期刊
MRS COMMUNICATIONS
卷 12, 期 2, 页码 279-282出版社
SPRINGER HEIDELBERG
DOI: 10.1557/s43579-022-00176-7
关键词
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资金
- Vehicle Technologies Office of the U.S. Department of Energy Battery Materials Research (BMR) Program [DD-EE0008863]
- US Department of Energy Office of Electricity Energy Storage Program
- University of Kentucky
- Sandia National Laboratories
Measuring the crack-length generated from indentation experiments is a common method to probe the fracture toughness of brittle materials in materials research. However, when the cracks are too small to be accurately measured, an energy-based approach has been proposed as an alternative method.
Probing the fracture toughness of brittle materials by measuring the crack-length generated from indentation experiments is often practiced in many areas of materials research. However, when the cracks are too small to be measured accurately, an energy-based approach has recently been proposed by several researchers. In this letter, this approach is presented and compared with the well-known crack-length method on six different materials. We found that the energy-based method and crack-length method yield significantly different results for all materials but converge if the energy method is modified with a correction factor.
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