采用沉淀法合成羟基磷灰石粉体,将R2O-Al2O3-B2O3-SiO3体系玻璃粉按一定的比例与HAP粉混合,采用等静压成型和干压法成型2种成型方法对羟基磷灰石-玻璃复合粉体成型,分别在1150℃、1200℃、1250℃下微波烧结.利用XRD、IR和SEM等手段对烧结过程中的相变和陶瓷显微结构进行研究,结果表明随着烧结温度的升高,羟基磷灰石-玻璃复合陶瓷的结构逐渐致密;烧结温度低于1200℃时主晶相没有发生明显变化,当烧结温度达到1250℃时等静压成型的样品中HAP发生了明显的分解;等静压成型的羟基磷灰石一玻璃复合陶瓷的致密度优于普通干压法成型的陶瓷.
参考文献
| [1] | Gorcia R;Doremus R H.Electron microscopy of the bone-hydroxyapatite interface form a human dental implant[J].Journal of Materials Science:Materials in Medicine,1992(03):154-155. |
| [2] | Alcala J .Fatigue and static crack propagation in yttria-stabilized tetraged zirconia polycrystal:crack groeth micromechainisms and precracking effects[J].Journal of the American Ceramic Society,1997,80(11):2755-2772. |
| [3] | Wang Z Q;Xue D F;Chen X X et al.Mechanical and biomedical properties of hydroxyapatite-based gradient coating on α-Al2O3 ceramic substrate[J].Journal of Non-Crystalline Solids,2005,351:1675-1681. |
| [4] | 王志强,陈晓旭,蔡英骥,吕秉玲.R2O-Al2O3-B2O3-SiO2系统玻璃对羟基磷灰石的烧结及其相转变的影响[J].玻璃与搪瓷,2003(01):16-19. |
| [5] | Knowles JC.;Santos JD.;Talal S. .SINTERING EFFECTS IN A GLASS REINFORCED HYDROXYAPATITE[J].Biomaterials,1996(14):1437-1442. |
| [6] | Margrita D L;Peter L;Istvan S .Composite bioceramics in the system hydroxyapatite (fluorapatite)-yttria stabilized zirconia[J].Advances in Science Technol,1995,12:321-323. |
| [7] | Rapacz-Kmita A;Slosarczyk A;Paszkiewicz Z;Paluszkiewicz C .Phase stability of hydroxyapatite-zirconia (HAp-ZrO2) composites for bone replacement[J].Journal of Molecular Structure,2004(1/3):333-340. |
| [8] | Rapacz-Kmita A;S'lo'sarczyk A;Paszkiewiez Z et al.Mechanical properties of HAp-ZrO2 composites HAP-ZrO2 composite coatings prepared by plasma spraying for biomedical application[J].Ceramics International,2005,31:567-571. |
| [9] | Suchanek WL.;Yoshimura M. .Preparation of fibrous, porous hydroxyapatite ceramics from hydroxyapatite whiskers[J].Journal of the American Ceramic Society,1998(3):765-767. |
| [10] | 蔡杰;郭景坤 .陶瓷材料微彼烧结[J].无机材料学报,1995,10(02):164-168. |
| [11] | Fang Y;Agrawal D K;Roy D M et al.Microwave sintering of hydroxyapatite[J].Journal of Materials Research,1994,9(01):180-187. |
| [12] | 王志强,马铁成,蔡英骥,韩趁涛,吕秉玲.湿法合成纳米羟基磷灰石粉末的研究[J].无机盐工业,2001(01):3-5. |
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%