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硬化的纳米复合材料:老化对微观结构,光学和机械性能的影响

Mariana M T Piza¹, Edmara T P Bergamo¹, Tiago M B Campos²

¹Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, Bauru, SP, Brazil.

Dental materials : official publication of the Academy of Dental Materials

|September 29, 2023

概括

这项研究处理了一种化硬化 (ATZ) 纳米复合材料,发现它在老化后具有高不透明度和强度. 然而,该材料显示易受热水性降解,需要进一步的低温研究.

科学领域:

材料科学材料科学材料科学
纳米复合材料的使用方法
陶制品在陶方面.

背景情况:

硬化 (ATZ) 是一个关键的陶纳米复合材料.
了解其老化后的特性对于应用至关重要.

研究的目的:

为了处理和描述ATZ纳米复合材料.
评估它在人工老化之前和之后的性能.

主要方法:

在ATZ粉末的单轴压缩和烧结.
通过自闭槽和热水反应堆进行人工老化.
使用XRD,SEM,拉曼光谱和机械/光学测试进行表征.

主要成果:

老龄化增加了单临床基含量和残余压力.
保持了高的不透明度 (CR:0.99) 和掩蔽能力 (TP:0.26).
在老化后,特征强度显著增加,特别是在热水条件下.

结论:

亚特兹纳米复合材料表现出理想的光学和机械性能.
衰老通过压力压力增强强度,但可能导致热水性降解.
需要对低温降解动力学的进一步研究.

关键词:

衰老的衰老衰老的衰老陶复合材料陶复合材料机械性质机械性质的是的元素之一.

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