Fabrication, Microstructure and Mechanical Properties of TiC/Ti2AlC/TiAl3 in situ Composite

Lu Shi; Jianfeng Zhang; Lianjun Wang; Wan Jiang; Lidong Chen

doi:10.1016/S1005-0302(11)60056-X

Fabrication, Microstructure and Mechanical Properties of TiC/Ti₂AlC/TiAl₃ in situ Composite

Lu Shi, Jianfeng Zhang, Lianjun Wang, Wan Jiang, Lidong Chen

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

This paper described a process for synthesizing a new multiphase TiC/Ti₂AlC/TiAl₃ composite, in which Ti, Al₄C₃ and graphite powders were utilized as raw materials, and in situ spark plasma sintering-reactive sintering (SPS-RS) methods were involved. The intermediate phases of Ti₃Al and TiAl were found during the reactive sintering process and the reactions for the phase's formation were proposed. The microstructure and mechanical properties of the composites were investigated. The high-resolution transmission electron microscopy (HRTEM) image of the interface showed that no amorphous phases were detected along the grain boundary. The orientation relationships between the Ti₂AlC and the TiC were shown to be (0001)Ti₂AlC∥(111)TiC and [110]Ti₂AlC∥[110]TiC. The average hardness, fracture toughness, Young's modulus and bending strength of the composite were 15.1±0.8 GPa, 4.9±0.3 MPa-m^1/2, 261±13 GPa and 776±18 MPa, respectively. The toughening mechanism was also discussed.

Original language	English
Pages (from-to)	239-244
Number of pages	6
Journal	Journal of Materials Science and Technology
Volume	27
Issue number	3
DOIs	https://doi.org/10.1016/S1005-0302(11)60056-X
Publication status	Published - 2011

Keywords

Ceramic
Mechanical properties
Microstructure
Sintering

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Polymers and Plastics
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S1005-0302(11)60056-X

Cite this

@article{68cebba4db3a4729a80f5e9faee1d813,

title = "Fabrication, Microstructure and Mechanical Properties of TiC/Ti2AlC/TiAl3 in situ Composite",

abstract = "This paper described a process for synthesizing a new multiphase TiC/Ti2AlC/TiAl3 composite, in which Ti, Al4C3 and graphite powders were utilized as raw materials, and in situ spark plasma sintering-reactive sintering (SPS-RS) methods were involved. The intermediate phases of Ti3Al and TiAl were found during the reactive sintering process and the reactions for the phase's formation were proposed. The microstructure and mechanical properties of the composites were investigated. The high-resolution transmission electron microscopy (HRTEM) image of the interface showed that no amorphous phases were detected along the grain boundary. The orientation relationships between the Ti2AlC and the TiC were shown to be (0001)Ti2AlC∥(111)TiC and [110]Ti2AlC∥[110]TiC. The average hardness, fracture toughness, Young's modulus and bending strength of the composite were 15.1±0.8 GPa, 4.9±0.3 MPa-m1/2, 261±13 GPa and 776±18 MPa, respectively. The toughening mechanism was also discussed.",

keywords = "Ceramic, Mechanical properties, Microstructure, Sintering",

author = "Lu Shi and Jianfeng Zhang and Lianjun Wang and Wan Jiang and Lidong Chen",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (Nos. 50954002 and 51074054), Shanghai Rising-Star Program (No. 09QA1406600) and Shanghai Leading Academic Discipline Project (No. B603).",

year = "2011",

doi = "10.1016/S1005-0302(11)60056-X",

language = "English",

volume = "27",

pages = "239--244",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

number = "3",

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TY - JOUR

T1 - Fabrication, Microstructure and Mechanical Properties of TiC/Ti2AlC/TiAl3 in situ Composite

AU - Shi, Lu

AU - Zhang, Jianfeng

AU - Wang, Lianjun

AU - Jiang, Wan

AU - Chen, Lidong

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (Nos. 50954002 and 51074054), Shanghai Rising-Star Program (No. 09QA1406600) and Shanghai Leading Academic Discipline Project (No. B603).

PY - 2011

Y1 - 2011

N2 - This paper described a process for synthesizing a new multiphase TiC/Ti2AlC/TiAl3 composite, in which Ti, Al4C3 and graphite powders were utilized as raw materials, and in situ spark plasma sintering-reactive sintering (SPS-RS) methods were involved. The intermediate phases of Ti3Al and TiAl were found during the reactive sintering process and the reactions for the phase's formation were proposed. The microstructure and mechanical properties of the composites were investigated. The high-resolution transmission electron microscopy (HRTEM) image of the interface showed that no amorphous phases were detected along the grain boundary. The orientation relationships between the Ti2AlC and the TiC were shown to be (0001)Ti2AlC∥(111)TiC and [110]Ti2AlC∥[110]TiC. The average hardness, fracture toughness, Young's modulus and bending strength of the composite were 15.1±0.8 GPa, 4.9±0.3 MPa-m1/2, 261±13 GPa and 776±18 MPa, respectively. The toughening mechanism was also discussed.

AB - This paper described a process for synthesizing a new multiphase TiC/Ti2AlC/TiAl3 composite, in which Ti, Al4C3 and graphite powders were utilized as raw materials, and in situ spark plasma sintering-reactive sintering (SPS-RS) methods were involved. The intermediate phases of Ti3Al and TiAl were found during the reactive sintering process and the reactions for the phase's formation were proposed. The microstructure and mechanical properties of the composites were investigated. The high-resolution transmission electron microscopy (HRTEM) image of the interface showed that no amorphous phases were detected along the grain boundary. The orientation relationships between the Ti2AlC and the TiC were shown to be (0001)Ti2AlC∥(111)TiC and [110]Ti2AlC∥[110]TiC. The average hardness, fracture toughness, Young's modulus and bending strength of the composite were 15.1±0.8 GPa, 4.9±0.3 MPa-m1/2, 261±13 GPa and 776±18 MPa, respectively. The toughening mechanism was also discussed.

KW - Ceramic

KW - Mechanical properties

KW - Microstructure

KW - Sintering

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