Vznik nanokompozitní keramiky na bázi oxidů hliníku, zirkonia a křemíku

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F07%3A00098593" target="_blank" >RIV/61389021:_____/07:00098593 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388980:_____/07:00098593

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Formation of nanocomposite alumina-zirconia-silica ceramics

Popis výsledku v původním jazyce

Nanostructured ceramic materials were prepared from ternary Al2O3 ? ZrO2 ? SiO2 feedstock powders by plasma spraying and subsequent heat treatment of the rapidly solidified thick coatings or free standing parts. Three different feedstock powders with increasing SiO2 content were used in experiments. Resulting materials were characterized by a variety of analytical and microscopy techniques and selected mechanical properties were measured as well. The as-sprayed materials were amorphous or partially nanocrystalline depending on their SiO2 content. The as-sprayed material has low porosity and crystallizes when heated to approximately 950?C. By controlled annealing to crystallization temperature, nanocomposite structures were produced with predominant tetragonal-ZrO2 nanocrystallites embedded in amorphous matrix. With increasing SiO2 content, the crystallization rate decreased and the average crystallite size increased.

Název v anglickém jazyce

Formation of nanocomposite alumina-zirconia-silica ceramics

Popis výsledku anglicky

Nanostructured ceramic materials were prepared from ternary Al2O3 ? ZrO2 ? SiO2 feedstock powders by plasma spraying and subsequent heat treatment of the rapidly solidified thick coatings or free standing parts. Three different feedstock powders with increasing SiO2 content were used in experiments. Resulting materials were characterized by a variety of analytical and microscopy techniques and selected mechanical properties were measured as well. The as-sprayed materials were amorphous or partially nanocrystalline depending on their SiO2 content. The as-sprayed material has low porosity and crystallizes when heated to approximately 950?C. By controlled annealing to crystallization temperature, nanocomposite structures were produced with predominant tetragonal-ZrO2 nanocrystallites embedded in amorphous matrix. With increasing SiO2 content, the crystallization rate decreased and the average crystallite size increased.

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/KAN300430651" target="_blank" >KAN300430651: Nanokrystalizace plazmových nástřiků na bázi eutektických směsí keramik</a><br>

Návaznosti

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

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Acta Technica CSAV

ISSN

0001-7043

e-ISSN

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Svazek periodika

52

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

331-341

Kód UT WoS článku

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EID výsledku v databázi Scopus

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