Reaction synthesis and mechanical properties of B4C-based ceramic composites

Jae Ho Han, Sang Whan Park, Young Do Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Boron carbide is a very hard material with high abrasive wear resistance. It requires a very high sintering temperature of above 2200°C to fabricate a monolithic B4C close to the theoretical density. However, the mechanical property of monolithic B4C is not good enough to use it directly to industrial applications. In this investigation, B4C based ceramic composites were fabricated by in-situ reaction hot pressing using B4C, TiC and SiC powder as starting materials. The reaction synthesized composites by hot pressing at 1950°C was found to posses very high relative density. The reaction synthesized B4C composites comprise B4C, TiB2, SiC and graphite by the reaction between TiC and B4C The newly formed TiB2 and graphite was embedded both inside grain and at grain boundary of B4C The mechanical properties of reaction synthesized B4C-TiB 2-SiC-graphite composites were more enhanced compared to those of monolithic B4C The flexural strength and fracture toughness of these in-situ B4C synthesized composites were 400-570 MPa and 6-9.5 MPam1/2, respectively.

Original languageEnglish
Title of host publicationProgress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)
Pages917-920
Number of pages4
EditionPART 2
StatePublished - 2007 Dec 1
Event2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan, Korea, Republic of
Duration: 2006 Sep 242006 Sep 28

Publication series

NameMaterials Science Forum
NumberPART 2
Volume534-536
ISSN (Print)0255-5476

Other

Other2006 Powder Metallurgy World Congress and Exhibition, PM 2006
CountryKorea, Republic of
CityBusan
Period06/09/2406/09/28

Fingerprint

mechanical properties
Graphite
ceramics
Mechanical properties
composite materials
Composite materials
synthesis
hot pressing
graphite
Hot pressing
Boron carbide
boron carbides
flexural strength
abrasives
toughness
fracture strength
wear resistance
Abrasion
Bending strength
Powders

Keywords

  • BC
  • Composite
  • Mechanical property
  • Reaction synthesis

Cite this

Han, J. H., Park, S. W., & Kim, Y. D. (2007). Reaction synthesis and mechanical properties of B4C-based ceramic composites. In Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006) (PART 2 ed., pp. 917-920). (Materials Science Forum; Vol. 534-536, No. PART 2).
Han, Jae Ho ; Park, Sang Whan ; Kim, Young Do. / Reaction synthesis and mechanical properties of B4C-based ceramic composites. Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006). PART 2. ed. 2007. pp. 917-920 (Materials Science Forum; PART 2).
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abstract = "Boron carbide is a very hard material with high abrasive wear resistance. It requires a very high sintering temperature of above 2200°C to fabricate a monolithic B4C close to the theoretical density. However, the mechanical property of monolithic B4C is not good enough to use it directly to industrial applications. In this investigation, B4C based ceramic composites were fabricated by in-situ reaction hot pressing using B4C, TiC and SiC powder as starting materials. The reaction synthesized composites by hot pressing at 1950°C was found to posses very high relative density. The reaction synthesized B4C composites comprise B4C, TiB2, SiC and graphite by the reaction between TiC and B4C The newly formed TiB2 and graphite was embedded both inside grain and at grain boundary of B4C The mechanical properties of reaction synthesized B4C-TiB 2-SiC-graphite composites were more enhanced compared to those of monolithic B4C The flexural strength and fracture toughness of these in-situ B4C synthesized composites were 400-570 MPa and 6-9.5 MPam1/2, respectively.",
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Han, JH, Park, SW & Kim, YD 2007, Reaction synthesis and mechanical properties of B4C-based ceramic composites. in Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006). PART 2 edn, Materials Science Forum, no. PART 2, vol. 534-536, pp. 917-920, 2006 Powder Metallurgy World Congress and Exhibition, PM 2006, Busan, Korea, Republic of, 06/09/24.

Reaction synthesis and mechanical properties of B4C-based ceramic composites. / Han, Jae Ho; Park, Sang Whan; Kim, Young Do.

Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006). PART 2. ed. 2007. p. 917-920 (Materials Science Forum; Vol. 534-536, No. PART 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Reaction synthesis and mechanical properties of B4C-based ceramic composites

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AU - Kim, Young Do

PY - 2007/12/1

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N2 - Boron carbide is a very hard material with high abrasive wear resistance. It requires a very high sintering temperature of above 2200°C to fabricate a monolithic B4C close to the theoretical density. However, the mechanical property of monolithic B4C is not good enough to use it directly to industrial applications. In this investigation, B4C based ceramic composites were fabricated by in-situ reaction hot pressing using B4C, TiC and SiC powder as starting materials. The reaction synthesized composites by hot pressing at 1950°C was found to posses very high relative density. The reaction synthesized B4C composites comprise B4C, TiB2, SiC and graphite by the reaction between TiC and B4C The newly formed TiB2 and graphite was embedded both inside grain and at grain boundary of B4C The mechanical properties of reaction synthesized B4C-TiB 2-SiC-graphite composites were more enhanced compared to those of monolithic B4C The flexural strength and fracture toughness of these in-situ B4C synthesized composites were 400-570 MPa and 6-9.5 MPam1/2, respectively.

AB - Boron carbide is a very hard material with high abrasive wear resistance. It requires a very high sintering temperature of above 2200°C to fabricate a monolithic B4C close to the theoretical density. However, the mechanical property of monolithic B4C is not good enough to use it directly to industrial applications. In this investigation, B4C based ceramic composites were fabricated by in-situ reaction hot pressing using B4C, TiC and SiC powder as starting materials. The reaction synthesized composites by hot pressing at 1950°C was found to posses very high relative density. The reaction synthesized B4C composites comprise B4C, TiB2, SiC and graphite by the reaction between TiC and B4C The newly formed TiB2 and graphite was embedded both inside grain and at grain boundary of B4C The mechanical properties of reaction synthesized B4C-TiB 2-SiC-graphite composites were more enhanced compared to those of monolithic B4C The flexural strength and fracture toughness of these in-situ B4C synthesized composites were 400-570 MPa and 6-9.5 MPam1/2, respectively.

KW - BC

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KW - Mechanical property

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SN - 9780878494194

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BT - Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)

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Han JH, Park SW, Kim YD. Reaction synthesis and mechanical properties of B4C-based ceramic composites. In Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006). PART 2 ed. 2007. p. 917-920. (Materials Science Forum; PART 2).