Elastic constants of metal/ceramic composites with lamellar microstructures: Finite element modelling and ultrasonic experiments

Ziegler, T.; Neubrand, Achim; Roy, Siddhartha; Wanner, A.; Piat, Romana

doi:10.1016/j.compscitech.2008.12.009

Cited by 42 publications

(27 citation statements)

References 28 publications

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“…A key aspect of the process is to align the layers over macroscopic dimensions rather than in randomly oriented microscopic domains Ziegler et al 2009). This was achieved here by patterning the cold finger together with applying vibration during freezing.…”

Section: Microstructurementioning

confidence: 99%

A novel biomimetic approach to the design of high-performance ceramic–metal composites

Launey

Munch

Alsem

et al. 2009

J. R. Soc. Interface.

249

121

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The prospect of extending natural biological design to develop new synthetic ceramicmetal composite materials is examined. Using ice-templating of ceramic suspensions and subsequent metal infiltration, we demonstrate that the concept of ordered hierarchical design can be applied to create fine-scale laminated ceramic -metal (bulk) composites that are inexpensive, lightweight and display exceptional damage-tolerance properties. Specifically, Al 2 O 3 /Al -Si laminates with ceramic contents up to approximately 40 vol% and with lamellae thicknesses down to 10 mm were processed and characterized. These structures achieve an excellent fracture toughness of 40 MPa p m at a tensile strength of approximately 300 MPa. Salient toughening mechanisms are described together with further toughening strategies.

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Section: Microstructurementioning

confidence: 99%

A novel biomimetic approach to the design of high-performance ceramic–metal composites

Launey

Munch

Alsem

et al. 2009

J. R. Soc. Interface.

249

121

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“…and matrixes C (1) and C (2) are constructed with components of the tensors C C C c and C C C sec m respectively. Here the lamellas are oriented along axis 1 and the freezing direction is parallel to axis 3 direction.…”

Section: Nonlinear Homogenizationmentioning

confidence: 99%

“…The composite consists of Al2O3 (ceramic) and Al-12Si (metal) phases. The homogenization method based on the Mori-Tanaka scheme can be effectively utilized for modeling linear elastic behavior of the composites [2]. In this study nonlinear homogenization is used for simulation of the inelastic material behavior with taking into account plasticity of the metal phase.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear homogenization of metal‐ceramic composites with lamellar microstructure

Piat

Sinchuk

2011

Proc Appl Math and Mech

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Using nonlinear homogenization methods for the computation of the material response of metal-ceramic composites with lamellar microstructure is a power approach to do computation less costly in comparison to finite elements modeling. A modified secant homogenization method is utilized in this study for simulation of inelastic behaviors of the composite microconstituents. A nonlinear homogenization method is based on a linear homogenization scheme for multilayer composites.

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“…In the present contribution, a methodology for the estimation of the anisotropic elastic behavior of single domains proposed in previous papers [1,2] is utilized for estimation of the coefficients of thermal expansion for single domains of these materials.…”

Section: Introductionmentioning

confidence: 99%

Numerical estimation of the thermal expansion of lamellar single domains in metal/ceramic composites

Stasiuk

Ziegler

Piat

et al. 2010

Proc Appl Math and Mech

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A porous ceramic preform, the pore structure of which is created via a freeze-casting technique, is infiltrated with a metal melt via sqeeze-casting. The microstructure of the obtained metal/ceramic composites has lamellar domains with geometrical characteristics which are dependent on the manufacturing parameters. The aim of our study is to predict the coefficients of thermal expansion of single domains of parallel Al 2 O 3 platelets embedded in Al. For this purpose, a homogenization procedure was employed for microstructure based finite element and micromechanical modeling.

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Elastic constants of metal/ceramic composites with lamellar microstructures: Finite element modelling and ultrasonic experiments

Cited by 42 publications

References 28 publications

A novel biomimetic approach to the design of high-performance ceramic–metal composites

A novel biomimetic approach to the design of high-performance ceramic–metal composites

Nonlinear homogenization of metal‐ceramic composites with lamellar microstructure

Numerical estimation of the thermal expansion of lamellar single domains in metal/ceramic composites

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