A5083721928- Metal and Thin Film Mechanics
- Microstructure and mechanical properties
- Force Microscopy Techniques and Applications
- Advanced Surface Polishing Techniques
- Diamond and Carbon-based Materials Research
- Integrated Circuits and Semiconductor Failure Analysis
- Advanced materials and composites
- High Entropy Alloys Studies
- Ion-surface interactions and analysis
- Additive Manufacturing Materials and Processes
- Microstructure and Mechanical Properties of Steels
- Advanced Materials Characterization Techniques
- Advanced ceramic materials synthesis
- Advanced Electron Microscopy Techniques and Applications
- Fusion materials and technologies
- High-Temperature Coating Behaviors
- Non-Destructive Testing Techniques
- Silicon and Solar Cell Technologies
- Metallic Glasses and Amorphous Alloys
- Machine Learning in Materials Science
- Calcium Carbonate Crystallization and Inhibition
- Aluminum Alloys Composites Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Hydrogen Storage and Materials
- Intermetallics and Advanced Alloy Properties
Bruker (United States)
2017-2024
Bruker (Switzerland)
2024
Sandia National Laboratories California
2022
Hysitron (United States)
2016-2017
University of Minnesota
2013-2016
Twin Cities Orthopedics
2016
Montanuniversität Leoben
2014
A fibrous herringbone-modified helicoidal architecture is identified within the exocuticle of an impact-resistant crustacean appendage. This previously unreported composite microstructure, which features highly textured apatite mineral templated by alpha-chitin matrix, provides enhanced stress redistribution and energy absorption over traditional design under compressive loading. Nanoscale toughening mechanisms are also using high-load nanoindentation in situ transmission electron microscopy...
Standard nanoindentation tests are “high throughput” compared to nearly all other mechanical tests, such as tension or compression. However, the typical rates of tens per hour can be significantly improved. These higher testing enable otherwise impractical studies requiring several thousands indents, high-resolution property mapping and detailed statistical studies. care must taken avoid systematic errors in measurement, including choosing indentation depth/spacing overlap plastic zones,...
In this letter, we demonstrated stable nanoscale fracture in single-crystal silicon using an in-situ wedge-loaded double cantilever beam (DCB) specimen. The toughness KIC was calculated directly from instrumented measurement of force and displacement via finite element analysis with frictional corrections. Measurements on multiple test specimens were used to show = 0.72 ± 0.07 MPa m1/2 {111} planes observe the crack-growth resistance curve <500 nm increments. exquisite stability crack...
Today, the Mohs scale is used profusely throughout educational systems without any persuasive understanding of fundamental principles. Why one mineral has a scratch hardness over next culminating in 1 (chalk) to 10 (diamond) no atomistic or structure‐sensitive basis that explains this outcome. With modern computationally based and multiscale models, there increasing promise defining pressure rate‐dependent parameters will allow scale. This study principally addresses combined fracture...
Materials are needed that can tolerate increasingly harsh environments, especially ones retain high strength at extreme temperatures. Higher melting temperature alloys, like those consisting primarily of refractory elements, greatly increase the efficiency turbomachinery used in grid electricity production worldwide. Existing including Ni- and Co-based superalloys, components turbine blades, bearings, seals, remain a performance limiting factor due to their propensity, despite extensive...
With rapidly increasing numbers of studies new and exotic material uses for perovskites quasicrystals, these demand newer instrumentation simulation developments to resolve the revealed complexities. One such set observational mechanics at nanoscale is presented here somewhat simpler systems. The expectation that approaches will assist those materials scientists physicists needing verify atomistic potentials appropriate nanomechanical understanding increasingly complex solids. five following...
High throughput nanoindentation techniques can provide rapid materials screening and property mapping span millimeter length scales up to 106 data points. To facilitate sorting of these into similar groups, a necessary task for establishing structure–property relationships, use an unsupervised machine learning analysis called clustering has grown in popularity. Here, method is proposed tested that evaluates the uncertainty associated with various algorithms example high entropy alloy set...
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Coated nuclear fuel particles, most commonly tri-structural isotropic (TRISO), are intended for use in advanced high temperature reactors. It is vital to understand the mechanical properties of each coating layer accurately predict performance these particles and how might change at stage their lifecycle. This paper reports results in-situ nanoindentation, with an emphasis on structural SiC layer, along microcantilever testing critical SiC-IPyC interface. At 1000 °C hardness ~75% lower than...