Published April 1, 2019 | Version v1
Journal article Metadata-only

Effects of helium implantation on mechanical properties of (Al0.31Cr0.20Fe0.14Ni0.35)O high entropy oxide films

Creators

  • 1. Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064 (China)
  • 2. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900 (China)
  • 3. Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189 (China)

Description

It is widely accepted that helium (He) bubbles can prevent dislocations from moving and causing hardening and embrittlement of the material. However, He can affect the mechanical properties of materials in various ways. In this work, ultrafine nanocrystal high entropy oxide (HEO) films with He implantation are prepared by using a radio frequency (RF) reactive magnetron sputtering system to investigate the effects of He bubbles located at grain boundary on the mechanical properties of the films. The mechanical properties of the HEO films are investigated systematically via nanoindentation measurements. The results indicate that the grain boundary cavities induced by He implantation can degrade the hardness, the elastic modulus, and the creep resistance of the HEO films. The mechanical properties of the HEO films are sensitive to the interaction between the He bubbles and the dominating defects. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1056/28/4/046201

Additional details

Identifiers

DOI
10.1088/1674-1056/28/4/046201;

Publishing Information

Journal Title
Chinese Physics. B
Journal Volume
28
Journal Issue
4
Journal Page Range
[7 p.]
ISSN
1674-1056

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
52032990
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
ALUMINIUM OXIDES; BUBBLES; CHROMIUM OXIDES; DISLOCATIONS; ENTROPY; FILMS; GRAIN BOUNDARIES; HARDENING; HELIUM; IRON OXIDES; MAGNETRONS; NANOSTRUCTURES; NICKEL OXIDES; RADIOWAVE RADIATION; SPUTTERING
Descriptors DEC
ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHROMIUM COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTROMAGNETIC RADIATION; ELECTRON TUBES; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FLUIDS; GASES; IRON COMPOUNDS; LINE DEFECTS; MICROSTRUCTURE; MICROWAVE EQUIPMENT; MICROWAVE TUBES; NICKEL COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; RARE GASES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS