A facile sol-gel synthesis of low-fusing titanium opaque porcelain using borate-silicate system and its bioactivity

作者：Xue, Beijing; Wang, Wenhao; Guo, Litong^*; Ren, Xuanru^*; Tao, Xueyu^*; Qiang, Yinghuai

来源：Journal of the Mechanical Behavior of Biomedical Materials, 2018, 83: 79-83.

DOI：10.1016/j.jmbbm.2018.04.005

• Dental material
• Titanium
• Opaque porcelain
• Bioactivity
• Sol-gel

The titanium opaque porcelain was synthesized through sol-gel using borate-silicate system. The porcelain was characterized by DSC-TG, X-ray diffraction, N2 adsorption-desorption isotherms and scanning electron microscope tests. The results of DSC showed that the nitrates could be decomposed completely when the bioglass xerogel precursor was heat-treated at 760 degrees C. The XRD results showed that the Na2Ca3Si6O16 was the major phase of the opaque porcelain. The synthesized opaque porcelain powders had an average particle size of about 5-25 mu m with nanopores of around 50-70 nm on the surface. The BET average surface area of the porcelain was 12.67 m(2)/g, while the average pore diameters for adsorption and desorption were 9.73 and 10.16 nm, respectively. The flexure strength significantly increased from 47.4 MPa to 116.2 MPa with the sintering temperature increasing from 575 degrees C to 600 degrees C. The XRD, FTIR and EDS results proved that hydroxyapatite had formed on the porcelain surface after incubation in simulated body fluid.

• 出版日期2018-7
• 单位中国矿业大学（北京）