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An experimental study on the strain-rate-dependent compressive and tensile response of an alumina ceramic
Download2022-10-01
Ji, Min, Li, Haoyang, Zheng, Jie, Yang, Shuo, Zaiemyekeh, Zahra, Hogan, James D.
This research article studied the strain-rate-dependent mechanical response of a CeramTec Alotec 98% alumina ceramic under uniaxial compression and indirect tension loadings. Mechanical testing was carried out using a load frame for quasi-static strain rates and a split-Hopkinson Pressure Bar...
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2019-03-18
Li, H.Y., Motamedi, P., Hogan, James D.
This study investigates the micro/nanostructural features and mechanical responses of a novel TiAl/Ti3Al/Al2O3 cermet fabricated by self-propagation high-temperature synthesis. The microscopic diagnosis was used to examine the material composition, phase distribution, and elemental concentration...
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Fall 2019
The most common detrimental processes that lead to reduction in durability in reinforced concrete elements are shrinkage, sulphate attack and chloride attack. Shrinkage is a dimensional instability chiefly caused by a loss of moisture in the hydrating cement paste. Soluble sulphate ions take part...
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Micro-hardness and strain-rate-dependent compressive response of an ultra-light-weight Mg-Li-Al alloy
Download2022-01-15
Li, Haoyang, Shao, Chenwei, Rojas, David Funes, Ponga, Mauricio, Hogan, James D.
A study on the microstructure and composition, micro-hardness and strain-rate-dependent compressive behaviors, and the associated failure mechanisms of an ultra-light-weight Mg-Li-Al alloy were conducted. X-ray diffraction and X-ray photoelectron spectroscopy showed a multi-phase material with...
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On the Rate-dependency of Mechanical Properties and Failure Mechanisms of a (γ + α2) - TiAl/Ti3Al-Al2O3 Cermet
Download2020-07-01
Li, Haoyang, Motamedi, Pouyan, Hogan, James D.
This study investigated the rate-dependent mechanical properties and failure of a self-propagating high-temperature synthesized TiAl/Ti3Al-Al2O3 cermet using mechanical testing and advanced microscopy. Quasi-static and dynamic uniaxial compression tests coupled with high-speed imaging and digital...
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The effects of defects on the uniaxial compressive strength and failure of an advanced ceramic
Download2016
Ramesh, K., Farbaniec, Lukasz, Hogan, James D., Sano, Tomoko, Shaeffer, Matthew
This study investigates the effects of the processing-induced defect population on the dynamic compressive strength and failure of a hot-pressed boron carbide. Quantitative microscopic analysis was used to determine the distributions of three types of processing-induced inhomogeneities: aluminum...