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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10069754" target="_blank" >RIV/00216208:11320/10:10069754 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

Positron annihilation spectroscopy (oPs lifetime, coincidence Doppler broadening techniques) was employed for defect studies of "Ti"-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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

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Volume of the periodical

107

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

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UT code for WoS article

000275028900025

EID of the result in the Scopus database

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