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Statements

Subject Item
n2:RIV%2F61389021%3A_____%2F05%3A00025708%21RIV06-AV0-61389021
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Plasma sprayed coatings, thanks to their specific structure, are considered for applications with thermal shocks. Alumina, Alumina-Titania as well as less common spraying materials like mullite, forsterite and ilmenite were selected for testing. Carbon steel coupons were used as substrate. Flame-sprayed bond coats of Ni-Cr and Ni-Al under plasma sprayed ceramic coating were applied for comparison in selected cases. Two different regimes were used to simulate high and low temperature thermal cycling. Before the test and after given number of cycles coating's adhesion was tested by a standard tensile test (EN 582). After the test also the microstructure of samples was observed to evaluate the damage mechanism. It has been proved that Titania addition to Alumina improves the adhesion of coatings under thermal cycling, especially for the coatings without any bond coat. All materials had higher adhesion after each given number of cycles with bond coat than without. Plasma sprayed coatings, thanks to their specific structure, are considered for applications with thermal shocks. Alumina, Alumina-Titania as well as less common spraying materials like mullite, forsterite and ilmenite were selected for testing. Carbon steel coupons were used as substrate. Flame-sprayed bond coats of Ni-Cr and Ni-Al under plasma sprayed ceramic coating were applied for comparison in selected cases. Two different regimes were used to simulate high and low temperature thermal cycling. Before the test and after given number of cycles coating's adhesion was tested by a standard tensile test (EN 582). After the test also the microstructure of samples was observed to evaluate the damage mechanism. It has been proved that Titania addition to Alumina improves the adhesion of coatings under thermal cycling, especially for the coatings without any bond coat. All materials had higher adhesion after each given number of cycles with bond coat than without. Oxid hlinitý, čistý a s přídavkem oxidu titaničitého, a dále silikátové materially mullit, forsterit a ilmenit byly zkoumány z hlediska odolnosti proti teplotním šokům. Všechny materiály byly připraveny v podobě plazmových nástřiků na ocelových podložkách, ve vybraných případech navíc s mezivrstvami Ni-Cr a Ni-Al. Vzorky byly tepelně namáhány opakovaným ohříváním v peci a rychlým zchlazením. V průběhu testu byla sledována přilnavost nástřiků v podložce metodikou vycházející z tahové zkoušky dle EN 582. Po testech byla vyhodnocována mikrostruktura a proveden rozbor charakteru poruch. Bylo ukázáno, že přídavek oxidu titaničitého do oxidu hlinitého zlepšuje jeho odolnost proti tepelné únavě.
dcterms:title
Zkoušení tepelné únavy keramických nástřiků vyrobených pomocí plazmatronu s vodní stabilizací Thermal fatigue testing of ceramic coatings produced by water-stabilized plasma gun Thermal fatigue testing of ceramic coatings produced by water-stabilized plasma gun
skos:prefLabel
Zkoušení tepelné únavy keramických nástřiků vyrobených pomocí plazmatronu s vodní stabilizací Thermal fatigue testing of ceramic coatings produced by water-stabilized plasma gun Thermal fatigue testing of ceramic coatings produced by water-stabilized plasma gun
skos:notation
RIV/61389021:_____/05:00025708!RIV06-AV0-61389021
n3:strany
1183;1186
n3:aktivita
n18:P
n3:aktivity
P(KSK1010104)
n3:dodaniDat
n14:2006
n3:domaciTvurceVysledku
n5:9073914 n5:4036255
n3:druhVysledku
n6:D
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
546666
n3:idVysledku
RIV/61389021:_____/05:00025708
n3:jazykVysledku
n8:eng
n3:klicovaSlova
thermal fatigue; Alumina; adhesion
n3:klicoveSlovo
n4:thermal%20fatigue n4:Alumina n4:adhesion
n3:kontrolniKodProRIV
[5D4833BE2F66]
n3:mistoKonaniAkce
Basilej
n3:mistoVydani
Dusseldorf
n3:nazevZdroje
Proceedings of International Thermal Spray Conference 2005
n3:obor
n17:JH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n11:KSK1010104
n3:rokUplatneniVysledku
n14:2005
n3:tvurceVysledku
Jakubov, M. Ctibor, Pavel Neufuss, Karel
n3:typAkce
n15:WRD
n3:zahajeniAkce
2005-05-02+02:00
s:numberOfPages
8
n10:hasPublisher
DSV-Verlag, Dusseldorf
n19:isbn
3-87155-793-5