Search Results - "Harmer, P."

The Phase Behavior of Interfaces by Harmer, Martin P.

“…Grain boundaries between crystals, which can control materials properties, can interconvert between well-defined equilibrium structures. Common metal or…”
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Materials informatics for the screening of multi-principal elements and high-entropy alloys by Rickman, J. M., Chan, H. M., Harmer, M. P., Smeltzer, J. A., Marvel, C. J., Roy, A., Balasubramanian, G.

“…The field of multi-principal element or (single-phase) high-entropy (HE) alloys has recently seen exponential growth as these systems represent a paradigm…”
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Segregation-induced ordered superstructures at general grain boundaries in a nickel-bismuth alloy by Yu, Zhiyang, Cantwell, Patrick R., Gao, Qin, Yin, Denise, Zhang, Yuanyao, Zhou, Naixie, Rohrer, Gregory S., Widom, Michael, Luo, Jian, Harmer, Martin P.

“…The properties of materials change, sometimes catastrophically, as alloying elements and impurities accumulate preferentially at grain boundaries. Studies of…”
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The Role of a Bilayer Interfacial Phase on Liquid Metal Embrittlement by Luo, Jian, Cheng, Huikai, Asl, Kaveh Meshinchi, Kiely, Christopher J., Harmer, Martin P.

“…Intrinsically ductile metals are prone to catastrophic failure when exposed to certain liquid metals, but the atomic-level mechanism for this effect is not…”
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Interfacial Kinetic Engineering: How Far Have We Come Since Kingery's Inaugural Sosman Address? by Harmer, Martin P.

“…The manipulation of the rate of atomic transport along and across interfaces (most notably grain boundaries) remains a central theme in the control of the…”
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Complexion: A new concept for kinetic engineering in materials science by Dillon, Shen J., Tang, Ming, Carter, W. Craig, Harmer, Martin P.

“…Interfaces and the movement of atoms within an interface play a crucial role in determining the processing and properties of virtually all materials. However,…”
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Review of grain boundary complexion engineering: Know your boundaries by Krause, Amanda R., Cantwell, Patrick R., Marvel, Christopher J., Compson, Charles, Rickman, Jeffrey M., Harmer, Martin P.

“…Abstract Grain boundary structure‐property relationships influence bulk performance and, therefore, are an important criterion in materials design. Materials…”
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Anabolic-androgenic steroid use among young male and female athletes: is the game to blame? by Harmer, P A

“…The use of anabolic-androgenic steroids (AAS) by young athletes has been a primary concern of sports governing bodies because of the implications for unfair…”
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MIC-Drop: A platform for large-scale in vivo CRISPR screens by Parvez, Saba, Herdman, Chelsea, Beerens, Manu, Chakraborti, Korak, Harmer, Zachary P, Yeh, Jing-Ruey J, MacRae, Calum A, Yost, H Joseph, Peterson, Randall T

“…CRISPR-Cas9 can be scaled up for large-scale screens in cultured cells, but CRISPR screens in animals have been challenging because generating, validating, and…”
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Accessing chemical diversity from the uncultivated symbionts of small marine animals by Smith, Thomas E, Pond, Christopher D, Pierce, Elizabeth, Harmer, Zachary P, Kwan, Jason, Zachariah, Malcolm M, Harper, Mary Kay, Wyche, Thomas P, Matainaho, Teatulohi K, Bugni, Tim S, Barrows, Louis R, Ireland, Chris M, Schmidt, Eric W

“…A combination of spectroscopy, metagenomics, and synthetic biology enables the characterization of the antiviral divamides, a class of lanthipeptide natural…”
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The critical influence of carbon on the thermal stability of nanocrystalline Ni–W alloys by Marvel, Christopher J., Cantwell, Patrick R., Harmer, Martin P.

“…The carbide Ni6W6C has been identified in electroplated and sputtered nanocrystalline Ni–23at.% W annealed at 700°C. This carbide is unexpected and forms due…”
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The influence of oxygen contamination on the thermal stability and hardness of nanocrystalline Ni–W alloys by Marvel, Christopher J., Yin, Denise, Cantwell, Patrick R., Harmer, Martin P.

“…Nanocrystalline Ni–W alloys are reported in the literature to be stabilized against high temperature grain growth by W-segregation at the grain boundaries…”
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Lustro: High-Throughput Optogenetic Experiments Enabled by Automation and a Yeast Optogenetic Toolkit by Harmer, Zachary P., McClean, Megan N.

“…Optogenetic systems use genetically encoded light-sensitive proteins to control cellular processes. This provides the potential to orthogonally control cells…”
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Tai Chi and Fall Reductions in Older Adults: A Randomized Controlled Trial by Li, Fuzhong, Harmer, Peter, Fisher, K. John, McAuley, Edward, Chaumeton, Nigel, Eckstrom, Elizabeth, Wilson, Nicole L.

“…Background. The authors' objective was to evaluate the efficacy of a 6-month Tai Chi intervention for decreasing the number of falls and the risk for falling…”
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The Relative Energies of Normally and Abnormally Growing Grain Boundaries in Alumina Displaying Different Complexions by Dillon, Shen J., Harmer, Martin P., Rohrer, Gregory S.

“…Chemically induced grain‐boundary structural transitions are well documented in a number of ceramic systems. It has been hypothesized that transitions between…”
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Intentional and unintentional elemental segregation to grain boundaries in a Ni-rich nanocrystalline alloy by Marvel, C. J., Hornbuckle, B. C., Darling, K. A., Harmer, M. P.

“…Grain boundary segregation is an important phenomenon for nanocrystalline materials as it influences thermal stability and mechanical properties. While several…”
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Achieving ultra hard refractory multi-principal element alloys via mechanical alloying by Smeltzer, Joshua A., Marvel, Christopher J., Hornbuckle, B. Chad, Roberts, Anthony J., Marsico, Joseph M., Giri, Anit K., Darling, Kristopher A., Rickman, Jeffrey M., Chan, Helen M., Harmer, Martin P.

“…Mechanical alloying was employed to produce a nanostructured Mo25Nb25Ta25W25 multi-principal element alloy (MPEA) with enhanced mechanical properties. Overall,…”
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Misorientation dependence of Al2O3 grain boundary thermal resistance by Tai, Kaiping, Lawrence, Abigail, Harmer, Martin P., Dillon, Shen J.

“…The room-temperature thermal resistance of model low-angle (0001) twist bicrystal Al2O3 grain boundaries was measured as a function of misorientation angle…”
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Multiple grain boundary transitions in ceramics: A case study of alumina by Dillon, Shen J., Harmer, Martin P.

“…There is a growing body of the literature that suggests that there are grain boundary structures that exist in ceramic systems that are not predicted by bulk…”
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Relating Grain-Boundary Complexion to Grain-Boundary Kinetics I: Calcia-Doped Alumina by Dillon, Shen J., Harmer, Martin P.

“…Because of the complex nature of internal interfaces it has been a continual challenge to link the grain growth behavior of alumina (especially the onset of…”
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