Zobrazeno 1 - 10
of 29
pro vyhledávání: '"E. N. Hoffman"'
Publikováno v:
Journal of Nuclear Materials. 484:120-134
Herein we report on the formation of defects in response to neutron irradiation of polycrystalline Ti3SiC2 and Ti3AlC2 samples exposed to total fluences of ≈6 × 1020 n/m2, 5 × 1021 n/m2 and 1.7 × 1022 n/m2 at irradiation temperatures of 121(12),
Autor:
Brenda L. Garcia-Diaz, Lingfeng He, Darin J. Tallman, Robert L. Sindelar, E. N. Hoffman, Gordon Kohse, Michel W. Barsoum
Publikováno v:
Journal of Nuclear Materials. 468:194-206
Herein we report on the characterization of defects formed in polycrystalline Ti 3 SiC 2 and Ti 2 AlC samples exposed to neutron irradiation – up to 0.1 displacements per atom (dpa) at 350 ± 40 °C or 695 ± 25 °C, and up to 0.4 dpa at 350 ± 40
Autor:
Robert L. Sindelar, El’ad N. Caspi, E. N. Hoffman, Brenda L. Garcia-Diaz, Michel W. Barsoum, Gordon Kohse, Darin J. Tallman
Publikováno v:
Acta Materialia. 85:132-143
Herein we report on the effect of neutron irradiation – of up to 0.1 displacements per atom at 360(20) °C or 695(25) °C – on polycrystalline samples of Ti3AlC2, Ti2AlC, Ti3SiC2 and Ti2AlN. Rietveld refinement of X-ray diffraction patterns of th
Publikováno v:
Acta Materialia. 68:267-278
A shape memory alloy/MAX phase composite, namely NiTi/Ti 3 SiC 2 composite, was fabricated using spark plasma sintering at 1233 K under 100 MPa for 8 min, from a NiTi/Ti 3 SiC 2 powder mixture with a 50/50 v/v ratio. The thermal diffusivity was measu
Autor:
G.W. Bentzel, Robert L. Sindelar, Darin J. Tallman, Michel W. Barsoum, E. N. Hoffman, Brenda L. Garcia-Diaz
The demands of Gen IV nuclear power plants for long service life under neutron irradiation at high temperature are severe. Advanced materials that would withstand high temperatures (up to 1000+ oC) to high doses in a neutron field would be ideal for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00faa11ecd3e09a7eca841faa11b6047
https://doi.org/10.2172/1253946
https://doi.org/10.2172/1253946
Publikováno v:
Scripta Materialia. 65:388-391
The evolution of local strain on electrodeposited tin films upon aging has been monitored by digital image correlation (DIC) for the first time. Maps of principal strains adjacent to whisker locations were constructed by comparing pre- and post-growt
Autor:
Surojit Gupta, E. N. Hoffman, Oren D. Leaffer, Jonathan E. Spanier, Surendra K. Saxena, Michel W. Barsoum, Bouchaib Manoun
Publikováno v:
Solid State Communications. 149:1978-1983
Using a synchrotron X-ray radiation source and a diamond anvil cell we measured the dependences of the lattice parameters on quasi-hydrostatic pressure of the order of 50 GPa of the following MAX phases: Ti2InC, (Ti0.5,Zr0.5)2InC, Zr2InC and Ti2SnC,
Autor:
E. N. Hoffman, T. E. Skidmore
Publikováno v:
Journal of Nuclear Materials. 392:371-378
Carbon fiber-reinforced bisphenol-A epoxy matrix composite was evaluated for gamma radiation resistance. The composite was exposed to total gamma doses of 50, 100, and 200 Mrad. Irradiated and baseline samples were tested for tensile strength, hardne
Publikováno v:
Materials Chemistry and Physics. 112:587-591
A novel route for the synthesis of a porous, gas-permeable carbon thin film produced from a metal carbide layer was developed. The active carbon layer, known as carbide-derived carbon, was synthesized by chlorination at 350 °C of a TiC thin film dep