Effect of Ti and Zr additions on wettability and work of adhesion in Ag/C system

• Autorzy: Wójcik-Grzybek D. , Frydman K. , Sobczak N. , Nowak R. , Piątkowska A. , Pietrzak K.

Warianty tytułu

PL

Wpływ Ti i Zr na zwilżalność i pracę adhezji w układzie Ag/C

• Języki publikacji: EN

Abstrakty

EN

Wettability in the silver/carbon system was examined by the sessile drop method under vacuum at the temperature of 1243 K. Vitreous carbon, diamond and graphite were used as solid substrates. after wettability tests, the solidified Ag/C and Ag-X/C (X - 1 wt.% Ti or Zr) couples were subjected to structural characterization by SEM and EDX analysis. liquid pure silver does not wet these substrates and shows week adhesion, regardless of the type of the carbon material used. the introduction of 1 wt.% carbide forming additions Ti or Zr into silver changes dramatically the interaction in the Ag/C system leading to the formation of continuous reaction product layers (TiC_x and ZrC_x, respectively) at the drop/substrate interface. these interfacial layers are responsible for good wetting and high work of adhesion between agti1 and AgZr1 alloys and all types of carbon materials examined in this study.

PL

Przedstawiono wyniki badań zwilżalności w układzie srebro/węgiel wykonanych w atmosferze próżni, w temperaturze 1243 K. Pomiary kąta zwilżania wykonano metodą leżącej kropli na podłożach z węgla szklistego, diamentu i grafitu. Po testach zwilżalności wytworzone pary materiałów Ag/C i Ag-X/C (X - 1% wag. Ti lub Zr) poddano analizie strukturalnej metodami SEM i EDX. Ag/C jest układem niereaktywnym, w którym srebro nie zwilża węgla. Prezentowane badania wykazują, że dodatek 1% wag. Ti lub Zr do srebra powoduje obniżenie kątów zwilżania i wzrost wartości pracy adhezji w układzie Ag/C niezależnie od typu materiału węglowego. Jest to związane z powstawaniem na granicy kontaktu kropli z podłożem węglowym warstw przejściowych zawierających węgliki TiC_x lub ZrC_x.

Słowa kluczowe

EN

wettability; adhesion; contact angle; Ag/C system

PL

zwilżalność; adhezja; kąt zwilżania; układ Ag/C

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Technologii Materiałów Elektronicznych
• Czasopismo: Materiały Elektroniczne
• Rocznik: 2017
• Tom: T. 45, nr 1
• Strony: 4--11
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Wójcik-Grzybek D.

• Institute of Electronic Materials Technology, 133 Wólczyńska Str., 01-919 Warsaw, Poland

autor

Frydman K.

• Institute of Electronic Materials Technology, 133 Wólczyńska Str., 01-919 Warsaw, Poland

autor

Sobczak N.

• Center of High-Temperature Studies of Metals and Alloys, Foundry Research Institute, 73 Zakopiańska Str., 30-418 Cracow, Poland

autor

Nowak R.

• Center of High-Temperature Studies of Metals and Alloys, Foundry Research Institute, 73 Zakopiańska Str., 30-418 Cracow, Poland

autor

Piątkowska A.

• Institute of Electronic Materials Technology, 133 Wólczyńska Str., 01-919 Warsaw, Poland

autor

Pietrzak K.

• Institute of Electronic Materials Technology, 133 Wólczyńska Str., 01-919 Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).