About: Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites

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About: Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Positron annihilation spectroscopy (oPs lifetime, coincidence Doppler broadening techniques) was employed for defect studies of %22Ti%22-based nanocomposites prepared by high-energy ball milling. It was found that size of nanoscopic holes is reduced with increasing milling time in H2 /He atmosphere and also probability of Ps formation in holes decreases. At the same time the Ti content in the vicinity of holes increases. A simple explanation of these observations was suggested. The effect of filling the nanoscopic pores with hydrogen is enhanced in TiH2 milled with h-BN or B in He atmosphere. Sufficiently long milling time leads to a similar size distribution of nanoscopic holes in Ti/h-BN and Ti/B, despite the fact that it differs substantially in the initial powders, however, density of nanoscopic holes in Ti/B is significantly lower than in Ti/h-BN Positron annihilation spectroscopy (oPs lifetime, coincidence Doppler broadening techniques) was employed for defect studies of %22Ti%22-based nanocomposites prepared by high-energy ball milling. It was found that size of nanoscopic holes is reduced with increasing milling time in H2 /He atmosphere and also probability of Ps formation in holes decreases. At the same time the Ti content in the vicinity of holes increases. A simple explanation of these observations was suggested. The effect of filling the nanoscopic pores with hydrogen is enhanced in TiH2 milled with h-BN or B in He atmosphere. Sufficiently long milling time leads to a similar size distribution of nanoscopic holes in Ti/h-BN and Ti/B, despite the fact that it differs substantially in the initial powders, however, density of nanoscopic holes in Ti/B is significantly lower than in Ti/h-BN (en)
Title	Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites (en)
skos:prefLabel	Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites (en)
skos:notation	RIV/00216208:11320/10:10069754!RIV11-MSM-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KAN300100801), P(MEB100912), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Procházka, Ivan Čížek, Jakub
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	287630
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10069754
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	nanocomposites; Ti/B; Ti/h-BN; nanoscopic holes; Size distributions (en)
http://linked.open.../riv/klicoveSlovo	nanocomposites nanoscopic holes Size distributions Ti/B Ti/h-BN
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[2FF208D21FA7]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Multifunctional bulk metallic materials with nanocrystalline and ultrafine-grained structure Hydrogen-induced deformation of thin metal films
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	107
http://linked.open...iv/tvurceVysledku	Borchers, C. Morozova, O. S. Procházka, Ivan Čížek, Jakub Pundt, A.
http://linked.open...ain/vavai/riv/wos	000275028900025
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0021-8979
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites Size distributions of nanoscopic holes in Ti/h-BN and Ti/B nanocomposites

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