Consolidation and grain growth of tantalum diboride during spark plasma sintering

Dmytro Demirskyi; Oleg Vasylkiv

doi:10.1016/j.ceramint.2016.07.059

Consolidation and grain growth of tantalum diboride during spark plasma sintering

Dmytro Demirskyi, Oleg Vasylkiv

Advanced Institute for Materials Research (AIMR)

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

28 Citations (Scopus)

Abstract

Bulk tantalum diboride ceramics have been consolidated by spark plasma sintering (SPS) at 1700–2200 °C using moderate pressure of 30 MPa. The effect of temperature and dwell time on the densification, microstructure and mechanical properties were investigated. SPS resulted in dense, crack-free specimens with strength ranging from 280 to 550 MPa. The room-temperature strength of TaB₂ ceramics was analyzed as a function of the grain size. Activation energy for the grain growth process was estimated as 1078±31 kJ mol⁻¹.

Original language	English
Pages (from-to)	16396-16400
Number of pages	5
Journal	Ceramics International
Volume	42
Issue number	14
DOIs	https://doi.org/10.1016/j.ceramint.2016.07.059
Publication status	Published - 2016 Nov 1

Keywords

Grain growth
Microstructure
Spark plasma sintering
Strength
Tantalum diboride

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10.1016/j.ceramint.2016.07.059

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abstract = "Bulk tantalum diboride ceramics have been consolidated by spark plasma sintering (SPS) at 1700–2200 °C using moderate pressure of 30 MPa. The effect of temperature and dwell time on the densification, microstructure and mechanical properties were investigated. SPS resulted in dense, crack-free specimens with strength ranging from 280 to 550 MPa. The room-temperature strength of TaB2 ceramics was analyzed as a function of the grain size. Activation energy for the grain growth process was estimated as 1078±31 kJ mol−1.",

keywords = "Grain growth, Microstructure, Spark plasma sintering, Strength, Tantalum diboride",

author = "Dmytro Demirskyi and Oleg Vasylkiv",

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AU - Vasylkiv, Oleg

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N2 - Bulk tantalum diboride ceramics have been consolidated by spark plasma sintering (SPS) at 1700–2200 °C using moderate pressure of 30 MPa. The effect of temperature and dwell time on the densification, microstructure and mechanical properties were investigated. SPS resulted in dense, crack-free specimens with strength ranging from 280 to 550 MPa. The room-temperature strength of TaB2 ceramics was analyzed as a function of the grain size. Activation energy for the grain growth process was estimated as 1078±31 kJ mol−1.

AB - Bulk tantalum diboride ceramics have been consolidated by spark plasma sintering (SPS) at 1700–2200 °C using moderate pressure of 30 MPa. The effect of temperature and dwell time on the densification, microstructure and mechanical properties were investigated. SPS resulted in dense, crack-free specimens with strength ranging from 280 to 550 MPa. The room-temperature strength of TaB2 ceramics was analyzed as a function of the grain size. Activation energy for the grain growth process was estimated as 1078±31 kJ mol−1.

KW - Grain growth

KW - Microstructure

KW - Spark plasma sintering

KW - Strength

KW - Tantalum diboride

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JO - Ceramics International

JF - Ceramics International

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Consolidation and grain growth of tantalum diboride during spark plasma sintering

Abstract

Keywords

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