揭示了微镜架构和Y/Bi替代Bi-2212工程陶的机械性能之间的关系
Tolgahan Yilmaz1, Gülnur Kurtul2, Asaf Tolga Ülgen3
1Department of Mechanical Engineering, Bolu Abant Izzet Baysal University, Bolu, Turkey.
Microscopy research and technique
|August 30, 2024
概括
在-2212酸盐中取代伊特可以增强结晶性和机械性能. 在x=0.01的最佳伊兴奋剂改善了高级陶应用的表面形态,粒度合和耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 陶工程 陶工程 陶工程
背景情况:
- 石-2212酸盐是复杂的氧化物,在先进材料中具有潜在的应用.
- 了解杂质替代的影响对于优化材料性能至关重要.
- 伊 (Y) 兴奋剂被探索为一种修改Bi-2212.2特性的方法.
研究的目的:
- 为了研究伊 (Y) 替代 (Bi) 对Bi2.0-xYxSr2.0Ca1.1Cu2.0Oy (Bi-2212) 杯的结晶性,表面形态和机械性能的影响.
- 为了建立杂质替代机制和结晶过程之间的关系.
- 为了确定最佳的伊度,以提高材料性能.
主要方法:
- 使用陶制备方法合成了具有不同度 (0.00 ≤ x ≤ 0.12) 的Bi-2212样本.
- 扫描电子显微镜 (SEM) 用于分析表面形态和微观结构.
- 评估了机械性能,包括硬度和强度.
主要成果:
- 实验结果的显著改善是在x = 0.01.01的最佳伊摩尔比率下观察到的.
- SEM分析显示,最佳的Y兴奋剂促进了精确定义,堆叠层的形成,增强了谷物合和更密集,更光滑的表面.
- 机械测试显示,硬度,强度和耐久性显著提高,归因于诱导的压力应力和改善的粘合.
结论:
- 在Bi-2212中最佳的伊兴奋剂 (x=0.01) 显著提高了结晶性,表面形态和机械性能.
- 增强的性能与改进的结晶机制,更好的谷物相互作用和诱导的压力应力有关.
- 优化的Y-doped Bi-2212由于改进的使用寿命和机械弹性,具有在工程陶中扩大使用的潜力.
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