以Ca(H2PO4)2·H2O和H3PO4为原料,按0.45的Ca/P物质的量比制备了偏磷酸钙玻璃,在300～700 ℃对玻璃进行热处理,获得了偏磷酸钙玻璃陶瓷.利用XRD、FT-IR等研究了玻璃结晶化过程中的结构变化,利用SEM观察了玻璃陶瓷的微观形貌.结果表明:玻璃陶瓷中的结晶相为纯的β-Ca(PO3)2;玻璃结晶过程伴随温度提高逐渐发生,在400 ℃保温3 h已经形成了β-Ca(PO3)2晶体相;温度提高,玻璃陶瓷红外光谱的精细结构明显;随结晶化温度升高和保温时间延长,玻璃陶瓷中结晶相形貌由纤维状变为晶界明显紧密排布的短棒状晶粒.
参考文献
| [1] | Rezwan K;Chen QZ;Blaker JJ;Boccaccini AR .Biodegradable and bioactive porous polymer/inorganic composite scaffolds for bone tissue engineering.[J].Biomaterials,2006(18):3413-3431. |
| [2] | Park EK.;Lee YE.;Choi JY.;Oh SH.;Shin HI.;Kim KH.;Kim SY.;Kim S. .Cellular biocompatibility and stimulatory effects of calcium metaphosphate on osteoblastic differentiation of human bone marrow-derived stromal cells[J].Biomaterials,2004(17):3403-3411. |
| [3] | Ota Y;Iwashia T;Kasuga T et al.Bone Formation Following Implantation of Fibrous Calcium Compounds (β-Ca(PO3)2,Ca(CO3)2(Aragonite[J].Journal of Materials Science:Materials in Medicine,2002,13(09):895-900. |
| [4] | Kasuga T.;Tsuji K.;Abe Y.;Ota Y. .PREPARATION OF HIGH-STRENGTH CALCIUM PHOSPHATE CERAMICS WITH LOW MODULUS OF ELASTICITY CONTAINING BETA-CA(PO3)(2) FIBERS[J].Journal of the American Ceramic Society,1996(7):1821-1824. |
| [5] | Abe Y;Kasuga T;Hosono H et al.Preparation of High-strength Calcium Phosphate Glass-ceramics by Unidirectional Crystallization[J].Journal of the American Ceramic Society,1984,67(07):142-144. |
| [6] | Lee J S;Hsu C K .A Study on Thermal Properties of β-Ca(PO3)2 Whiskers and on Devitrification Mechanism of Calcium Phosphate Glass System[J].Thermochimica Acta,1999,339(1-2):103-109. |
| [7] | Wang K;Russel C;Liu C S .Preparation,mechanical Properties and Corrosionbehaviors of Oriented Ca(PO3)2 Glass-ceramics[J].Materials Chemistry and Physics,2008,111(01):106-113. |
| [8] | Yuanzheng Yue;Ralf Keding;Christian Rhssel .Oriented calcium metaphosphate glass-ceramics[J].Journal of Materials Research,1999(10):3983-3987. |
| [9] | 陆雷,王浩,隋普辉,武相萍.晶核剂对锂锌硅系微晶玻璃析晶及显微结构的影响[J].人工晶体学报,2009(02):510-514. |
| [10] | AbeY;Arahori T;Naruse A .Crystallization of Ca(PO3)2 Glass below the Galss Transition Temperature[J].Journal of the American Ceramic Society,1976,59(11-12):487-490. |
| [11] | Rothammel W;Burzlaff H;Specht R .Structure of Calcium Metaphosphate Ca(PO3)2[J].Acta Crystallographica,1989,C45(04):551-553. |
| [12] | Bertoluzza A;Caccari S;Tinti A et al.FTIR and Ranman Spectra of Bioceramics Obtained by an Lnnovative Method[J].Journal of Materails Science:Materials in Medicine,1995,6(02):76-79. |
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%