TY - JOUR
T1 - On a discrepancy in modulus of elasticity as determined from separate resonance frequencies of a bar sintered from copper-coated iron powder
AU - Kupkova, M
AU - Kupka, Martin
AU - Strobl, Susanne
AU - Cerny, M
AU - Khatibi, Golta
AU - Gierl, Christian
N1 - DOI: 10.1016/j.scriptamat.2007.06.001
Coden: SCMAF
Affiliations: Institute of Materials Research, SAS, Ko¿ice, Slovakia; Institute of Experimental Physics, SAS, Ko¿ice, Slovakia; Institute of Chemical Technology of Inorganic Materials, TU Vienna, Vienna, Austria; Institute of Rock Structure and Mechanics, ASCR, Prague, Czech Republic; Institute of Physical Chemistry - Materials Science, University of Vienna, Vienna, Austria
Adressen: Kupková, M.; Institute of Materials Research; SAS Ko¿ice, Slovakia; email: [email protected]
Source-File: PhysicsScopus200208.csv
Import aus Scopus: 2-s2.0-34447629518
Importdatum: 21.02.2008 15:52:12
PY - 2007
Y1 - 2007
N2 - Iron powder particles were coated with a copper, compacted into a bar shape, sintered and machined. Bars were caused to resonate longitudinally, transversely edgewise and flatwise. Three separate determinations of elastic modulus were made from the resonance frequencies of these modes. Three different values of elastic modulus were obtained for each of the bars. The nature of the differences indicates that the bars possess an inherent "layered" structure with stiffness graded transversely to the compaction direction. This supports a recently considered hypothesis about the behaviour of powders. © 2007 Acta Materialia Inc.
AB - Iron powder particles were coated with a copper, compacted into a bar shape, sintered and machined. Bars were caused to resonate longitudinally, transversely edgewise and flatwise. Three separate determinations of elastic modulus were made from the resonance frequencies of these modes. Three different values of elastic modulus were obtained for each of the bars. The nature of the differences indicates that the bars possess an inherent "layered" structure with stiffness graded transversely to the compaction direction. This supports a recently considered hypothesis about the behaviour of powders. © 2007 Acta Materialia Inc.
U2 - 10.1016/j.scriptamat.2007.06.001
DO - 10.1016/j.scriptamat.2007.06.001
M3 - Article
SN - 1359-6462
VL - 57
SP - 639
EP - 642
JO - Scripta Materialia
JF - Scripta Materialia
IS - 7
ER -