Mechanical properties of and composites with interpenetrating networks

Knechtel, Mathias; Prielipp, Helge; Müllejans, Harald; Claussen, Nils; Rödel, Jürgen

doi:10.1016/0956-716x(94)90531-2

Cited by 49 publications

(18 citation statements)

References 11 publications

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“…Dieser Wert ist deutlich unter der gemessenen mittleren Dauerfestigkeit von 2,45x10 -3 des FU2590 / AlSi7Mg Verbundwerkstoffes, sodass Ermüdungsbruch im Aluminium zu erwarten wäre. Allerdings erfährt das Aluminium durch den umliegenden Graphit eine Dehnungsbehinderung, welche seine Festigkeit wesentlich erhöhen kann [19]. Ob nun Ermüdungsbruch in Aluminium eintritt oder nicht, hängt es davon ab, wie stark die Materialverfestigung ist und wo der Riss sich bildet: Dehnungsbehinderung im Inneren des Materials ist stärker als an der Probenoberfläche.…”

Section: Diskussionunclassified

Ermüdungsverhalten und Dauerfestigkeit von Graphit und Aluminium – infiltriertem Graphit

Papakyriacou¹,

Mayer²

2006

Mat.-wiss. u. Werkstofftech.

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cycles. The open porosity of Graphite (10-11 Vol.-%) was infiltrated with the aluminium alloy using the squeeze casting infiltration method, which led to an increase of the bending strength by 50 %, increase of tensile strength by 30 % and increase of stiffness by 15 %. Fully reversed tension-compression loading of FU2590 delivers a mean endurance limit at 10 9 cycles at the normalized maximum stresses (i.e. maximum tension stress of a cycle divided by the static strength) of 0,65AE0,03. Mean numbers of cycles to failure of 10 4 were found in fully reversed bending tests at the normalized maximum stress of 0,78. The infiltrated material shows approximately 30 % higher cyclic strength in reversed bending tests, and the mean endurance limit under tension compression loading increases by 15 %. The increased endurance limit of the infiltrated material is caused by the increased stiffness. The increased toughness of graphite due to the infiltration with aluminium is of additional beneficial influence at the higher cyclic stresses investigated in reversed bending tests and in static tests.

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Section: Diskussionunclassified

Ermüdungsverhalten und Dauerfestigkeit von Graphit und Aluminium – infiltriertem Graphit

Papakyriacou¹,

Mayer²

2006

Mat.-wiss. u. Werkstofftech.

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“…1,2 The advantages of CMC are derived from their unique microstructures. In some cases, each phase percolates throughout the microstructure and an interpenetrating network (IPN) microstructure is achieved.…”

Section: Introductionmentioning

confidence: 99%

Characterization of α-Al2O3–(Al–Si)3Ti composites

Avraham

Beyer

Janßen

et al. 2006

Journal of the European Ceramic Society

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“…A great deal of researchers devoted to the wettability improvement by the way of ceramic surface metallization. Metal deposition on ceramics generates new interfaces between dissimilar materials, involving considerations of adhesion through physical, chemical, and/or mechanical bonding that act across the coating-substrate interface, and also spreading and interface evolution when in contact with liquid metals [5][6][7]. Some research indicates [8][9] that Cr and its alloy can improve the wettability of the Al/ceramic interfaces.…”

Section: Introductionmentioning

confidence: 99%

Influence of Cr-Fe coating on wettability of aluminum on ZTA ceramics

Wang¹,

Zheng²,

Lü³

et al. 2011

Rare Metals

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The influence of Cr-Fe alloy coating on the spreading kinetics and contact angles of aluminum on ZTA ceramics were investigated using a sessile drop method. For this purpose, SEM and EDS were used to investigate the spreading kinetics transition of the reactive wetting system. The results show the contact angle of Al/ZTA is 88° at 1373 K, which is almost equal to that of Al/Al 2 O 3 and Al/ZrO 2 . Sputtering coated Cr-Fe film on ZTA substrate improves the wettability markedly. The contact angle decreases to 9.2° at the temperature of 1223 K.

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Mechanical properties of and composites with interpenetrating networks

Cited by 49 publications

References 11 publications

Ermüdungsverhalten und Dauerfestigkeit von Graphit und Aluminium – infiltriertem Graphit

Ermüdungsverhalten und Dauerfestigkeit von Graphit und Aluminium – infiltriertem Graphit

Characterization of α-Al2O3–(Al–Si)3Ti composites

Influence of Cr-Fe coating on wettability of aluminum on ZTA ceramics

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