Zhao C Q, Wu S Q, Lu Y J, Gan Y L, Guo S, Lin J J, Huang T T, Lin J X
Key laboratory of Optoelectronic Materials Chemical and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China; College of Materials Science and Engineering, Fujian Normal University, Fuzhou, China.
Key laboratory of Optoelectronic Materials Chemical and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China.
J Mech Behav Biomed Mater. 2016 Oct;63:75-85. doi: 10.1016/j.jmbbm.2016.06.010. Epub 2016 Jun 14.
Low-fusing bonding agents have been widely applied in Ti-ceramics restorations. As an important category, borate bonding agents have great potentials in increasing Ti-porcelain bonding. The purpose of this study is to evaluate the effect of borate bonding agent with addition of Na2O and Al2O3 on Ti6Al4V-porcelain bonding. The thermal properties of borate bonding agent, such as glass transition temperature (Tg) and crystallization peak temperature (Tp), were investigated to establish the sintering process. And the coefficient of thermal expansion (CTE) was to evaluate the matching effect of porcelain to Ti6Al4V. The bond strength was analyzed by the three point bending test. The microscopic morphology of the borate bonding agent surface after sintering, the interface of Ti-borate bonding agent-porcelain, and the fracture mode after porcelains fracture, were studied to assess the influence of borate bonding agent on Ti6Al4V-ceramics. With the addition of Na2O and Al2O3, the porcelain residues were observed increased indication on the Ti6Al4V surface after porcelain fracture and the bond strength was acquired the maximum (49.45MPa) in the bonding agent composition of 75.70B2O3-5.92La2O3-11.84SrO-4.67Na2O-1.87Al2O3. Those results suggest that borate bonding agent is an effective way to improve the Ti6Al4V-ceramics bond strength. And the addition of Na2O and Al2O3 strengthen this effect.
低熔点粘结剂已广泛应用于钛陶瓷修复体。作为一个重要类别，硼酸盐粘结剂在提高钛与瓷的粘结方面具有巨大潜力。本研究的目的是评估添加Na2O和Al2O3的硼酸盐粘结剂对Ti6Al4V与瓷粘结的影响。研究了硼酸盐粘结剂的热性能，如玻璃化转变温度（Tg）和结晶峰温度（Tp），以确定烧结工艺。并通过热膨胀系数（CTE）评估瓷与Ti6Al4V的匹配效果。通过三点弯曲试验分析粘结强度。研究了烧结后硼酸盐粘结剂表面的微观形貌、钛-硼酸盐粘结剂-瓷的界面以及瓷断裂后的断裂模式，以评估硼酸盐粘结剂对Ti6Al4V陶瓷的影响。随着Na2O和Al2O3的添加，瓷断裂后Ti6Al4V表面的瓷残留量增加，并且在粘结剂组成为75.70B2O3-5.92La2O3-11.84SrO-4.67Na2O-1.87Al2O3时获得了最大粘结强度（49.45MPa）。这些结果表明，硼酸盐粘结剂是提高Ti6Al4V与陶瓷粘结强度的有效方法。并且Na2O和Al2O3的添加增强了这种效果。
