Effect of grain size, notch width, and testing temperature on the fracture toughness of Ti3Si(Al)C-2 and Ti3AlC2 using the chevron-notched beam (CNB) method
文献类型：期刊论文
| 作者 | D. T. Wan ; F. L. Meng ; Y. C. Zhou ; Y. W. Bao ; J. X. Chen |
| 刊名 | Journal of the European Ceramic Society
 |
| 出版日期 | 2008 |
| 卷号 | 28期号:3页码:663-669 |
| ISSN号 | 0955-2219 |
| 关键词 | fracture toughness Ti3Si(Al)C-2 Ti3AlC2 CNB method testing fatigue-crack growth mechanical-properties elevated-temperatures oxidation resistance damage tolerance silicon-nitride bulk ceramics ti3sic2 composites specimens |
| 中文摘要 | In this work, the effects of grain size, notch width, and testing temperature on the fracture toughness of two typical MAX phases, Ti3Si(Al)C-2 and Ti3AlC2, were investigated using the chevron-notched beam (CNB) method. The high-fracture toughness in the range of 6.43-10.19 MPa m(1/2) was determined. The critical notch width is about 250 mu m for the valid fracture toughness measurements of Ti3Si(Al)C-2 and Ti3AlC2. For a fixed notch width and testing temperature, the fracture toughness of coarse-grained (CG) samples is higher than that of fine-grained (FG) samples, and the toughness of Ti3AlC2 is higher than that of Ti3Si(Al)C-2. Furthermore, the high-temperature fracture toughness of Ti3Si(Al)C-2 and Ti3AlC2 samples show a similar trend that the measured toughness is nearly a constant when the testing temperature is before the ductile-brittle transition temperature (DBTT) and then it declines fast over DBTT. The mechanism for the high-fracture toughness of Ti3Si(Al)C-2 and Ti3AlC2 is also discussed. (c) 2007 Published by Elsevier Ltd. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33111]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | D. T. Wan,F. L. Meng,Y. C. Zhou,et al. Effect of grain size, notch width, and testing temperature on the fracture toughness of Ti3Si(Al)C-2 and Ti3AlC2 using the chevron-notched beam (CNB) method[J]. Journal of the European Ceramic Society,2008,28(3):663-669. |
| APA | D. T. Wan,F. L. Meng,Y. C. Zhou,Y. W. Bao,&J. X. Chen.(2008).Effect of grain size, notch width, and testing temperature on the fracture toughness of Ti3Si(Al)C-2 and Ti3AlC2 using the chevron-notched beam (CNB) method.Journal of the European Ceramic Society,28(3),663-669. |
| MLA | D. T. Wan,et al."Effect of grain size, notch width, and testing temperature on the fracture toughness of Ti3Si(Al)C-2 and Ti3AlC2 using the chevron-notched beam (CNB) method".Journal of the European Ceramic Society 28.3(2008):663-669. |
入库方式： OAI收割
来源：金属研究所
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