Low temperature spark plasma sintering of Al2O3-TiC composites

S. Meir; S. Kalabukhov; S. Hayun

doi:10.1016/j.ceramint.2014.04.059

Low temperature spark plasma sintering of Al₂O₃-TiC composites

S. Meir, S. Kalabukhov, S. Hayun

Department of Materials Engineering

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

20 Scopus citations

Abstract

Al₂O₃-TiC composites were fabricated using spark plasma sintering (SPS) technology between 1300 °C and 1500 °C. The composite densification process starts at 950 °C, with a maximum densification rate at 1170 °C. After thirty minutes soaking at 1400 °C, a relative density of 99.5% was achieved. Microstructure analysis reveals a submicron Al₂O₃ grain size and homogenous distribution of titanium carbide in the matrix. The fully dense Al₂O₃-20 wt% TiC composite exhibits high values of fracture toughness (8.3 MPa m ^1/2), Young's modulus (406 GPa), flexural strength (850 MPa) and hardness (21 GPa).

Original language	English
Pages (from-to)	12187-12192
Number of pages	6
Journal	Ceramics International
Volume	40
Issue number	8 PART A
DOIs	https://doi.org/10.1016/j.ceramint.2014.04.059
State	Published - 1 Jan 2014

Keywords

Aluminum oxide
Ceramic composite
Spark plasma sintering (SPS)
Titanium carbide

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2014.04.059

Cite this

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title = "Low temperature spark plasma sintering of Al2O3-TiC composites",

abstract = "Al2O3-TiC composites were fabricated using spark plasma sintering (SPS) technology between 1300 °C and 1500 °C. The composite densification process starts at 950 °C, with a maximum densification rate at 1170 °C. After thirty minutes soaking at 1400 °C, a relative density of 99.5% was achieved. Microstructure analysis reveals a submicron Al2O3 grain size and homogenous distribution of titanium carbide in the matrix. The fully dense Al2O3-20 wt% TiC composite exhibits high values of fracture toughness (8.3 MPa m 1/2), Young's modulus (406 GPa), flexural strength (850 MPa) and hardness (21 GPa).",

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AU - Meir, S.

AU - Kalabukhov, S.

AU - Hayun, S.

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N2 - Al2O3-TiC composites were fabricated using spark plasma sintering (SPS) technology between 1300 °C and 1500 °C. The composite densification process starts at 950 °C, with a maximum densification rate at 1170 °C. After thirty minutes soaking at 1400 °C, a relative density of 99.5% was achieved. Microstructure analysis reveals a submicron Al2O3 grain size and homogenous distribution of titanium carbide in the matrix. The fully dense Al2O3-20 wt% TiC composite exhibits high values of fracture toughness (8.3 MPa m 1/2), Young's modulus (406 GPa), flexural strength (850 MPa) and hardness (21 GPa).

AB - Al2O3-TiC composites were fabricated using spark plasma sintering (SPS) technology between 1300 °C and 1500 °C. The composite densification process starts at 950 °C, with a maximum densification rate at 1170 °C. After thirty minutes soaking at 1400 °C, a relative density of 99.5% was achieved. Microstructure analysis reveals a submicron Al2O3 grain size and homogenous distribution of titanium carbide in the matrix. The fully dense Al2O3-20 wt% TiC composite exhibits high values of fracture toughness (8.3 MPa m 1/2), Young's modulus (406 GPa), flexural strength (850 MPa) and hardness (21 GPa).

KW - Aluminum oxide

KW - Ceramic composite

KW - Spark plasma sintering (SPS)

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