Strain profiling of fatigue crack overload effects using energy dispersive X-ray diffraction

Autor: Tony Fast, Igor Zakharchenko, Mark Croft, John Skaritka, Thomas Tsakalakos, M. Lakshmipathy, Zhong Zhong, Najeh Jisrawi, R.L. Holtz, K. Sadananda

Publikováno v: International Journal of Fatigue. 27:1408-1419

Synchrotron based energy dispersive X-ray diffraction has been used to profile the strains around fatigue cracks in 4140 steel test specimens. In particular strain field comparisons were made on specimens prepared: with initial constant stress intens

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e790ce78ba960823524e0df82a9247a
https://doi.org/10.1016/j.ijfatigue.2005.06.022

Nanophase precursors for high-JcAg-clad superconducting BiPbSrCaCuO tapes

Autor: Mamoun Muhammed, J H Xu, K V Rao, Igor Zakharchenko, U. Balachandran, Alexander M. Grishin, Lingna Wang

Publikováno v: Superconductor Science and Technology. 8:94-100

A controlled coprecipitation technique has been used to synthesize precursors of superconducting BiPbSrCaCuO ceramics. The oxalate precursors were nano-sized powders with high homogeneity, low crystallinity, and well-defined stoichiometry. These prec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb435fab553eb4c74179d53deb266493
https://doi.org/10.1088/0953-2048/8/2/005

Cold drawn steel wires—processing, residual stresses and ductility — Part II: Synchrotron and neutron diffraction

Autor: Thomas Tsakalakos, Igor Zakharchenko, Mark Croft, Sylvie Pommier, Michel Clavel, Antoine Phelippeau, R. Levy-Tubiana, Zhong Zhong, C. Prioul

Publikováno v: Fatigue and Fracture of Engineering Materials and Structures
Fatigue and Fracture of Engineering Materials and Structures, Wiley-Blackwell, 2006, 22, pp.255-265
Fatigue and Fracture of Engineering Materials and Structures, Wiley-Blackwell, 2006, 29 (3), pp.255-265. ⟨10.1111/j.1460-2695.2005.00987.x⟩
Fatigue and Fracture of Engineering Materials and Structures, 2006, 22, pp.255-265
Fatigue and Fracture of Engineering Materials and Structures, 2006, 29 (3), pp.255-265. ⟨10.1111/j.1460-2695.2005.00987.x⟩

International audience; Cold drawing of steel wires leads to an increase of their mechanical strength and to a drop in their ductility. The increase of their mechanical strength has long been related to the reduction of the various material scales by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0805a837c9f41622a6d8cd359df31966
https://hal.archives-ouvertes.fr/hal-00020235

The characterisation and reactivity of nanostructured cerium-copper-oxide composites for environmental catalysis

Autor: Thomas Tsakalakos, Igor Zakharchenko, Mamoun Muhammed, Othon Adamopoulos, Mark Croft, Yu Zhang

Publikováno v: Web of Science

Nanophase Ce-Cu-O powder has been synthesised via co-precipitation approach, whereas computer-assisted thermodynamic modelling was used to predict the optimum experimental criteria. The properties of Ce-Cu-O composite (10 mol% CuO) have been extensiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::984d52266cf8fda6cc03fc52f7b84139
https://doi.org/10.1557/proc-676-y8.11

Angular stabilization of radiation axis of linear laser resonators

Autor: Viktor Koshelenko, Igor Zakharchenko

Publikováno v: OPTIKA '98: 5th Congress on Modern Optics.

Using calculation methods for off-centered optical systems, we have determined the conditions of laser radiation axis stabilization for linear laser resonators.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d97712f44cea519b778d8cc596e88f8
https://doi.org/10.1117/12.320970