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Thermal stability and sintering behaviour of hydroxyapatite nanopowders

机译:羟基磷灰石纳米粉的热稳定性和烧结行为

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摘要

Hydroxyapatite (HA) nanopowders were synthesised following two different precipitation routes: (a) from calcium nitrate and diammonium hydrogen phosphate solutions and (b) from calcium hydroxide suspension and phosphoric acid solution. The influence of precipitation process, concentration, and synthesis temperature on HA particle size and morphology, phase composition, thermal stability, and sintering behaviour was investigated by means of: thermogravimetry and differential thermal analysis (TG-DTA), induced coupled plasma–atomic emission spectroscopy (ICP-AES), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), electron microscopy (TEM, SEM) and dilatometry.
机译:羟基磷灰石(HA)纳米粉是通过两种不同的沉淀途径合成的:(a)由硝酸钙和磷酸氢二铵溶液制成,(b)由氢氧化钙悬浮液和磷酸溶液制成。通过以下方法研究了沉淀过程,浓度和合成温度对HA粒径,形貌,相组成,热稳定性和烧结行为的影响:热重分析和差热分析(​​TG-DTA),感应耦合等离子体-原子发射光谱(ICP-AES),傅立叶变换红外光谱(FTIR),X射线衍射(XRD),电子显微镜(TEM,SEM)和膨胀计。

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  • 来源
    《Journal of Thermal Analysis and Calorimetry》 |2007年第1期|237-243|共7页
  • 作者单位

    Dept. of Chemical Sciences and Technologies INSTM Research Unit Tor Vergata University of Rome Tor Vergata Roma Italy 00133 Via della Ricerca Scientifica 1;

    Dept. of Chemical Sciences and Technologies INSTM Research Unit Tor Vergata University of Rome Tor Vergata Roma Italy 00133 Via della Ricerca Scientifica 1;

    Dept. of Materials Science and Chemical Engineering INSTM Research Unit Politecnico di Torino: LINCE Lab Politecnico of Torino Torino Italy 10129 Corso Duca degli Abruzzi 24;

    Dept. of Materials Science and Chemical Engineering INSTM Research Unit Politecnico di Torino: LINCE Lab Politecnico of Torino Torino Italy 10129 Corso Duca degli Abruzzi 24;

    Dept. of Chemical Sciences and Technologies INSTM Research Unit Tor Vergata University of Rome Tor Vergata Roma Italy 00133 Via della Ricerca Scientifica 1;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hydroxyapatite; nanopowders; sintering; thermal stability;

    机译:羟基磷灰石;纳米粉;烧结;热稳定性;

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