B₄C-CNT Produced by Spark Plasma Sintering

• Authors: B. Apak , F. Sahin
• Languages of publication: EN

Abstracts

EN

H.C. Starck HS Grade boron carbide (B₄C) powders with multi-walled carbon nanotube (CNT) were sintered by Spark Plasma Sintering (SPS) method in a vacuum atmosphere to obtain highly dense and fine grained final ceramic products. Powder mixtures were densified by SPS at 1650 and 1725°C using 40 MPa pressure for 5 min. The effects of heating rate, spark plasma sintering temperature and CNT additive on density, hardness, fracture toughness and microstructures of B₄C-CNT samples are investigated. Density measurements were carried out using Archimedes method. Hardness and fracture toughness were examined by Vickers indentation technique. Scanning Electron Microscope (SEM) was used to observe microstructural investigation.

Keywords

EN

81.20.Ev; 81.05.Je; 81.05.U-; 88.30.rh

Discipline

• 81.05.U-: Carbon/carbon-based materials(for carbon-based superconductors, see 74.70.Wz)
• 81.05.Je: Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides)(for ceramics in electrochemistry, see 82.45.Yz)
• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
• 88.30.rh: Carbon nanotubes

• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 4
• Pages: 1029-1031

Dates

published

2015-04

Contributors

author

B. Apak

• Istanbul Technical University, Metallurgical and Materials Engineering Department, 34469 Maslak, Istanbul, Turkey

author

F. Sahin

• Istanbul Technical University, Metallurgical and Materials Engineering Department, 34469 Maslak, Istanbul, Turkey

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Identifiers

DOI

10.12693/APhysPolA.127.1029