Detection of Crack Propagation in Alumina Using SrAl_2O_4:(Eu, Dy) Luminescent Paint

机译：使用SrAl_2O_4：（Eu，Dy）发光涂料检测氧化铝中的裂纹扩展

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Using a mechano-luminescent (ML) paint enabling the visualization of fast propagating crack as well as bridging stress distribution under a conventional loading condition, this paper presents a catastrophic fracture mechanism in association with the crack wake bridging in alumina ceramics. The bridging stress distribution evolves in its magnitude and shape as crack advances and keeps changing as load changes even for a stationary crack. An instantaneous stress intensity factor skyrocketed extraordinarily up to 120 Mpa m~(1/2), which is due to the well-known effect of specimen dimension and the accurate location of real crack tip by the ML technique.

机译：使用机械发光（ML）涂料能够可视化快速传播的裂纹以及在传统载荷条件下的桥接应力分布，本文提出了一种灾难性的断裂机理，与氧化铝陶瓷中的裂纹唤醒桥接相关。桥的应力分布随着裂纹的发展而在大小和形状上不断变化，并且即使在固定的裂纹下也随着载荷的变化而不断变化。瞬时应力强度因子突然飙升至120 Mpa m〜（1/2），这是由于ML技术导致的试样尺寸众所周知的影响以及实际裂纹尖端的精确位置所致。

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来源
《International Conference on Proceeding amp; Manufacturing of Advanced Materials; 20060704-08; Vancouver(CA)》|2006年|P.2264-2268|共5页
会议地点 Vancouver(CA)
作者
J. S. Kim; K.-S. Sohn; Y.-N. Kwon; G. S. Ban; K. H. Lee;
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作者单位

Dept. of Adv. Mat. Eng., Sangju National University 742-711 Sangju, Korea;

Dept. of Mat. Sci. Met. Eng., Sunchon National University 540-742 Sunchon, Korea;

Mat'ls Proc. Dept., Korea Inst. Of Mach. And Mat. 641-010 Changwon, Korea;

Dept. of Automotive Eng;

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原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
crack propagation; alumina; SrAl_2O_4(Eu, Dy); mechano-luminescent paint;

机译：裂纹扩展;氧化铝; SrAl_2O_4（Eu，Dy）;机械发光涂料;

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专利

1. Corrigendum to “A life-time reproducible mechano-luminescent paint for the visualization of crack propagation mechanisms in concrete structures (Original title was A highly durable and an effective SrAl_2O_4:Eu~(2+),Dy~(3+) mechanoluminescent paint)” [Int. J. Fatigue 101 (2017) 75-79] [J] . Timilsina Suman, Bashnet Ramesh, Kim Seonghoon, International Journal of Fatigue . 2017,第octa期

机译：“用于可视化混凝土结构中裂纹扩展机理的可终身重现的机械发光涂料的更正”（原标题是高度耐用且有效的SrAl_2O_4：Eu〜（2 +），Dy〜（3+）机械发光涂料） ” [Int。 J.疲劳101（2017）75-79]
2. A Study on the Mechno-luminescent SrAl_2O_4:Eu,Dy Thin Film Produced by Pulsed Laser Deposition for Stress or Crack Indicating Application [J] . Duk Hymn Park, Kee Sun Sohn, Ji Sik Kim Journal of Korean Institute of Metal and Materials . 2004,第11期

机译：应力或裂纹指示应用的脉冲激光沉积制备的机械发光SrAl_2O_4：Eu，Dy薄膜的研究
3. Mechanoluminescent SrAl_2O_4:Eu,Dy phosphor for use in visualization of quasidynamic crack propagation [J] . Ji Sik Kim, Yong-Nam Kwon, Namsoo Shin, Applied Physics Letters . 2007,第24期

机译：机械发光SrAl_2O_4：Eu，Dy荧光粉，用于准动态裂纹扩展的可视化
4. Detection of Crack Propagation in Alumina Using SrAl_2O_4:(Eu,Dy) Luminescent Paint [C] . J. S. Kim, K.-S. Sohn, Y.-N. Kwon, International Conference on Processing amp; Manufacturing of Advanced Materials; 20060704-08; Vancouver(CA) . 2006

机译：使用SrAl_2O_4：（Eu，Dy）发光涂料检测氧化铝中的裂纹扩展
5. Microwave Detection of Surface Breaking Cracks in Metallic Structures under Heavy Corrosion and Paint [D] . Gallion, John Robert. 2019

机译：微波检测重腐蚀和重涂下金属结构的表面破裂裂纹
6. Crack Propagation in As-Extruded and Heat-Treated Mg-Dy-Nd-Zn-Zr Alloy Explained by the Effect of LPSO Structures and Their Micro- and Nanohardness [O] . Petra Maier, Benjamin Clausius, Asta Richter, 2021

机译：通过LPSO结构及其微观和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米和纳米
7. DEVELOPMENT OF FATIGUE CRACK DETECTION SYSTEM BASED ON IMAGE DIAGNOSIS OF PAINT CRACK PATTERN [O] . Takuyo KONISHI, Yutaro KOYA, Masashi KAJIHARA 2016

机译：基于图像诊断涂料裂纹图案的疲劳裂纹检测系统的发展
8. Characterization of microstructure and crack propagation in alumina using orientation imaging microscopy (OIM). December 1996 [R] . 1996

机译：使用取向成像显微镜（OIm）表征氧化铝的微观结构和裂纹扩展。1996年12月

Detection of Crack Propagation in Alumina Using SrAl_2O_4:(Eu, Dy) Luminescent Paint

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