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Now showing items 21-25 of 25
Ductility in crystalline boron subphosphide (B12P2) for large strain indentation
(American Chemical Society, 2017)
Our studies of brittle fracture in B4C showed that shear-induced cracking of the (B11C) icosahedra leading to amorphous B4C regions induced cavitation and failure. This suggested that to obtain hard boron-rich phases that ...
Determining the Quality Factor of Dielectric Ceramic Mixtures with Dielectric Constants in the Microwave Frequency Range
(Nature Research, 2017)
Microwave dielectric ceramic materials are extensively utilized in microwave applications because of their high dielectric constants and quality factors. These applications also require ceramics of zero temperature ...
Mechanism and kinetics of the electrocatalytic reaction responsible for the high cost of hydrogen fuel cells
(Royal Society of Chemistry, 2017)
The sluggish oxygen reduction reaction (ORR) is a major impediment to the economic use of hydrogen fuel cells in transportation. In this work, we report the full ORR reaction mechanism for Pt(111) based on Quantum Mechanics ...
Erratum: New Ground-State Crystal Structure of Elemental Boron [Phys. Rev. Lett. 117, 085501 (2016)]
(American Physical Society, 2017)
Our Letter reported both experimental and computation evidence for the new τ phase of elemental boron, which is closely related to the long known β phase. Our experiments clearly established that both phases are present ...
Nanotwins soften boron-rich boron carbide (B13C2)
(AIP Publishing, 2017)
Extensive studies of metals and alloys have observed that nanotwins lead to strengthening, but the role of nanotwins in ceramics is not well established. We compare here the shear strength and the deformation mechanism of ...