the setting reaction of two calcium phosphate bone cements based on either alpha tricalcium phosphate (alpha-TCP) or tetracalcium phosphate (TetCP) initial solid phase, and a magnesium carbonate-phosphoric acid solution as the hardening liquid. Low molecular weight (38.2kDa) chitosan was used to retard the cement's setting reaction. To follow the kinetics of the phase development, an energy dispersive X-ray diffraction technique was applied. This technique allowed the collection of diffraction patterns from the cement pastes in situ starting from 1min of the setting process. In the case of the TetCP-based cement, the appearance and evolution of an intermediate phase was detected.
机译：这项工作的目的是研究两种磷酸钙骨水泥基于α磷酸三钙（α-TCP）或磷酸四钙（TetCP）初始固相以及碳酸镁-磷酸溶液的固化反应过程中的相变。作为硬化液。低分子量（38.2kDa）的壳聚糖用于延迟水泥的固化反应。为了跟踪相发展的动力学，应用了能量色散X射线衍射技术。该技术允许从凝固过程的1分钟开始就从水泥浆中收集衍射图样。在基于TetCP的水泥的情况下，检测到中间相的出现和演变。

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