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Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
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陶矩阵复合材料在氧化乙烯火下循环废弃行为

Hailang Ge1,2, Xianqing Chen2, Guangyu Li1

  • 1College of Mechanical and Electrical Engineering, Suqian University, Suqian 223800, China.

Materials (Basel, Switzerland)
|September 28, 2024
PubMed
概括
此摘要是机器生成的。

碳化 (SiC/SiC) 复合材料的循环废除显示了较低的质量损失,但比单次废除更高的线性废除率. 表面氧化物和二氧化颗粒抵御剥离,尽管热冲击会导致裂纹.

关键词:
在SiC/SiCC中使用.剥离行为是剥离行为.循环的剥离是循环的剥离.在高温除过程中进行除.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 陶复合材料 陶复合材料

背景情况:

  • 碳化 (SiC/SiC) 复合材料是用于高温应用的先进材料.
  • 了解除行为对于它们在极端环境中的部署至关重要.

研究的目的:

  • 调查和比较单一和循环废弃条件下的平面编织SiC/SiC复合材料的废弃性.
  • 分析微观结构的变化,并确定负责材料降解和抗性的机制.

主要方法:

  • 在平面编织的SiC/SiC复合材料上使用氧化乙烯火进行了废弃试验.
  • 采用宏观和微观结构特征技术来检查废弃的表面和内部结构.

主要成果:

  • 循环切除导致较低的质量切除率,但与单次切除相比,线性切除率更高.
  • 表面分析显示,在剥离中心形成了富含氧化物的白色氧化物.
  • 中部地区的纤维显示层次的剥离,具有尖的形态和附着的二氧化颗粒.
  • 化氧化物和二氧化颗粒有助于增强废弃性.

结论:

  • 保护性氧化物层的形成和化颗粒的存在减轻了剥离损伤.
  • 在周期性除过程中引起的热冲击会导致SiC/SiC复合材料的裂.
  • 这些发现为应用SiC/SiC复合材料在具有复杂热冲击和剥离的环境中提供了洞察力.