High Resolution Transmission Electron Microscopy Investigation of Single Crystal Apatite Fibres Synthesized by using a Homogeneous Precipitation Method
High Resolution Transmission Electron Microscopy Investigation of Single Crystal Apatite Fibres Synthesized by using a Homogeneous Precipitation Method
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均相沉淀法合成的单晶磷灰石纤维的高分辨率透射电子显微镜研究
DOI：
10.4028/www.scientific.net/kem.240-242.509
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
W. Bonfield
中科院分区：
文献类型：
--
作者：
M. Aizawa;A. Porter;S. Best;W. Bonfield
在Ca（NO_3）_2-（NH_4）_2HPO_4-HNO_3体系中，用均匀沉淀法合成了磷灰石纤维。产物由含碳酸盐的磷灰石纤维组成，其具有沿（h 00）面的优选取向沿着。为了表征单根纤维的性能，使用高分辨率透射电子显微镜（HR-TEM）进行了研究。从HR-TEM的结果证实，磷灰石纤维是c轴取向平行于纤维长轴的单晶。此外，纤维是高度应变的缺陷，并且由优先取向为a轴平行于基底表面的域组成。
Apatite fibres were synthesized from aqueous solutions containing ur ea in the Ca(NO3)2-(NH4)2HPO4-HNO3 systems by a homogeneous precipitation method. The products were composed of carbonate-containing apatite fibres with preferred orienta tion along the (h00) planes. In order to characterise the properties of individual fibres, an investig ation was performed using a high-resolution transmission electron microscopy (HR-TEM). It was confirmed, from the results of HR-TEM, that the apatite fibres were single crystals with the c-axis orientation parallel to the long axis of the fibre. In addition, the fibres were highly strained defects and consisted of domains that were preferentially oriented with the a-axis parallel to the surface of the substr ate.