多层陶瓷结构Al2O3-Fe2O3/3Y-TZP梯度复合陶瓷的制备及性能

李皓鹏, 李宁, 颜家振, 周亚男, 魏维

李皓鹏, 李宁, 颜家振, 等. 多层陶瓷结构Al2O3-Fe2O3/3Y-TZP梯度复合陶瓷的制备及性能[J]. 复合材料学报, 2019, 36(3): 685-692. DOI: 10.13801/j.cnki.fhclxb.20180530.008
引用本文: 李皓鹏, 李宁, 颜家振, 等. 多层陶瓷结构Al2O3-Fe2O3/3Y-TZP梯度复合陶瓷的制备及性能[J]. 复合材料学报, 2019, 36(3): 685-692. DOI: 10.13801/j.cnki.fhclxb.20180530.008
LI Haopeng, LI Ning, YAN Jiazhen, et al. Preparation and properties of Al2O3-Fe2O3/3Y-TZP gradient composite ceramics with multilayer ceramic structure[J]. Acta Materiae Compositae Sinica, 2019, 36(3): 685-692. DOI: 10.13801/j.cnki.fhclxb.20180530.008
Citation: LI Haopeng, LI Ning, YAN Jiazhen, et al. Preparation and properties of Al2O3-Fe2O3/3Y-TZP gradient composite ceramics with multilayer ceramic structure[J]. Acta Materiae Compositae Sinica, 2019, 36(3): 685-692. DOI: 10.13801/j.cnki.fhclxb.20180530.008

多层陶瓷结构Al2O3-Fe2O3/3Y-TZP梯度复合陶瓷的制备及性能

基金项目: 科技型中小企业技术创新资金(15CXZJ0177)
详细信息
    通讯作者:

    李宁,博士,教授,博士生导师,研究方向为生物医用材料,E-mail:lining@scu.edu.cn

  • 中图分类号: TB332

Preparation and properties of Al2O3-Fe2O3/3Y-TZP gradient composite ceramics with multilayer ceramic structure

  • 摘要: 为更好地实现口腔修复体的美学修复效果,采用掺杂不同含量Fe2O3(0.01wt%~0.09wt%)和Al2O3(0.1wt%)的3 mol% Y2O3稳定的ZrO2(3Y-TZP)粉体为原料,经过铺粉、压制、烧结等工艺制得色度渐变的多层陶瓷结构Al2O3-Fe2O3/3Y-TZP梯度复合陶瓷。对该梯度复合陶瓷的色度分布、烧结性能和力学性能进行检测,同时研究了Fe2O3和Al2O3的掺杂对3Y-TZP陶瓷组织和性能的影响。结果表明,制得的Al2O3-Fe2O3/3Y-TZP梯度复合陶瓷色度由红黄向白色沿成分变化方向呈梯度变化,与天然牙齿色度分布规律一致;力学性能呈梯度变化并从无色端到有色端逐渐降低,但仍满足牙科使用需求(≥ 800 MPa);在无色瓷层中掺杂微量Al2O3(0.1wt%)可以改善Al2O3-Fe2O3/3Y-TZP梯度复合陶瓷的烧结性能,避免在预烧结过程中发生开裂。微量Fe2O3和Al2O3的掺杂会促进其在烧结过程中的致密化及晶粒长大;微量Fe2O3(0.01wt%)和Al2O3(0.1wt%)的掺杂有助于提高3Y-TZP陶瓷的挠曲强度,然而随着Fe2O3掺杂量的继续增多(≤ 0.09wt%)挠曲强度降低。
    Abstract: In order to achieve a better close shade of artificial restoration match with natural dentition, a color-gradient 3 mol% Y2O3-stabilized ZrO2 (3Y-TZP) ceramics for dental restoration was prepared by forming and sintering process with powders of Fe2O3 (0.01wt%-0.09wt%)-Al2O3 (0.1wt%)/3Y-TZP as the raw materials. Their colorimetric characterization, sintering performance, and mechanical properties were tested, and the effect of Fe2O3 and Al2O3 on 3Y-TZP ceramics was studied. The results show that the color of the gradient Al2O3-Fe2O3/3Y-TZP changing from saffron yellow to white gradually, which matches with the natural dentition. In addition, the doping of trace Al2O3 (0.1wt%) on uncolored porcelain layer can avoid the cracking between porcelain layers during the presintering process. The flexural strength changes of gradient and can meet the need of dental restoration (≥ 800 MPa). The doping of trace Fe2O3 (0.01wt%) and Al2O3 (0.1wt%) can improve the densification and grain growth during the sintering process. And the doping of trace Fe2O3 (0.01wt%) and Al2O3 (0.1wt%) in 3Y-TZP can increase the flexural strength of the Al2O3-Fe2O3/3Y-TZP, but the flexural strength decreases when more Fe2O3 is doped (≤ 0.09wt%) in 3Y-TZP.
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出版历程
  • 收稿日期:  2018-03-28
  • 修回日期:  2018-05-09
  • 刊出日期:  2019-03-14

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