应用机械化学原理,研究了在振动磨样机中由磷酸二氢钙(MCPM)和氢氧化钙合成羟基磷灰石(HAP)过程的动力学机制,并建立了相应的动力学模型.结果表明,合成过程为生成中间产物二水磷酸氢钙(DCPD)的两步式反应,其中第二步反应在第一步反应结束后才开始,并且在很短的时间内(＜30s)迅速完成,即发生了"爆炸式"反应,反应过程可用类Avrami方程进行表征.探讨了发生"爆炸式"反应的可能机理.
参考文献
| [1] | Peters K.Mechanochemische Peaktionen[A].,1962:78-98. |
| [2] | ZHAO Zhong-wei;LI Hong-gui;SUN Pei-mei .Influence of mechanical activation on leaching kinetics of arsenopyrite[J].Transactions of Nonferrous Metals Society of China,2002(2):330-333. |
| [3] | 杨华明,王淀佐,Wang Dianzuo.特殊功能粉体的机械化学合成[J].金属矿山,2001(01):21-23,43. |
| [4] | Suryanarayana C;Ivanovb E;Boldyrev V V .[J].Materials Science and Engineering,2001,A304-306:151-158. |
| [5] | 俞耀庭;张兴栋.生物医学材料[M].天津:天津大学出版社,2000 |
| [6] | Mochales C;Briak BenAbdeslam HE;Ginebra MP;Terol A;Planell JA;Boudeville P .Dry mechanochemical synthesis of hydroxyapatites from DCPD and CaO: influence of instrumental parameters on the reaction kinetics.[J].Biomaterials,2004(7/8):1151-1158. |
| [7] | Silva CC;Valente MA;Graca MPF;Sombra ASB .The modulus formalism used in the dielectric analysis of hydroxyapatite and calcium phosphate with titanium formed by dry ball milling[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2005(33/36):2945-2950. |
| [8] | CAI Shu;GUAN Yong-hui;YAO Kang-de;YIN Yu-ji .Synthesis of Crystalline Hydroxyapatite from CaCO_3 and CaHPO_4 2H_2O by Mechanochemical Method[J].Transactions of Tianjin University,2002(4):239-242. |
| [9] | Suwa Y;Inagaki M;Naka S .[J].J of Material Science,1984,19:1397-1405. |
| [10] | Cocco G;Delogu F;Schiffini L .[J].Journal of Materials Synthesis and Processing,2000,8(3-4):167-180. |
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%