Results 141 to 150 of about 111,237 (217)

An evaluation of mechanical properties of YBaCuO and (Sm,Gd)BaCuO bulk superconductors using Vickers hardness test at cryogenic temperatures

IEEE transactions on applied superconductivity, 2002
Y. Yoshino, Akira IWABUCHI, K. Katagiri, K. Noto, N. Sakai, Akira Murakami   +5 more
openalex   +2 more sources

Characterization of the inhomogeneous constitutive properties of laser welding beams by the micro-Vickers hardness test and the rule of mixture

, 2011
Yanli Song, Lin Hua, Dongning Chu, Jian Lan   +3 more
openalex   +2 more sources

A quantitative alternative to the Vickers hardness test based on a correlation between thermal diffusivity and hardness—applications to laser-hardened carburized steel

, 2003
Karem Boubaker, M. Bouhafs, N. Yacoubi
openalex   +2 more sources

Evaluation of Vickers hardness of different types of acrylic denture base resins with and without glass fibre reinforcement

Gerodontology, 2012
OBJECTIVE To evaluate the Vickers hardness of different acrylic resins for denture bases with and without the addition of glass fibres. BACKGROUND It has been suggested that different polymerisation methods, as well as the addition of glass fibre (FV ...
Doglas Cecchin, Marcelo Ferraz Mesquita
exaly   +2 more sources

Mechanical properties of YBCO and YBCO+ZnO polycrystalline superconductors using Vickers hardness test at cryogenic temperatures

, 2004
Uğur Kölemen, S. Çelebi, Y. Yoshino, A. Öztürk   +3 more
openalex   +2 more sources

Determination of the hardness and elastic modulus from continuous vickers indentation testing [PDF]

Journal of Materials Science, 1996
Continuous Vickers (Hv) indentation tests were performed on different materials (ion crystals, metals, ceramics, silica glass and plastic). Load-indentation depth curves were taken during the loading as well as during the unloading period by a computer controlled hydraulic mechanical testing machine (MTS 810).
Gubicza, Jenő, Juhász, A., Tasnádi, P., Arató, Péter, Voros, G.   +4 more
openaire   +1 more source

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Vickers hardness testing of sucrose single crystals

Journal of Crystal Growth, 1994
Abstract Using a technique developed by Gillespie [BSc Thesis, University of Strathclyde, June 1982], single crystals of sucrose 3–5 mm on an edge were grown isothermally from high-purity aqueous solution at relatively high supersaturation. The crystal fracture behavior was assessed using Vickers indentation hardness testing to relate to observations
John N. Sherwood, W.L. Elban, David B. Sheen   +2 more
openaire   +2 more sources

Microstructure and Vickers-hardness of 20CrMnTiH steel during hot compression testing [PDF]

Ironmaking & Steelmaking, 2017
The isothermal hot compression tests of 20CrMnTiH steel were carried out by using Gleeble-3500 thermo-simulation-machine at deformation temperatures ranging from 1123 to 1423 K and at strain rates ...
Fei Qin, Wei Feng, Shuting Wu
openaire   +1 more source

Algorithms for microindentation measurement in automated Vickers hardness testing

SPIE Proceedings, 2011
Current algorithms in automated indentation measurement in the context of Vickers microindentation hardness testing suffer from a lack of robustness with respect to entirely missed indentation corner points when applied to real world data sets. Four original algorithms are proposed, discussed and evaluated on a significant data set of indentation ...
Michael Gadermayr, Andreas Maier, Andreas Uhl   +2 more
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Comparison of Brinell and Vickers Hardness Tests on Dental Casting Gold Alloys

Journal of Dental Research, 1973
The relationship between Vickers and Brinell hardness numbers of dental casting gold alloys was found to be linear; the addition of 19 to the Brinell number approximated the Vickers number fairly well. The coefficient of variation for the Brinell test was about 1 % less than that of the Vickers test. Effects of reading error, sample inhomogeneity, and
J.D. Eick, George Dickson, J.A. Barton
openaire   +3 more sources