Fracture Characteristics of NiCr/ZrO2 Functionally Graded Material by Gas Burner Thermal Shock

被引：0
|
作者：
Song, Jun Hee [1 ]
机构：
[1] Chonbuk Natl Univ, Engn Res Inst, Res Ctr Ind Technol, Jeonju 561756, South Korea
来源：
JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2006年 / 43卷 / 04期
关键词：
Functionally graded materials; Thermal shock; Zirconia; Acoustic emission;
D O I：
10.4191/kcers.2006.43.4.247
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Joining Yittria Stabilized Zirconia (YSZ) to NiCr metal was fabricated using YSZ/NiCr Functionally Graded Materials (FGM) interlayer by hot pressing process. Microscopic observations demonstrate that the composition and microstructure of YSZ/NiCr FGM distribute gradually in stepwise way, eliminating the macroscopic ceramic/metal interface such as that in traditional ceramic/metal joint. The thermal characteristics of this YSZ/FGM/NiCr joint were studied by thermal shock testing and therml barrier testing. Thermal shock test was conducted by gas burner rig. Acoustic Emission (AE) monitoring was performed to analyze the microfracture behavior during the thermal shock test. It could be confirmed that FGM was the excellent performance of thermal shock/barrier resistance at above 1000 degrees C.
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页码：247 / 252
页数：6
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