Toughening of a ZrC Particle-Reinforced Ti3AIC2 Composite

Song, Guanyu; Xu, Qiang; Sloof, Willem G.; Li, S. B.; Zwaag, Sybrand van der

doi:10.1002/9780470456361.ch4

Cited by 7 publications

(4 citation statements)

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“…The particle toughening is a general concept that refers to impending crack growth by dispersion particles such as TiC [24], Al 2 O 3 [25], ZrC [26], BN [27,28] and carbon nanotubes (CNTs) [29] etc. Unfortunately, these brittle particle reinforcements can modestly enhance the toughness of MAX phases due to lack of plasticity of ceramic particles, and the most common activated toughening mechanisms are crack deflection and crack bridging.…”

Section: Toughening In Nanolayered Max Phasesmentioning

confidence: 99%

“…ZrC particles-reinforced Ti 3 AlC 2 composites were obtained by in situ reactive hot-pressing at 1500 °C under a pressure of 30 MPa for 2 h in Ar using Ti, Al, graphite and ZrC powders as starting materials [26], and the fracture toughness of 20 vol % ZrC/Ti 3 AlC 2 composite could reach up to 11.5 ± 1.0 MPa·m 1/2 while the fracture toughness of monolithic Ti 3 AlC 2 was 7.8 ± 0.4 MPa·m 1/2 . As shown in Figure 2, the fracture toughness improvement could be ascribed to energy consuming by ZrC particles and residual stresses in the ZrC/Ti 3 AlC 2 composite derived from the cooling process in the composite preparation.…”

Section: Toughening In Nanolayered Max Phasesmentioning

confidence: 99%

“…( a ) Interface between Ti 3 AlC 2 and Zr, the inset: Backscattering image of area pointed with the white arrow; The Letters “T”, and “Z” represent Ti 3 AlC 2 , and ZrC, respectively; ( b ) A crack crossing through Ti 3 AlC 2 grain and ZrC particle [26]. …”

Section: Figurementioning

confidence: 99%

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Toughening Mechanisms in Nanolayered MAX Phase Ceramics—A Review

Chen

Bei

2017

Materials

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Advanced engineering and functional ceramics are sensitive to damage cracks, which delay the wide applications of these materials in various fields. Ceramic composites with enhanced fracture toughness may trigger a paradigm for design and application of the brittle components. This paper reviews the toughening mechanisms for the nanolayered MAX phase ceramics. The main toughening mechanisms for these ternary compounds were controlled by particle toughening, phase-transformation toughening and fiber-reinforced toughening, as well as texture toughening. Based on the various toughening mechanisms in MAX phase, models of SiC particles and fibers toughening Ti3SiC2 are established to predict and explain the toughening mechanisms. The modeling work provides insights and guidance to fabricate MAX phase-related composites with optimized microstructures in order to achieve the desired mechanical properties required for harsh application environments.

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Section: Toughening In Nanolayered Max Phasesmentioning

confidence: 99%

Section: Toughening In Nanolayered Max Phasesmentioning

confidence: 99%

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Toughening Mechanisms in Nanolayered MAX Phase Ceramics—A Review

Chen

Bei

2017

Materials

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“…WANG et al [6] prepared Al 2 O 3 /Ti 3 AlC 2 composites by hot-pressed at 1200 °C. Song et al [7] prepared ZrC/Ti 3 AlC 2 composite via a solid-liquid reactive hot-pressing method, and the fracture toughness was 11.5 MPa•m 1/2 . Li et al [8,9] prepared Ti 3 AlC 2 /TiB 2 composite by means of in situ reaction.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of TiC/Ti3AlC2 In Situ Composites Prepared by Hot Pressing Method

Ruan

Feng

et al. 2015

MSF

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TiC/Ti3AlC2 composites were successfully prepared by hot-pressing sintering method from the elemental powder mixtures of Ti, Al and TiC. A possible reaction mechanism was investigated by XRD. The density, Vickers hardness, flexural strength, and fracture toughness of the TiC/Ti3AlC2 composites were also measured. At 660 °C, Al melted and reacted with Ti to form TiAl3. At 900 °C, TiAl3 reacted with TiC and Ti to form Ti2AlC. At 1100 °C, Ti2AlC reacted with TiC to form Ti3AlC2. Increasing the sintering temperature, the content of Ti3AlC2 increased. The TiC/Ti3AlC2 composites had excellent performance after sintered at 1100 °C, the density, Vickers hardness, flexural strength and fracture toughness of the composite were 4.35 g/cm3, 4.72 GPa, 566 MPa and 6.18 MPa·m1/2, respectively.

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MAX Phases as Nanolaminate Materials: Chemical Composition, Microstructure, Synthesis, Properties, and Applications

Xia

2021

Adv Eng Mater

101

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Ceramics is one of the oldest materials prepared and used by human beings. Ancient ancestors started to make pottery by forming and burning clay since the earliest civilizations. Ancient people started to fabricate burnt claywares since %6500 B.C., and clayware as a commercial product was available by %4000 B.C. [1] In modern society, as one of the largest branches in material family, ceramics have been developed and used in almost every fields of human beings' lives. In some senses, ceramics and metals possess complementary properties; generally, ceramics show the advantages of high strength, high hardness, high chemical stability, high wear resistance, whereas ceramics typically show intrinsic brittleness and poor plasticity due to their covalent and/or ionic chemical bonding; metals have good plasticity, high toughness, and high thermal and electronic conductivity; however, they typically show lower chemical stability and lower hardness than ceramics. It would be marvelous for a material to combine the properties of ceramics and metals. MAX phases are the materials that meet the challenge.MAX phases are a family of nanolaminate ternary nitrides and carbides, which were first discovered by Nowotny and his colleagues in Vienna. [2] In the beginning, MAX phases have a general formula of M nþ1 AX n (n ¼ 1-3), where M is a transition metal, A is an element from group A, and X is either carbon or nitrogen. The n value could be 1, 2, or 3, and the phases are named as 211, 312, and 413 MAX phases, respectively. These MAX phases show a hexagonal crystal structure (P63/mmc), consisting of M 6 X octahedra separated by A atomic layers. [3] M─X bonds in M 6 X octahedra are strong covalent bonds, whereas the M─A bonds between M 6 X and A atomic layer are much weaker, especially in shear. This unique bonding structure is analogous to graphite, and it is the special bonding structure that endows MAX phases properties of both ceramics and metals. On the one hand, MAX phases are stiff, lightweight, chemically stable, and oxidation resistant, which are the features of ceramics; on the other hand, they exhibit good electric and thermal conductivity as well as excellent machinability and damage tolerance, which are the features of metals.Unfortunately, MAX phases had not attracted enough attention in both academia and industry until 1996 when Barsoum et al. [4] synthesized and characterized Ti 3 SiC 2 . Ever since then, material researchers become more interested in this material. [5] In the past two decades, many MAX phases have been synthesized and tested to show highly unusual properties, [6] which will be discussed with detail in the following sections. The intensive extent of the researches on MAX phases can be demonstrated by the published papers (Figure 1). A remarkable jump can be observed between 1998 and 1999, and after that, the number of published papers increases steadily, reaching as high as 980 papers in 2019 (Figure 1a). From another aspect, the citation of the milestone paper published by Barsoum [4] also signific...

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Toughening of a ZrC Particle-Reinforced Ti3AIC2 Composite

Cited by 7 publications

References 0 publications

Toughening Mechanisms in Nanolayered MAX Phase Ceramics—A Review

Toughening Mechanisms in Nanolayered MAX Phase Ceramics—A Review

Microstructure and Mechanical Properties of TiC/Ti<sub>3</sub>AlC<sub>2</sub> <i>In Situ</i> Composites Prepared by Hot Pressing Method

MAX Phases as Nanolaminate Materials: Chemical Composition, Microstructure, Synthesis, Properties, and Applications

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