Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"superhard materials"”.
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Computational Alchemy: The Rational Design of New Superhard Materials
… to help identify and direct the synthesis of new superhard compounds. An improved figure of merit for hardness is identified and used to show that carbon nitrides are not likely to be harder than diamond.
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The electronic and mechanical properties of the XYB14 complex borides studied by first-principles methods
… been invested in searching and designing new superhard materials for applications as abrasives, polishing and cutting tools, wear-resistant and protective coatings. The best-known superhard material to date is diamond. However, its industrial applications are greatly limited by its high cost …
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Impact of morphology and confinement effects on the properties of aligned nanofiber architectures
… of many application-specific nanostructured materials studies. However, various NF morphology and proximity effects can lead to > 1000x reductions in the performance of NF-based material architectures, such as bulk materials and structures comprised of scalable aligned NF arrays. The physical …
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Accelerating Material Inverse Design in High-Dimensional Continuous Spaces with Autonomous Machine Learning Ecosystems
Modeling and designing materials at the nanoscale is essential for advancing new technologies in crucial areas such as energy, electronics, and catalysis. By gaining control over structure at the atomic level, we can now pursue inverse design, where the goal is to start from a desired property and …
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Synthesis and investigation of boron phases at high pressures and temperatures
… is ~60 GPa which places ε-boron in the family of superhard materials. We have demonstrated that δ-boron and ε-boron are metastable polymorphs because (a) they were found only together with other stable boron phases (α-, β-, or γ-B), and (b) upon heating at high pressure, both δ-B and ε-B transform …
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Single-crystal X-ray diffraction at extreme conditions in mineral physics and material sciences
… provided by high-pressure crystallography in materials- and geo-sciences on the examples of studies of transition metal borides, a metal-doped boron phase, silicates, and oxides. Particularly, we solved and refined crystal structures of Co5B16, MnB4, Al-doped β-boron, knorringite, and …