Microstructure and Mechanical Properties of TiC/Ti&lt;sub&gt;3&lt;/sub&gt;AlC&lt;sub&gt;2&lt;/sub&gt; &lt;i&gt;In Situ&lt;/i&gt; Composites Prepared by Hot Pressing Method

Ruan, Miao; Feng, Xiao Ming; Ai, Tao; Ning, Yu; Kui, Hua

doi:10.4028/www.scientific.net/msf.816.200

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…Due to the fact that the MAX-phase has a layered structure, and its high-temperature molding is impossible due to decomposition processes, products from the MAX-phase are predominantly porous. Using MAX-phase as a component in ceramic composites may be one of the ways to improve MAX-phase high-temperature stability [21,22].…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using Fused Granules Fabrication Technique

Krinitcyn,

Kopytov,

Ryumin

2024

Preprint

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In this work SiC-Ti3AlC2 and TiC-Ti3AlC2 composites produced by additive manufacturing are investigated. The fused granules fabrication (FGF) method as one of the material extrusion additive manufacturing (MEAM) technology is used to obtain composite samples. Composites with different ratios between components and different powder:polymer ratios are investigated. The technological features of the additive formation of composites are investigated, as well as their structure and properties. The optimal sintering temperature to form the best mechanical properties for both composites is 1300 °C. The composites have a regulatable porosity. Ti3AlC2 content, sintering temperature, and polymer content in the feedstock are the main parameters that regulates the porosity of FGF samples.

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Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using Fused Granules Fabrication Technique

Krinitcyn,

Kopytov,

Ryumin

2024

Preprint

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“…Due to the fact that the MAX phase has a layered structure and its high-temperature molding is impossible due to decomposition processes, products from the MAX phase are predominantly porous. Using the MAX phase as a component in ceramic composites may be one of the ways to improve MAX phase high-temperature stability [20,21].…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using the Fused Granules Fabrication Technique

Krinitcyn,

Kopytov,

Ryumin

2024

JMMP

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In this work, SiC–Ti3AlC2 and TiC–Ti3AlC2 composites produced by additive manufacturing are investigated. The issue of obtaining ceramic materials using additive manufacturing technologies is currently relevant, since not many modern additive technologies are suitable for working with ceramic materials. The study is devoted to the optimization of additive manufacturing parameters, as well as the study of the structure and properties of the resulting objects. The fused granules fabrication (FGF) method as one kind of the material extrusion additive manufacturing (MEAM) technology is used to obtain composite samples. The main advantage of the FGF technology is the ability to obtain high-quality samples from ceramic materials by additive manufacturing. Composites with different ratios between components and different powder/polymer ratios are investigated. The technological features of the additive formation of composites are investigated, as well as their structure and properties. The optimal sintering temperature to form the best mechanical properties for both composites is 1300 °C. The composites have a regulatable porosity. Ti3AlC2 content, sintering temperature, and polymer content in the feedstock are the main parameters that regulate the porosity of FGF samples.

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“…In the Ti 3 AlC 2 MAX phases, Ti and Al react first to form a Ti-Al intermetallic compound during the reaction, and after Ti and C react to form TiC X , the MAX phases are formed by the reaction of an intermetallic compound and TiC X . However, each researcher reported that intermetallic compounds, such as Ti 3 Al, 30,31 TiAl, 32,33 and TiAl 3 , [34][35][36] are generated when Ti and Al react. It has yet to be clarified whether the phase acts as an intermediate phase of the MAX phases and which phase occurrence favors the formation of the MAX phases.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and reaction path of Ti‐Al‐C MAX phases by reaction with Ti‐Al intermetallic compounds and TiC

et al. 2023

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In this study, it was verified that the synthesis of Ti‐Al‐C MAX phases has advantages when using intermetallic compounds rather than using only elemental powders. The formation behavior of the MAX phases was presented through diffusion experiments. In the case of using elemental powder, Ti2AlC is produced at 1300°C, and Ti3AlC2 is produced at 1400°C. When intermetallic compounds are used, Ti2AlC is produced at 1000°C, and Ti3AlC2 is produced at 1300°C. In the case of the elemental powder, it is verified that Ti3AlC2 content is decreased and Ti2AlC is increased when heat treatment is performed at 1400°C for 3 h. Rather Ti3AlC2 content is increased when intermetallic compounds are used. When an intermetallic compound is used, synthesis occurs more actively at high temperatures, and the tendency to be thermally decomposed can be prevented. When TiAl and TiC are heat treated, Al of the intermetallic compound is diffused into TiC, and C of TiC is diffused into the intermetallic compound. Furthermore, there are many two‐dimensional defects in TiAl, which act as a C diffusion channel. C diffuses into TiAl to produce TiCX, and the MAX phases is generated by the short‐range diffusion of Al. At the region of TiC, TiC transforms into TiCX after C diffuses into TiAl, which consequently structure of TiC changes from cubic to hexagonal. This is the same crystal structure as the MAX phases, and it is confirmed that the (110) surface is maintained. A Ti‐C layer structure of the (110) surface is maintained, and it was determined that Al is diffused during this time to generate the MAX phases.

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

Cited by 9 publications

References 13 publications

Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using Fused Granules Fabrication Technique

Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using Fused Granules Fabrication Technique

Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using the Fused Granules Fabrication Technique

Synthesis and reaction path of Ti‐Al‐C MAX phases by reaction with Ti‐Al intermetallic compounds and TiC

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