Objemový nanokrystalický materiál na bázi oxidu hlinitého a zirkoničitého připravený plazmovým stříkáním

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F06%3A00044673" target="_blank" >RIV/61389021:_____/06:00044673 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Bulk nanocrystalline alumina-zirconia materials prepared by plasma spraying

Popis výsledku v původním jazyce

Two similar materials based on alumina-zirconia eutectic mixture have been successfully plasma sprayed by water stabilized plasma torch (WSP?). Feedstock powder of the first material comprising alumina, zirconia, and 15wt.% of silica was obtained by crushing cast and furnace-cooled tiles. The second feedstock powder was standard fused and crushed mixture of pure alumina and zirconia. Both thick coatings and free standing parts with very low open porosity were easily achieved by WSP?. The as-sprayed materials are mostly amorphous as determined by XRD. Thermal properties were measured by thermo-mechanical analysis (TMA) and differential thermal analysis (DTA). Upon annealing, the as-sprayed materials crystallize around 950?C. Short annealing times at thecrystallization temperature bring about very fine microstructure with average grain size as small as twelve nanometers. The fine microstructure was confirmed by transmission electron microscopy.

Název v anglickém jazyce

Bulk nanocrystalline alumina-zirconia materials prepared by plasma spraying

Popis výsledku anglicky

Two similar materials based on alumina-zirconia eutectic mixture have been successfully plasma sprayed by water stabilized plasma torch (WSP?). Feedstock powder of the first material comprising alumina, zirconia, and 15wt.% of silica was obtained by crushing cast and furnace-cooled tiles. The second feedstock powder was standard fused and crushed mixture of pure alumina and zirconia. Both thick coatings and free standing parts with very low open porosity were easily achieved by WSP?. The as-sprayed materials are mostly amorphous as determined by XRD. Thermal properties were measured by thermo-mechanical analysis (TMA) and differential thermal analysis (DTA). Upon annealing, the as-sprayed materials crystallize around 950?C. Short annealing times at thecrystallization temperature bring about very fine microstructure with average grain size as small as twelve nanometers. The fine microstructure was confirmed by transmission electron microscopy.

Druh

D - Stať ve sborníku

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

—

Projekt

—

Návaznosti

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 statě ve sborníku

?Thermal Spray 2006: Science, Innovation, and Application,?

ISBN

0-87170-809-4

ISSN

—

e-ISSN

—

Počet stran výsledku

2

Strana od-do

186-187

Název nakladatele

ASM International, Materials Park, OH, USA

Místo vydání

Seattle, USA

Místo konání akce

Seattle

Datum konání akce

15. 5. 2006

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—