Interface reactions occurring in metal-ceramic interpenetrating phase composites manufactured by using semi-solid forming technology

Schomer, Laura; Kütemeyer, Marius; Liewald, Mathias

doi:10.1007/s42114-020-00152-6

Cited by 12 publications

(4 citation statements)

References 17 publications

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“…As partially presented in previous work of the authors, only a few combinations of these process parameters lead to good results in terms of structural characteristics of the manufactured metal-ceramic IPC. This was demonstrated based on the respective macroscopic mould filling of the samples, the residual porosity within the composites and the integrity of the open-pore bodies [9], [11]. For the purpose of completeness, the test results obtained in these previous studies are summarized briefly in Fig.…”

Section: Experimental Investigationsmentioning

confidence: 99%

Bending Strength and Fracture Behaviour of Metal-Ceramic Interpenetrating Phase Composites Manufactured by Using Semi-Solid Forming Technology

Schomer

Riedmüller

Liewald

2022

SSP

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Interpenetrating Phase Composites (IPC) belong to a special category of composite materials, offering great potential in terms of material properties due to the continuous volume structure of both composite components. While manufacturing of metal-ceramic IPC via existing casting and infiltration processes leads to structural deficits, semi-solid forming represents a promising technology for producing IPC components without such defects. Thereby, a solid open pore body made of ceramic is infiltrated with a metallic material in the semi-solid state. Good structural characteristics of the microstructure as the integrity of the open-pore bodies after infiltration and an almost none residual porosity within the composites have already been proven for this manufacturing route within a certain process window. On this basis, the following paper focuses on the mechanical properties such as bending strength of metal-ceramic IPC produced by using semi-solid forming technology. Thereby, the impact of the significant process parameters on these properties is analysed within a suitable process window. Furthermore, a fractographic analysis is carried out by observing and interpreting the fracture behaviour during these tests and the fracture surface thereafter.

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Section: Experimental Investigationsmentioning

confidence: 99%

Bending Strength and Fracture Behaviour of Metal-Ceramic Interpenetrating Phase Composites Manufactured by Using Semi-Solid Forming Technology

Schomer

Riedmüller

Liewald

2022

SSP

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“…[1][2][3] The production of zinc alloy matrix composites with suitable reinforcement agents is an effective approach to address the above issues. [4][5][6] Interpenetrating phase composites (IPCs), [7] which possess an interconnected network structure, can effectively transfer and disperse stress between the matrix and the reinforcement phases, thereby impeding crack propagation and enhancing the mechanical properties of the composites. [8][9][10] Thanks to the favorable wetting between metal components, IPCs with intact interfaces can be easily prepared using simple techniques.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Property and Failure Mechanism of Metal Rubber/ZA8 Composite Made by Squeeze Casting Process

Lai,

Hu,

et al. 2023

Adv Eng Mater

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High‐performance lightweight composites are developed by integrating metal rubber (MR) into a zinc alloy (ZA8) matrix via squeeze casting. MR, comprising 304 stainless steel wires with diameters of 0.15 mm, forms three‐dimensional network skeletons with volume fractions of 8.8 vol.% (S1), 11.1 vol.% (S2), and 13.4 vol.% (S3), respectively. The preparation parameters of the composites are optimized, and their micro‐hardness is investigated. Special attention is paid to the ultimate compression and shear performance at 25 °C, 150 °C, and 250 °C. The microstructure and failure analysis are performed via SEM. The results reveal a 48.0% increase in micro‐hardness at composite interfaces relative to ZA8. At 25 °C, S2 possesses an ultimate compressive strength (UCS) of 401.4 MPa, which is 33.7% higher than that of ZA8. At 150 °C and 250 °C, S3 exhibits UCS values of 180.3 MPa and 74.3 MPa, exceeding those of ZA8 by 61.7% and 110.5%, respectively. Meanwhile, the ultimate shear strength of composites slightly drops below that of the matrix: the corresponding value of S1 specimen (158.4 MPa) at 250°C is 11.5% below that of ZA8. Therefore, compression and shear failure mechanisms of MR/ZA8 composites are quite intricate, involving SSW separation, necking, and ZA8 fractures.This article is protected by copyright. All rights reserved.

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“…Generally, conductors are conductive carbon materials or metals, and insulators are polymers or ceramics. Among the many options, metal-ceramics composites are ideal materials because of the different comprehensive properties of metals and ceramics, especially in electrical properties. − Compared with polymers, ceramics are mostly used in the selection of various electronic components because of their high mechanical strength and excellent chemical stability. , In particular, as a kind of multiferroic material, bismuth ferrite (BiFeO 3 , BF) exhibits ferroelectric and antiferromagnetic properties, which has always been a research hotspot. , Moreover, BF has a typical perovskite structure and high ferroelectric Curie temperature, which ensures the chemical stability of the materials in the preparation process. Meanwhile, silver (Ag) can be used as the conductive phase because of its excellent electrical conductivity and oxidative stability compared with other metals.…”

Section: Introductionmentioning

confidence: 99%

Negative Permittivity Behaviors Derived from Dielectric Resonance and Plasma Oscillation in Percolative Bismuth Ferrite/Silver Composites

Yang

Sun

et al. 2022

J. Phys. Chem. C

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Negative permittivity of materials can be obtained by plasma oscillation or dielectric resonance, but the relationship between these two negative permittivity behaviors has been neglected. Combining the advantages of two negative permittivity behaviors, the negative permittivity can be more tunable and is expected to realize epsilon-near-zero behavior. In this work, percolative bismuth ferrite/silver composites with different contents of Ag were successfully fabricated by a simple solid-state sintering method. With the addition of Ag, the Lorentz-like and Drude-like negative permittivity behaviors were successively observed in bismuth ferrite/silver composites. The reasons for the two types of negative permittivity behaviors are dielectric resonance and plasma oscillation, respectively. Further investigation revealed that the synergistic effect of dipole resonance and free electrons led to a change of resonance frequency, a decrease of magnitude, and a transition of two negative permittivity behaviors. Moreover, with the addition of Ag in percolative bismuth ferrite/silver composites, the electrical conductivity and thermal conductivity changed abruptly at a certain volume fraction, suggesting a percolation behavior.

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Interface reactions occurring in metal-ceramic interpenetrating phase composites manufactured by using semi-solid forming technology

Cited by 12 publications

References 17 publications

Bending Strength and Fracture Behaviour of Metal-Ceramic Interpenetrating Phase Composites Manufactured by Using Semi-Solid Forming Technology

Bending Strength and Fracture Behaviour of Metal-Ceramic Interpenetrating Phase Composites Manufactured by Using Semi-Solid Forming Technology

Mechanical Property and Failure Mechanism of Metal Rubber/ZA8 Composite Made by Squeeze Casting Process

Negative Permittivity Behaviors Derived from Dielectric Resonance and Plasma Oscillation in Percolative Bismuth Ferrite/Silver Composites

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