Boron carbide B4C ceramics with enhanced physico-mechanical properties sintered from multimodal powder of plasma dynamic synthesis

Результат исследований: Материалы для журналаСтатья

Выдержка

Boron carbide B4C as one of the hardest materials known is of a great scientific interest for years due to a unique combination of different useful properties. The ceramics on its basis has many prospective applications. However, the widespread usage of this ceramics is limited due to the relatively low fracture toughness as well as the poor sinterability. This work shows the possibility to obtain the ceramics with enhanced physico-mechanical properties based on the powdered boron carbide B4C prepared by a plasma dynamic method. The key features of this powdered material are a single-crystalline particle structure and their multimodal distribution from several nanometers to several micrometers that is confirmed by the results of both scanning and transmission electron microscopy. Sintering the ceramics based on the as-prepared B4C powder by SPS technology at the temperature of 1950 °C, pressure of 60 MPa and time exposure of 5 min allows not only achieving the expected values of ceramics density (~99% relative to the theoretical one) but also the high hardness (~37 GPa) and fracture toughness (6.7 ± 0.3 MPa·m1/2).

Язык оригиналаАнглийский
Страницы (с-по)85-91
Число страниц7
ЖурналInternational Journal of Refractory Metals and Hard Materials
Том78
DOI
СостояниеОпубликовано - 1 янв 2019

Отпечаток

Boron carbide
Powders
Fracture toughness
Plasmas
Mechanical properties
Sintering
Hardness
Crystalline materials
Transmission electron microscopy
Scanning electron microscopy
Temperature

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Цитировать

Boron carbide B4C ceramics with enhanced physico-mechanical properties sintered from multimodal powder of plasma dynamic synthesis. / Sivkov, Alexander; Rakhmatullin, Iliyas; Shanenkov, Ivan; Shanenkova, Yuliya.

В: International Journal of Refractory Metals and Hard Materials, Том 78, 01.01.2019, стр. 85-91.

Результат исследований: Материалы для журналаСтатья

@article{b8e293a443394c88b296032bdd96c8cf,
title = "Boron carbide B4C ceramics with enhanced physico-mechanical properties sintered from multimodal powder of plasma dynamic synthesis",
abstract = "Boron carbide B4C as one of the hardest materials known is of a great scientific interest for years due to a unique combination of different useful properties. The ceramics on its basis has many prospective applications. However, the widespread usage of this ceramics is limited due to the relatively low fracture toughness as well as the poor sinterability. This work shows the possibility to obtain the ceramics with enhanced physico-mechanical properties based on the powdered boron carbide B4C prepared by a plasma dynamic method. The key features of this powdered material are a single-crystalline particle structure and their multimodal distribution from several nanometers to several micrometers that is confirmed by the results of both scanning and transmission electron microscopy. Sintering the ceramics based on the as-prepared B4C powder by SPS technology at the temperature of 1950 °C, pressure of 60 MPa and time exposure of 5 min allows not only achieving the expected values of ceramics density (~99{\%} relative to the theoretical one) but also the high hardness (~37 GPa) and fracture toughness (6.7 ± 0.3 MPa·m1/2).",
keywords = "Boron carbide BC, Ceramics, Multimodal powder, Physico-mechanical properties, Plasma dynamic synthesis",
author = "Alexander Sivkov and Iliyas Rakhmatullin and Ivan Shanenkov and Yuliya Shanenkova",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.ijrmhm.2018.09.003",
language = "English",
volume = "78",
pages = "85--91",
journal = "International Journal of Refractory Metals and Hard Materials",
issn = "0958-0611",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Boron carbide B4C ceramics with enhanced physico-mechanical properties sintered from multimodal powder of plasma dynamic synthesis

AU - Sivkov, Alexander

AU - Rakhmatullin, Iliyas

AU - Shanenkov, Ivan

AU - Shanenkova, Yuliya

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Boron carbide B4C as one of the hardest materials known is of a great scientific interest for years due to a unique combination of different useful properties. The ceramics on its basis has many prospective applications. However, the widespread usage of this ceramics is limited due to the relatively low fracture toughness as well as the poor sinterability. This work shows the possibility to obtain the ceramics with enhanced physico-mechanical properties based on the powdered boron carbide B4C prepared by a plasma dynamic method. The key features of this powdered material are a single-crystalline particle structure and their multimodal distribution from several nanometers to several micrometers that is confirmed by the results of both scanning and transmission electron microscopy. Sintering the ceramics based on the as-prepared B4C powder by SPS technology at the temperature of 1950 °C, pressure of 60 MPa and time exposure of 5 min allows not only achieving the expected values of ceramics density (~99% relative to the theoretical one) but also the high hardness (~37 GPa) and fracture toughness (6.7 ± 0.3 MPa·m1/2).

AB - Boron carbide B4C as one of the hardest materials known is of a great scientific interest for years due to a unique combination of different useful properties. The ceramics on its basis has many prospective applications. However, the widespread usage of this ceramics is limited due to the relatively low fracture toughness as well as the poor sinterability. This work shows the possibility to obtain the ceramics with enhanced physico-mechanical properties based on the powdered boron carbide B4C prepared by a plasma dynamic method. The key features of this powdered material are a single-crystalline particle structure and their multimodal distribution from several nanometers to several micrometers that is confirmed by the results of both scanning and transmission electron microscopy. Sintering the ceramics based on the as-prepared B4C powder by SPS technology at the temperature of 1950 °C, pressure of 60 MPa and time exposure of 5 min allows not only achieving the expected values of ceramics density (~99% relative to the theoretical one) but also the high hardness (~37 GPa) and fracture toughness (6.7 ± 0.3 MPa·m1/2).

KW - Boron carbide BC

KW - Ceramics

KW - Multimodal powder

KW - Physico-mechanical properties

KW - Plasma dynamic synthesis

UR - http://www.scopus.com/inward/record.url?scp=85052987902&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85052987902&partnerID=8YFLogxK

U2 - 10.1016/j.ijrmhm.2018.09.003

DO - 10.1016/j.ijrmhm.2018.09.003

M3 - Article

VL - 78

SP - 85

EP - 91

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

SN - 0958-0611

ER -