State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, PR China.
State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, PR China.
Mater Sci Eng C Mater Biol Appl. 2015 Aug;53:23-8. doi: 10.1016/j.msec.2015.04.017. Epub 2015 Apr 14.
Oxidation of diamond during the manufacturing of vitrified dental grinding tools would reduce the strength and sharpness of tools. Zinc oxide (ZnO) coating was deposited on diamond particles by urea precipitation method to protect diamond in borosilicate glass. The FESEM results showed that the ZnO coating was formed by plate-shaped particles. According to the TG results, the onset oxidation temperature of the ZnO-coated diamond was about 70 °C higher than the pristine diamond. The EDS results showed that ZnO diffused into the borosilicate glass during sintering. As the result, the bending strength of the composites containing ZnO-coated diamond was increased by 24% compared to that of the composites containing pristine diamond.
在玻璃态牙科研磨工具的制造过程中，金刚石的氧化会降低工具的强度和锋利度。氧化锌（ZnO）涂层通过尿素沉淀法沉积在金刚石颗粒上，以保护金刚石在硼硅酸盐玻璃中。FESEM 结果表明，ZnO 涂层由板状颗粒形成。根据 TG 结果，ZnO 涂覆金刚石的起始氧化温度比原始金刚石高约 70°C。EDS 结果表明，ZnO 在烧结过程中扩散到硼硅酸盐玻璃中。结果，与含有原始金刚石的复合材料相比，含有 ZnO 涂覆金刚石的复合材料的抗弯强度提高了 24%。
