Dataset Information

Enhancing radiation tolerance by controlling defect mobility and migration pathways in multicomponent single-phase alloys.

ABSTRACT: A grand challenge in material science is to understand the correlation between intrinsic properties and defect dynamics. Radiation tolerant materials are in great demand for safe operation and advancement of nuclear and aerospace systems. Unlike traditional approaches that rely on microstructural and nanoscale features to mitigate radiation damage, this study demonstrates enhancement of radiation tolerance with the suppression of void formation by two orders magnitude at elevated temperatures in equiatomic single-phase concentrated solid solution alloys, and more importantly, reveals its controlling mechanism through a detailed analysis of the depth distribution of defect clusters and an atomistic computer simulation. The enhanced swelling resistance is attributed to the tailored interstitial defect cluster motion in the alloys from a long-range one-dimensional mode to a short-range three-dimensional mode, which leads to enhanced point defect recombination. The results suggest design criteria for next generation radiation tolerant structural alloys.

SUBMITTER: Lu C

PROVIDER: S-EPMC5171798 | biostudies-other | 2016 Dec

REPOSITORIES: biostudies-other

ACCESS DATA

Publications

Enhancing radiation tolerance by controlling defect mobility and migration pathways in multicomponent single-phase alloys.

Lu Chenyang C Niu Liangliang L Chen Nanjun N Jin Ke K Yang Taini T Xiu Pengyuan P Zhang Yanwen Y Gao Fei F Bei Hongbin H Shi Shi S He Mo-Rigen MR Robertson Ian M IM Weber William J WJ Wang Lumin L

Nature communications 20161215

A grand challenge in material science is to understand the correlation between intrinsic properties and defect dynamics. Radiation tolerant materials are in great demand for safe operation and advancement of nuclear and aerospace systems. Unlike traditional approaches that rely on microstructural and nanoscale features to mitigate radiation damage, this study demonstrates enhancement of radiation tolerance with the suppression of void formation by two orders magnitude at elevated temperatures in ...[more]

PMID: 27976669

Similar Datasets

Project description:Recent improvements in colorectal cancer (CRC) incidence, mortality, stage at diagnosis, and survival in the general U.S. population have been attributed to routine screening with prompt removal of polyps, early detection, and timely and appropriate treatment. American Indians/Alaska Natives (AI/ANs) have not experienced improvements in CRC related outcomes and are significantly less likely than non-Hispanic Whites to receive recommended CRC screening. The purpose of this three-arm randomized controlled trial is to determine the efficacy of interventions designed to enhance CRC screening. The study also uses mixed methods to finalize the intervention and to determine promoters and barriers of screening. The study also conducts process evaluation to determine cost-effectiveness of the interventions, fidelity of study implementation, and to develop plans to sustain and scale-up the intervention model. The study will determine the efficacy of serially implemented interventions of graded intensity for increasing CRC screening using the fecal immunochemical test (FIT) in accordance to recommended guidelines among average risk American Indians (AIs) aged 50-75 residing on reservations in rural Southwestern U.S. Serial implementation refers to offering routine screening, irrespective of response to an earlier invitation, in concordance with guidelines which recommend annual FIT testing between ages 50-75. The FIT is most appropriate because it is an approved, high sensitivity fecal occult blood test and is available at Indian Health Service (IHS) and tribal health facilities where resources to provide screening colonoscopy are limited. The study is a collaborative effort between the Albuquerque Area Indian Health Board (100% Indian-owned and operated), six Pueblo Tribes in rural Southwestern U.S., and the University of New Mexico. Findings from this research could lead to an immediate increase in CRC screening and ultimately reduce CRC burden among AIs, thus addressing national and tribal priorities of reducing CRC disparities among AIs.

Dataset Information

Enhancing radiation tolerance by controlling defect mobility and migration pathways in multicomponent single-phase alloys.

Publications

Enhancing radiation tolerance by controlling defect mobility and migration pathways in multicomponent single-phase alloys.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure