PREPARATION OF SILICON NANOPARTICLES BY MEANS OF DISINTEGRATION IN A CAVITATION WATER JET

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F10%3A86076561" target="_blank" >RIV/61989100:27230/10:86076561 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27350/10:86076561
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
PREPARATION OF SILICON NANOPARTICLES BY MEANS OF DISINTEGRATION IN A CAVITATION WATER JET
Original language description
High-energetic water jet (at cross-sectional velocity exceeding 660 ms(-1)) represents a liquid flow with cross-sectional power density about/or above 144 kWmm(-2). In the experimental Water Jet Mill (WJM) device, potent dynamics of disintegration of silicon microparticles develop during the passage of modified cavitation water jet through the microparticle dispersion. The main mechanism of this disintegration of solid microparticles is the extreme impact pressure of a water-hammer on particle surface in the termination phase of the implosion of vapor cavitation bubbles. Around the working temperature of WJM about 65 degrees C, cavitation erosion of solid materials in water reaches high intensity. Gradients of flow velocity in the disintegration zonesof WJM rise up to 1000 ms(-1)/mm and generate markedly high tensile stresses in the liquid, resulting in the creation of vapor cavitation bubbles. The cavitation coefficient reaches values of 10(-4) rank and the cavitation intensity is ve
Czech name
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Czech description
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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

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