Boron-enriched pyrolitic carbon: material for biomedical and engineering applications

IF 0.1 Q4 MULTIDISCIPLINARY SCIENCES DOKLADY NATSIONALNOI AKADEMII NAUK BELARUSI Pub Date : 2023-07-06 DOI:10.29235/1561-8323-2023-67-3-250-256
M. Demidenko, D. Adamchuk, A. P. Rusanov, S. V. Sirotkin, L. Ivanko, S. A. Maksimenko
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Abstract

The article describes a technological set-up and the synthesis methodology of boron-enriched pyrolytic carbon (B-PyC). The chemical vapor deposition (CVD) approach lies in the basis of the methodology. The synthesis occurs on the inner surface of a cylindrical graphite assembly indirectly heated to the temperatures of 1450–1570 °C. Controlled low-density flows of nitrogen, boron trichloride and carbonaceous gases react in the assembly, producing a B-PyC film deposited on the graphite substrate. The set-up has been designed to provide fabrication of B-PyC plates possessing features required for heart valve endoprosthesis: chemical inertia and biocompatibility combined with high hardness, high elasticity, and long operating life. The morphology and chemical composition of the material have been studied by electron scanning microscopy and Raman spectroscopy. The material is used at the “Electronmash Plant” for fabrication of heart valve endoprosthesis leaflets.
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富含硼的热解碳:用于生物医学和工程应用的材料
本文介绍了富硼热解炭(B-PyC)的工艺装置和合成方法。化学气相沉积(CVD)方法是该方法的基础。合成发生在间接加热至1450–1570°C的圆柱形石墨组件的内表面上。受控的低密度氮气、三氯化硼和含碳气体在组件中反应,在石墨基底上形成B-PyC膜。该装置旨在提供B-PyC板的制造,该板具有心脏瓣膜内假体所需的特征:化学惯性和生物相容性,结合高硬度、高弹性和长使用寿命。用电子扫描显微镜和拉曼光谱对材料的形貌和化学成分进行了研究。这种材料在“Electronmash工厂”用于制造心脏瓣膜内人工小叶。
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DOKLADY NATSIONALNOI AKADEMII NAUK BELARUSI
DOKLADY NATSIONALNOI AKADEMII NAUK BELARUSI MULTIDISCIPLINARY SCIENCES-
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