The contribution of 211 particles to the mechanical reinforcement mechanism of 123 superconducting single domains [PDF]
, 2003 Hardness and fracture toughness of Dy-123 single-domains were studied by Vickers micro-indentation. A significant anisotropy of the mechanical properties was observed. Hardness tests give higher values when performed in (001) planes rather than in planes
Ausloos, M. +7 more
core +2 more sources
Indenter Tip Radius and Micro-Indentation Hardness [PDF]
, 2007 Using finite element method with the conventional J 2 theory and strain gradient theory respectively, the effect of the indenter tip radius on the micro-indentation hardness is investigated in the present paper. It is found that the former can not predict the size effect even considering the indenter tip radius, while the latter gives a good agreement ...
C. J. Tao +3 more
openaire +1 more source
Features of Measuring the Hardness of a Metal Surface Modified with Ultrafine Particles of Minerals
Приборы и методы измерений, 2020 One of the important characteristics of the surface properties of metal parts subjected to friction is hardness. Hardness measurements are important for determining the operational characteristics of parts and monitoring the technological regimes of ...
A. V. Skazochkin +2 more
doaj +1 more source
Assessment of crystallographic influence on material properties of calcite brachiopods [PDF]
, 2008 Calcium carbonate biominerals are frequently analysed in materials science due to their abundance, diversity and unique material properties. Aragonite nacre is intensively studied, but less information is available about the material properties of ...
A. Pérez-Huerta +3 more
core +1 more source
Case Studies in Construction Materials, 2022 Nano indentation has become an important means to study the mechanical properties of rock because of its nondestructive and high efficiency. In this work, the Weibull distribution function is used to statistically analyze the nanoindentation test results
Shankun Zhao +7 more
doaj +1 more source
Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]
, 2010 Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Chen, Zhen Guo, +7 more
core +5 more sources
Mechanical properties of Al2O3 inverse opals by means of nanoindentation [PDF]
, 2016 In order to understand the mechanical behaviour of Al2O3 inverse opals, nanoindentation techniques have been implemented in material layers with three different microstructures, in terms of hollow or polystyrene spheres, with Al2O3 shells of distinct ...
Alcubilla González, Ramón +6 more
core +2 more sources
Fracture toughness of a zirconia engineering ceramic and the effects thereon of surface processing with fibre laser radiation [PDF]
, 2010 Vickers hardness indentation tests were employed to investigate the near-surface changes in the hardness of a fibre laser-treated and an as-received ZrO2 engineering ceramic.
Lawrence, Jonathan +2 more
core +3 more sources
Periodic topological lattice with different indentation hardness on opposite surfaces
Materials & Design, 2019 Different surface properties are needed simultaneously in many applications, especially under an indentation load or impact load. This study proposes one class of novel periodic topological mechanical metamaterials, 2D topological honeycomb structure and
Xiao-Fei Guo, Li Ma
doaj +1 more source
Indentation size effect and hardness of materials [PDF]
E3S Web of Conferences, 2023 In recent decades, the Indentation Size Effect (ISE), which manifests itself as a change in fixed hardness depending on indentation conditions, has become one of the most urgent problems of modern materials science.
Udalov A.V., Udalov A.A.
doaj +1 more source