Mechanical properties of ZrB2-based ceramics reinforced by nano-SiC whiskers

Hailong Wang; Chang An Wang; Rui Zhang; Xing Hu; Daining Fang

doi:10.4028/0-87849-456-1.1564

Mechanical properties of ZrB₂-based ceramics reinforced by nano-SiC whiskers

Hailong Wang^*, Chang An Wang, Rui Zhang, Xing Hu, Daining Fang

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

In this paper, ZrB₂-based ceramics containing up to 15 vol% nano-SiC whiskers were prepared by hot pressing at 1950°C under 20MPa pressure in flow argon. SEM and XRD techniques were used to characterize the sintered compacts. A fine and homogeneous microstructure was observed. The relative density of ZrB2-based ceramic containing 10vol% SiC whiskers reached to 97.7%. The bending strength and fracture toughness of the composite were 550 MPa and 8.08 MPa·m^1/2 respectively, while those of the monolithic ZrB₂ ceramic (0 vol% SiC whiskers added) were 424 MPa and 4.52 MPa·m^1/2 respectively. The grain size of the ZrB ₂-based ceramics was reduced greatly by the addition of nano-SiC whiskers during the sintering process.

Original language	English
Pages (from-to)	1564-1567
Number of pages	4
Journal	Key Engineering Materials
Volume	353-358
Issue number	PART 3
DOIs	https://doi.org/10.4028/0-87849-456-1.1564
Publication status	Published - 2007
Externally published	Yes
Event	Asian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China Duration: 22 Nov 2006 → 25 Nov 2006

Keywords

Mechanical properties
Nano-SiC whisker
Reinforce
ZrB2

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title = "Mechanical properties of ZrB2-based ceramics reinforced by nano-SiC whiskers",

abstract = "In this paper, ZrB2-based ceramics containing up to 15 vol% nano-SiC whiskers were prepared by hot pressing at 1950°C under 20MPa pressure in flow argon. SEM and XRD techniques were used to characterize the sintered compacts. A fine and homogeneous microstructure was observed. The relative density of ZrB2-based ceramic containing 10vol% SiC whiskers reached to 97.7%. The bending strength and fracture toughness of the composite were 550 MPa and 8.08 MPa·m1/2 respectively, while those of the monolithic ZrB2 ceramic (0 vol% SiC whiskers added) were 424 MPa and 4.52 MPa·m1/2 respectively. The grain size of the ZrB 2-based ceramics was reduced greatly by the addition of nano-SiC whiskers during the sintering process.",

keywords = "Mechanical properties, Nano-SiC whisker, Reinforce, ZrB2",

author = "Hailong Wang and Wang, {Chang An} and Rui Zhang and Xing Hu and Daining Fang",

year = "2007",

doi = "10.4028/0-87849-456-1.1564",

language = "English",

volume = "353-358",

pages = "1564--1567",

journal = "Key Engineering Materials",

issn = "1013-9826",

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T1 - Mechanical properties of ZrB2-based ceramics reinforced by nano-SiC whiskers

AU - Wang, Hailong

AU - Wang, Chang An

AU - Zhang, Rui

AU - Hu, Xing

AU - Fang, Daining

PY - 2007

Y1 - 2007

N2 - In this paper, ZrB2-based ceramics containing up to 15 vol% nano-SiC whiskers were prepared by hot pressing at 1950°C under 20MPa pressure in flow argon. SEM and XRD techniques were used to characterize the sintered compacts. A fine and homogeneous microstructure was observed. The relative density of ZrB2-based ceramic containing 10vol% SiC whiskers reached to 97.7%. The bending strength and fracture toughness of the composite were 550 MPa and 8.08 MPa·m1/2 respectively, while those of the monolithic ZrB2 ceramic (0 vol% SiC whiskers added) were 424 MPa and 4.52 MPa·m1/2 respectively. The grain size of the ZrB 2-based ceramics was reduced greatly by the addition of nano-SiC whiskers during the sintering process.

AB - In this paper, ZrB2-based ceramics containing up to 15 vol% nano-SiC whiskers were prepared by hot pressing at 1950°C under 20MPa pressure in flow argon. SEM and XRD techniques were used to characterize the sintered compacts. A fine and homogeneous microstructure was observed. The relative density of ZrB2-based ceramic containing 10vol% SiC whiskers reached to 97.7%. The bending strength and fracture toughness of the composite were 550 MPa and 8.08 MPa·m1/2 respectively, while those of the monolithic ZrB2 ceramic (0 vol% SiC whiskers added) were 424 MPa and 4.52 MPa·m1/2 respectively. The grain size of the ZrB 2-based ceramics was reduced greatly by the addition of nano-SiC whiskers during the sintering process.

KW - Mechanical properties

KW - Nano-SiC whisker

KW - Reinforce

KW - ZrB2

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DO - 10.4028/0-87849-456-1.1564

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SN - 1013-9826

VL - 353-358

SP - 1564

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JO - Key Engineering Materials

JF - Key Engineering Materials

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T2 - Asian Pacific Conference for Fracture and Strength (APCFS'06)

Y2 - 22 November 2006 through 25 November 2006

ER -

Mechanical properties of ZrB₂-based ceramics reinforced by nano-SiC whiskers

Abstract

Keywords

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