Synthesis, microstructure and mechanical properties of ZrB 2 ceramic prepared by mechanical alloying and spark plasma sintering

Chun Feng Hu, Yoshio Sakka, Tetsuo Uchikoshi, Tohru Suzuki, Byung Koog Jang, Salvatore Grasso, Gustavo Suarez

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

3 Citations (Scopus)

Abstract

Dense bulk ZrB 2 ceramic was synthesized by mechanical alloying (MA) and followed spark plasma sintering (SPS) using zirconium and boron as initial materials. It was found that MA process was effective to fragment the coarse metal zirconium particles from 45 μm to less than 1 ?m within 20 hours. In comparison with the commercial ZrB 2 powder, the as-obtained zirconium and boron mixture powders showed higher sinterability. When the sintering was carried out at 1800°C, the relative density of synthesized ZrB 2 samples using mixture powder was above 95%, higher than that of ZrB 2 sample prepared using commercial powder (73%). Vickers hardness of those ZrB 2 samples was at the same level of 15 GPa. However, the fracture toughness of ZrB 2 samples seemed to depend on the heating rate of the SPS process. Corresponding to the heating rates of 10, 50, and 100°C/min, the fracture toughness of as-prepared ZrB 2 samples were 3.83, 3.19, and 2.74 MPa·m 1/2 , respectively.

Original languageEnglish
Title of host publicationHigh-Performance Ceramics VI
Pages165-168
Number of pages4
DOIs
Publication statusPublished - 2010 Aug 16
Externally publishedYes
Event6th China International Conference on High-Performance Ceramics, CICC-6 - Harbin, China
Duration: 2009 Aug 162009 Aug 19

Publication series

NameKey Engineering Materials
Volume434-435
ISSN (Print)1013-9826

Conference

Conference6th China International Conference on High-Performance Ceramics, CICC-6
CountryChina
CityHarbin
Period09/8/1609/8/19

Fingerprint

Spark plasma sintering
Mechanical alloying
Powders
Zirconium
Mechanical properties
Microstructure
Boron
Heating rate
Fracture toughness
Vickers hardness
Sintering
Metals

Keywords

  • Boron
  • Mechanical alloying
  • Spark plasma sintering
  • Zirconium
  • ZrB

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Hu, C. F., Sakka, Y., Uchikoshi, T., Suzuki, T., Jang, B. K., Grasso, S., & Suarez, G. (2010). Synthesis, microstructure and mechanical properties of ZrB 2 ceramic prepared by mechanical alloying and spark plasma sintering In High-Performance Ceramics VI (pp. 165-168). (Key Engineering Materials; Vol. 434-435). https://doi.org/10.4028/www.scientific.net/KEM.434-435.165

Synthesis, microstructure and mechanical properties of ZrB 2 ceramic prepared by mechanical alloying and spark plasma sintering . / Hu, Chun Feng; Sakka, Yoshio; Uchikoshi, Tetsuo; Suzuki, Tohru; Jang, Byung Koog; Grasso, Salvatore; Suarez, Gustavo.

High-Performance Ceramics VI. 2010. p. 165-168 (Key Engineering Materials; Vol. 434-435).

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

Hu, CF, Sakka, Y, Uchikoshi, T, Suzuki, T, Jang, BK, Grasso, S & Suarez, G 2010, Synthesis, microstructure and mechanical properties of ZrB 2 ceramic prepared by mechanical alloying and spark plasma sintering in High-Performance Ceramics VI. Key Engineering Materials, vol. 434-435, pp. 165-168, 6th China International Conference on High-Performance Ceramics, CICC-6, Harbin, China, 09/8/16. https://doi.org/10.4028/www.scientific.net/KEM.434-435.165
Hu CF, Sakka Y, Uchikoshi T, Suzuki T, Jang BK, Grasso S et al. Synthesis, microstructure and mechanical properties of ZrB 2 ceramic prepared by mechanical alloying and spark plasma sintering In High-Performance Ceramics VI. 2010. p. 165-168. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.434-435.165
Hu, Chun Feng ; Sakka, Yoshio ; Uchikoshi, Tetsuo ; Suzuki, Tohru ; Jang, Byung Koog ; Grasso, Salvatore ; Suarez, Gustavo. / Synthesis, microstructure and mechanical properties of ZrB 2 ceramic prepared by mechanical alloying and spark plasma sintering High-Performance Ceramics VI. 2010. pp. 165-168 (Key Engineering Materials).
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