Tvrdost a modul pružnosti dvojčatných krystalů silikalitu-1

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F06%3A00040644" target="_blank" >RIV/61388955:_____/06:00040644 - 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

Hardness and elastic modulus of silicalite-1 crystal twins

Popis výsledku v původním jazyce

Silicalite-1 crystal twins 220x40x40 .micro.m3 in size were prepared by hydrothermal synthesis. Their hardnesses and elastic moduli were determined from depth sensing indentations using Berkovich tip. Measurements on all four lateral crystal faces did not show any significant difference, which is in agreement with the face equivalence given by form {100}. Also no difference in mechanical properties was found on those surface areas that appeared to be relatively resistant against etching with HF acid. As-synthesized crystals, calcined crystals (free of organic template by calcination) and fused silica bulk were compared. The calcined crystals were harder than as-synthesized ones but both much softer than fused silica. Elastic modulus of both as-synthesized and calcined crystals was practically the same while it was nearly doubled for fused silica. The ratios of hardness to reduced elastic modulus (H/E*) were found to be 0.063, 0.103 and 0.120 for as-synthesized crystals,...

Název v anglickém jazyce

Hardness and elastic modulus of silicalite-1 crystal twins

Popis výsledku anglicky

Silicalite-1 crystal twins 220x40x40 .micro.m3 in size were prepared by hydrothermal synthesis. Their hardnesses and elastic moduli were determined from depth sensing indentations using Berkovich tip. Measurements on all four lateral crystal faces did not show any significant difference, which is in agreement with the face equivalence given by form {100}. Also no difference in mechanical properties was found on those surface areas that appeared to be relatively resistant against etching with HF acid. As-synthesized crystals, calcined crystals (free of organic template by calcination) and fused silica bulk were compared. The calcined crystals were harder than as-synthesized ones but both much softer than fused silica. Elastic modulus of both as-synthesized and calcined crystals was practically the same while it was nearly doubled for fused silica. The ratios of hardness to reduced elastic modulus (H/E*) were found to be 0.063, 0.103 and 0.120 for as-synthesized crystals,...

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Microporous and Mesoporous Materials

ISSN

1387-1811

e-ISSN

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Svazek periodika

94

Číslo periodika v rámci svazku

1-3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

226-233

Kód UT WoS článku

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EID výsledku v databázi Scopus

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