| The transformation of single-crystal calcium phosphate ribbon-like fibres to hydroxyapatite spheres assembled from nanorods | |
| Department | 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
Zhang YJ(张彦杰); Lv JJ(吕晋军)
| |
| 2008 | |
| Source Publication | Nanotechnology
 |
| ISSN | 0957-4484 |
| Volume | 19Pages:155608(1-10) |
| Abstract | Two precursors of ribbon-like anhydrous dicalcium phosphate (DCPA) and calcium phosphate fibres were successfully synthesized at 85 ◦C through a simple and mild pathway from Ca(NO3)2·4H2Oand (NH4)2HPO4 upon the hydrolysis of urea. Different molar concentrations of urea resulted in different precursors, including precursor I (DCPA phase) and precursor II (calcium phosphate with DCPA, octacalcium phosphate (OCP) and hydroxyapatite (HAp) phase). By immersing the two precursors in ammonium hydroxide solution (pH = 12), the transformation from precursors to hydroxyapatite could be achieved. X-ray diffraction (XRD) results combined with transmission electron microscopy (TEM) indicated that DCPA fibres (precursor I) were transformed to HAp nanorods in transformation I. In transformation II,dandelion-like spheres assembled by HAp nanorods were obtained from calcium phosphate (precursor II). The mechanisms of transformations I and II are also proposed and discussed based on the XRD and TEM results. |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the National Natural Science Foundation of China (50572107);‘West Light Program of 2003’ of the Chinese Academy of Sciences |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 金属基高温润滑材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2682 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Lv JJ(吕晋军) |
| Recommended Citation GB/T 7714 | Zhang YJ,Lv JJ. The transformation of single-crystal calcium phosphate ribbon-like fibres to hydroxyapatite spheres assembled from nanorods[J]. Nanotechnology,2008,19:155608(1-10). |
| APA | 张彦杰,&吕晋军.(2008).The transformation of single-crystal calcium phosphate ribbon-like fibres to hydroxyapatite spheres assembled from nanorods.Nanotechnology,19,155608(1-10). |
| MLA | 张彦杰,et al."The transformation of single-crystal calcium phosphate ribbon-like fibres to hydroxyapatite spheres assembled from nanorods".Nanotechnology 19(2008):155608(1-10). |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2008155608.PDF（4220KB） | 开放获取 | License | View Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment