TY  - JOUR
AU  - Munoz, A.
AU  - Martinez, J.
AU  - Monge, M.A.
AU  - Savoini, B.
AU  - Pareja, R.
AU  - Radulescu, A.
TI  - SANS evidence for the dispersion of nanoparticles in W-1Y203 and W-1La203 processed by hot isoastatic pressing
JO  - International journal of refractory metals & hard materials
VL  - 33
SN  - 0263-4368
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PreJuSER-20893
SP  - 6 - 9
PY  - 2012
N1  - The present work was supported by the Consejeria de Educacion de la Comunidad de Madrid, through the program ESTRUMAT-CM S2009MAT-1585 and by the Ministerio de Innovacion y Ciencia (project ENE2008-06403-C06-04). The additional financial support from EURATOM/CIEMAT association through contract EFDA WP11-MAT-WWALLOY is also acknowledged. The authors thank the Microscopy Laboratory of CENIM-CSIC for the high resolution SEM measurements.
AB  - The development of a dispersion of nanoparticles in the W-1%Y2O3 and W-1%La2O3 (wt%) alloys processed by hot isostatic pressing have been investigated using small-angle neutron scattering. The analyses of the scattering data using the Beaucage unified approach reveal the presence of a bi-modal distribution of spherical scattering centers with sizes of less of 180 nm in these alloys. The mode values of these centers are found at similar to 10 and 40 nm in W-1%Y2O3, and at similar to 15 and 80 nm in W-1%La2O3. The scanning electron microscopy analyses showed the presence of small second phase particles. The contribution of the pore space to the scattering curves has been analyzed using the results obtained for pure W processed following the same procedure used for the alloys, and the porosity measurements of the samples. (C) 2012 Elsevier Ltd. All rights reserved.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000304644800002
DO  - DOI:10.1016/j.ijrmhm.2012.01.010
UR  - https://juser.fz-juelich.de/record/20893
ER  -