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目的:探讨烧结温度对钛实验粘结瓷的烧结性能和力学性能的影响,以确定较为成熟的制备工艺。方法:钛实验粘结瓷粉在100MPa冷等静压成型,分别在750℃、800℃、850℃烧结,对比测定钛实验粘结瓷体的体积密度、表观气孔率、真密度、总气孔率、三点弯曲强度、断裂韧性和维氏硬度。结果:钛试验粘结瓷的抗弯强度、维氏硬度在800℃时达到最大;断裂韧性在850℃时最高。800℃时钛试验粘结瓷的真密度和表观密度均达到最大,表观气孔率和总气孔率在800℃时降至最小。结论:综合各种因素,800℃为钛实验粘结瓷粉最佳烧结温度。
Objective: To investigate the effect of sintering temperature on the sintering and mechanical properties of titanium experimental bonded ceramic to determine the more mature preparation process. Methods: Titanium experimentally bonded porcelain powder was cold isostatically pressed at 100MPa and sintered at 750 ℃, 800 ℃ and 850 ℃, respectively. The bulk density, apparent porosity, true density, total porosity Rate, three-point bending strength, fracture toughness and Vickers hardness. Results: The flexural strength and Vickers hardness of titanium bonded cements reached the maximum at 800 ℃. The fracture toughness was the highest at 850 ℃. At 800 ℃, the true density and apparent density of the titanium bonded ceramics reached the maximum, while the apparent porosity and total porosity decreased to the minimum at 800 ℃. Conclusion: Based on various factors, the optimal sintering temperature of titanium experimental bonding porcelain powder is 800 ℃.