Porosity and pore size dependence of the real in-line transmission of YAG and alumina ceramics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43898221" target="_blank" >RIV/60461373:22310/14:43898221 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Porosity and pore size dependence of the real in-line transmission of YAG and alumina ceramics

Popis výsledku v původním jazyce

Based on the exact Mie solution for spheres and several approximations known from scattering theory (Rayleigh, Fraunhofer, Rayleigh-Gans-Debye), including the less well known van de Hulst approximation and a new closed-form expression (using scaling of the Rayleigh result),the real in-line transmission (RIT) of porous YAG, porous alumina and dense YAG-alumina composites is analyzed. In particular, pore size andinclusion size dependences of the RIT are calculated for these materials at wavelengths 695, 1031 and 2940 nm. It is shown that the van de Hulst approximation is superior to all other approximations when the refractive indices are close as in the case of almost-index-matching inclusions atlow concentrations, but our closed-form expression, although in this very special case slightly less precise than the van de Hulst approximation, is always the safer choice for estimating the RIT. Both approaches are superior to any of the other approximations.

Název v anglickém jazyce

Porosity and pore size dependence of the real in-line transmission of YAG and alumina ceramics

Popis výsledku anglicky

Based on the exact Mie solution for spheres and several approximations known from scattering theory (Rayleigh, Fraunhofer, Rayleigh-Gans-Debye), including the less well known van de Hulst approximation and a new closed-form expression (using scaling of the Rayleigh result),the real in-line transmission (RIT) of porous YAG, porous alumina and dense YAG-alumina composites is analyzed. In particular, pore size andinclusion size dependences of the RIT are calculated for these materials at wavelengths 695, 1031 and 2940 nm. It is shown that the van de Hulst approximation is superior to all other approximations when the refractive indices are close as in the case of almost-index-matching inclusions atlow concentrations, but our closed-form expression, although in this very special case slightly less precise than the van de Hulst approximation, is always the safer choice for estimating the RIT. Both approaches are superior to any of the other approximations.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F12%2F1170" target="_blank" >GAP108/12/1170: Porézní keramika s řízenou elasticitou a tepelnou vodivostí</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

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Svazek periodika

34

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

12

Strana od-do

2745-2756

Kód UT WoS článku

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EID výsledku v databázi Scopus

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