Densification behavior and mechanical properties of the spark plasma sintered monolithic TiB2 ceramics

Z. H. Zhang; X. B. Shen; F. C. Wang; S. K. Lee; L. Wang

doi:10.1016/j.msea.2010.05.086

Densification behavior and mechanical properties of the spark plasma sintered monolithic TiB₂ ceramics

Z. H. Zhang^*, X. B. Shen, F. C. Wang, S. K. Lee, L. Wang

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

93 Citations (Scopus)

Abstract

Monolithic TiB₂ ceramics with fine-grained microstructures and good mechanical properties were synthesized by spark plasma sintering (SPS) technique under a pressure of 50MPa, with heating rate of 150°C/min, and sintering temperature ranging from 1200°C to 1800°C. Microstructures, mechanical properties, and densification behavior of the ceramics were investigated. Results indicate that TiB₂ ceramics sintered at 1800°C provide the optimal combination of dense microstructure and excellent properties, including the relative density of 97.6%, the microhardness of 29.6±2.5GPa, the flexural strength of 538±45MPa, and the fracture toughness of 5.2±0.4MPam^1/2. The dense microstructure is the main factor to improve the mechanical properties of the TiB₂ ceramics synthesized by SPS process.

Original language	English
Pages (from-to)	5947-5951
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	527
Issue number	21-22
DOIs	https://doi.org/10.1016/j.msea.2010.05.086
Publication status	Published - Aug 2010

Keywords

Mechanical properties
Microstructures
Spark plasma sintering
TiB ceramic

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10.1016/j.msea.2010.05.086

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abstract = "Monolithic TiB2 ceramics with fine-grained microstructures and good mechanical properties were synthesized by spark plasma sintering (SPS) technique under a pressure of 50MPa, with heating rate of 150°C/min, and sintering temperature ranging from 1200°C to 1800°C. Microstructures, mechanical properties, and densification behavior of the ceramics were investigated. Results indicate that TiB2 ceramics sintered at 1800°C provide the optimal combination of dense microstructure and excellent properties, including the relative density of 97.6%, the microhardness of 29.6±2.5GPa, the flexural strength of 538±45MPa, and the fracture toughness of 5.2±0.4MPam1/2. The dense microstructure is the main factor to improve the mechanical properties of the TiB2 ceramics synthesized by SPS process.",

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AU - Zhang, Z. H.

AU - Shen, X. B.

AU - Wang, F. C.

AU - Lee, S. K.

AU - Wang, L.

PY - 2010/8

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N2 - Monolithic TiB2 ceramics with fine-grained microstructures and good mechanical properties were synthesized by spark plasma sintering (SPS) technique under a pressure of 50MPa, with heating rate of 150°C/min, and sintering temperature ranging from 1200°C to 1800°C. Microstructures, mechanical properties, and densification behavior of the ceramics were investigated. Results indicate that TiB2 ceramics sintered at 1800°C provide the optimal combination of dense microstructure and excellent properties, including the relative density of 97.6%, the microhardness of 29.6±2.5GPa, the flexural strength of 538±45MPa, and the fracture toughness of 5.2±0.4MPam1/2. The dense microstructure is the main factor to improve the mechanical properties of the TiB2 ceramics synthesized by SPS process.

AB - Monolithic TiB2 ceramics with fine-grained microstructures and good mechanical properties were synthesized by spark plasma sintering (SPS) technique under a pressure of 50MPa, with heating rate of 150°C/min, and sintering temperature ranging from 1200°C to 1800°C. Microstructures, mechanical properties, and densification behavior of the ceramics were investigated. Results indicate that TiB2 ceramics sintered at 1800°C provide the optimal combination of dense microstructure and excellent properties, including the relative density of 97.6%, the microhardness of 29.6±2.5GPa, the flexural strength of 538±45MPa, and the fracture toughness of 5.2±0.4MPam1/2. The dense microstructure is the main factor to improve the mechanical properties of the TiB2 ceramics synthesized by SPS process.

KW - Mechanical properties

KW - Microstructures

KW - Spark plasma sintering

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Densification behavior and mechanical properties of the spark plasma sintered monolithic TiB₂ ceramics

Abstract

Keywords

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