Analysis of the high-temperature flexural strength behavior of B4C–TaB2 eutectic composites produced by in situ spark plasma sintering

Dmytro Demirskyi; Oleg Vasylkiv

doi:10.1016/j.msea.2017.04.093

Analysis of the high-temperature flexural strength behavior of B₄C–TaB₂ eutectic composites produced by in situ spark plasma sintering

Dmytro Demirskyi, Oleg Vasylkiv

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

6 Citations (Scopus)

Abstract

In this study, flexural strength measurements and microstructural studies have been combined to evaluate the effect of elevated temperatures on the fracture behavior of B₄C–TaB₂ ceramic composites that have a eutectic structure. Mechanical characterization was carried out at 1600 °C, 1800 °C and 2000 °C. The B₄C–TaB₂ eutectic composites were prepared in situ using a spark plasma sintering technique. The eutectic composites exhibited strengths of 483±17 MPa and 525±12 MPa at 1600 °C and 1800 °C, respectively, which is higher than the strength of 430±25 MPa measured at room temperature. The flexural strength of the B₄C–TaB₂ eutectic composites was 511±16 MPa at 2000 °C (i.e. 0.86 of the melting point of the B₄C–TaB₂ eutectic), indicating plastic behavior. Analyses of the high-temperature flexural strength behavior of this non-oxide eutectic are reported.

Original language	English
Pages (from-to)	71-78
Number of pages	8
Journal	Materials Science and Engineering A
Volume	697
DOIs	https://doi.org/10.1016/j.msea.2017.04.093
Publication status	Published - 2017 Jun 14
Externally published	Yes

Keywords

Boron carbide
Eutectic composite
High-temperature strength
Spark plasma sintering
Tantalum diboride

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.msea.2017.04.093

Fingerprint Dive into the research topics of 'Analysis of the high-temperature flexural strength behavior of B<sub>4</sub>C–TaB<sub>2</sub> eutectic composites produced by in situ spark plasma sintering'. Together they form a unique fingerprint.

Cite this

@article{e38cee09c5ab46c781fd69baa8b439a1,

title = "Analysis of the high-temperature flexural strength behavior of B4C–TaB2 eutectic composites produced by in situ spark plasma sintering",

abstract = "In this study, flexural strength measurements and microstructural studies have been combined to evaluate the effect of elevated temperatures on the fracture behavior of B4C–TaB2 ceramic composites that have a eutectic structure. Mechanical characterization was carried out at 1600 °C, 1800 °C and 2000 °C. The B4C–TaB2 eutectic composites were prepared in situ using a spark plasma sintering technique. The eutectic composites exhibited strengths of 483±17 MPa and 525±12 MPa at 1600 °C and 1800 °C, respectively, which is higher than the strength of 430±25 MPa measured at room temperature. The flexural strength of the B4C–TaB2 eutectic composites was 511±16 MPa at 2000 °C (i.e. 0.86 of the melting point of the B4C–TaB2 eutectic), indicating plastic behavior. Analyses of the high-temperature flexural strength behavior of this non-oxide eutectic are reported.",

keywords = "Boron carbide, Eutectic composite, High-temperature strength, Spark plasma sintering, Tantalum diboride",

author = "Dmytro Demirskyi and Oleg Vasylkiv",

year = "2017",

month = jun,

day = "14",

doi = "10.1016/j.msea.2017.04.093",

language = "English",

volume = "697",

pages = "71--78",

journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",

issn = "0921-5093",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Analysis of the high-temperature flexural strength behavior of B4C–TaB2 eutectic composites produced by in situ spark plasma sintering

AU - Demirskyi, Dmytro

AU - Vasylkiv, Oleg

PY - 2017/6/14

Y1 - 2017/6/14

N2 - In this study, flexural strength measurements and microstructural studies have been combined to evaluate the effect of elevated temperatures on the fracture behavior of B4C–TaB2 ceramic composites that have a eutectic structure. Mechanical characterization was carried out at 1600 °C, 1800 °C and 2000 °C. The B4C–TaB2 eutectic composites were prepared in situ using a spark plasma sintering technique. The eutectic composites exhibited strengths of 483±17 MPa and 525±12 MPa at 1600 °C and 1800 °C, respectively, which is higher than the strength of 430±25 MPa measured at room temperature. The flexural strength of the B4C–TaB2 eutectic composites was 511±16 MPa at 2000 °C (i.e. 0.86 of the melting point of the B4C–TaB2 eutectic), indicating plastic behavior. Analyses of the high-temperature flexural strength behavior of this non-oxide eutectic are reported.

AB - In this study, flexural strength measurements and microstructural studies have been combined to evaluate the effect of elevated temperatures on the fracture behavior of B4C–TaB2 ceramic composites that have a eutectic structure. Mechanical characterization was carried out at 1600 °C, 1800 °C and 2000 °C. The B4C–TaB2 eutectic composites were prepared in situ using a spark plasma sintering technique. The eutectic composites exhibited strengths of 483±17 MPa and 525±12 MPa at 1600 °C and 1800 °C, respectively, which is higher than the strength of 430±25 MPa measured at room temperature. The flexural strength of the B4C–TaB2 eutectic composites was 511±16 MPa at 2000 °C (i.e. 0.86 of the melting point of the B4C–TaB2 eutectic), indicating plastic behavior. Analyses of the high-temperature flexural strength behavior of this non-oxide eutectic are reported.

KW - Boron carbide

KW - Eutectic composite

KW - High-temperature strength

KW - Spark plasma sintering

KW - Tantalum diboride

UR - http://www.scopus.com/inward/record.url?scp=85018782898&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85018782898&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2017.04.093

DO - 10.1016/j.msea.2017.04.093

M3 - Article

AN - SCOPUS:85018782898

VL - 697

SP - 71

EP - 78

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

ER -