为加速合成仿自然骨的含碳酸根纳米羟基磷灰石(CHA),以Ca(NO3)2·4H2O、NH4HCO3和(NH4)2HPO4为原料,采用微波快速(1 h)制备出纳米碳酸羟基磷灰石.采用TEM、XRD、IR测定了CHA的形貌和粒径、研究了CHA的取代类型及其热稳定性.研究结果表明:(1)微波加速合成的粉末为AB混合型取代,粒径为15～30 nm、长约40 nm的短棒状碳酸纳米羟基磷灰石;(2)煅烧温度对产物的相组成和CO32-的含量有很大影响,在700 ℃时,CHA稳定存在,CHA在900 ℃或900 ℃以上分解成TCP和HA的双相钙磷陶瓷粉末,并脱出部分CO2.说明微波法是一种快速合成热稳定性好的纳米碳酸羟基磷灰石的好方法.
参考文献
| [1] | Landi E.;Tampieri A.;Celotti G.;Vichi L.;Sandri M. .Influence of synthesis and sintering parameters on the characteristics of carbonate apatite[J].Biomaterials,2004(10):1763-1770. |
| [2] | Celotti G;Landi E;Sandri M et al.[J].Key Engineering Materials,2004,264-268:2071. |
| [3] | 高月侠;冉均国;芶立 et al.[J].稀有金属材料与工程,2002,31(Suppl):515. |
| [4] | Xu U C et al.[J].Advanced Materials,2000,3(12):195. |
| [5] | Sarig S.;Kahana F. .Rapid formation of nanocrystalline apatite[J].Journal of Crystal Growth,2002(Pt.1):55-59. |
| [6] | Meejoo S;Maneeprakorn W;Winotai P .Phase and thermal stability of nanocrystalline hydroxyapatite prepared via microwave heating[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2006(1):115-120. |
| [7] | Siddharthan A;Seshadri S K;Sampath Kumar T S .[J].Journal of Materials Science:Materials in Medicine,2004,15:1279. |
| [8] | Murugan R;Ramaknishna S .[J].Acta Biomaterialia,2006,2:201. |
| [9] | Sampath Kumar T S et al.[J].BIOMATERIALS,2000,21:1623. |
| [10] | Cullity B D.Elements of X-Ray Diffraction[M].MA,USA:Addison-Wesley,1978:555. |
| [11] | Vignoles M et al.[J].Calcified Tissue International,1988,43(02):33. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%