不同处理方式对热压铸造增强陶瓷的双轴弯曲强度影响的研究

目的研究不同处理方式对白榴石增强陶瓷的双轴弯曲强度的影响。方法试件的蜡型制作采用将融化的铸造蜡灌注于机械加工模具内,制成厚度和直径一致的蜡型。厚度为2.0 mm、直径为18 mm圆片,共40个。实验分组按照不同处理方式即:打磨和抛光、上釉和离子交换组。以不做打磨、上釉和离子交换的为对照组。根据ASTM标准F394-78.1991(美国材料实验协会)测试试件的双轴弯曲强度。经one-way ANOVA统计分析各实验组。同时辅以扫描电镜、X线衍射仪和能谱分析观察其结构的变化。结果不同处理方法与对照组比较双轴弯曲强度,差异有显著性(P<0.01)。不同处理方法组内的比较双轴弯曲强度,差异有显著(P<0.01)。结论热压铸陶瓷的不同处理均可以增加陶瓷的双轴弯曲强度,而以离子交换处理的影响最大。

Effects of different treatment methods on biaxial flexural strength of hot pressable ceramic

Objective To study the effects of different treatment methods on the biaxial flexural strength of hot pressable ceramic.Methods 40 disks of Cerinate ceramic specimens(shade 2),18mm in diameter and 2.0 mm thick,were prepared.The specimens were manufactured according to the company's recommendations.10 disks were used as controls.The remaining disks were divided into 3 groups of 10 disks each by polishing,glazing and ion-exchange of different treatment methods.The biaxial flexural strength was evaluated by a ...