| 低熔可切削生物活性微晶玻璃的研究 |
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| 引用本文： | 秦小梅,修稚萌,左良,李松.低熔可切削生物活性微晶玻璃的研究[J].无机材料学报,2003,18(6):1158-1162. |
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| 作者姓名： | 秦小梅 修稚萌 左良 李松 |
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| 作者单位： | 东北大学材料与冶金学院 沈阳 110004 |
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| 基金项目： | 教育部《高等学校优秀青年教师教学科研奖励计划》基金，辽宁省科技攻关项目(2001222001) |
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| 摘 要： | 选择一种出SiO2-MgO-Al2O3-K2O-CaO-P2O5-F基础玻璃体系,并添加不同量的ZnO,制备出性能良好的可切削生物微晶玻璃.结果表明,由于ZnO的添加,可使母玻璃的熔化温度由1450℃降至1300℃,可切削生物活性微晶玻璃的母玻璃能够在较低的温度熔化制备.母玻璃晶化后析出相主要为云母相和氟磷灰石相;各种晶相的组合形貌为花瓣形态,其断口呈现穿晶断裂的特征,并有晶体拔出,使材料具备了较高的强度;由于析出了较多的云母相,该微晶玻璃兼具良好的可切削性能.
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| 关 键 词： | 低熔化温度 可切削 生物活性 微晶玻璃 |
| 文章编号： | 1000-324X(2003)06-1158-05 |
| 收稿时间： | 2002-9-23 |
| 修稿时间： | 2002年9月23日 |
Low Melting Temperature Machinable Bioactive Glass-ceramic |
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| QIN Xiao-Mei,XIU Zhi-Meng,ZUO Liang,LI Song.Low Melting Temperature Machinable Bioactive Glass-ceramic[J].Journal of Inorganic Materials,2003,18(6):1158-1162. |
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| Authors: | QIN Xiao-Mei XIU Zhi-Meng ZUO Liang LI Song |
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| Affiliation: | School of Materials & Metallurgy; Northeastern University; Shenyang 110004; China |
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| Abstract: | A basic composition of SiO2-MgO-Al2O3-K2O-CaO-P2O5-F glass system was selected,
and different contents of ZnO were added. The melting results show that the addition of ZnO can reduce the melting temperature of the glass
from 1450℃ to 1300℃. Thus, the transparent as-cast glasses of the machinable bioactive glass ceramic can be obtained at the lower temperature.
The main phases of the glass ceramic are mainly mica phase and apatite phase after crystallization. Microstructure of the glass ceramic is petaloid-like.
The fracture of the glass ceramic is transgranular and some crystals are drawn and this feature makes the glass ceramic show high strength. The glass ceramic
also has good machinability due to the existence of mica phase. |
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| Keywords: | low-melting temperature machinability bioactive glass-ceramic |
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