In situ reaction synthesis and mechanical properties of TaC-TaSi 2 composites

Chunfeng Hu; Lingfeng He; Fangzhi Li; Ling Wu; Jingyang Wang; Meishuan Li; Yiwang Bao; Yanchun Zhou

doi:10.1111/j.1744-7402.2009.02392.x

In situ reaction synthesis and mechanical properties of TaC-TaSi ₂ composites

Chunfeng Hu
, Lingfeng He
, Fangzhi Li
, Ling Wu
, Jingyang Wang
, Meishuan Li
, Yiwang Bao
, Yanchun Zhou

Materials and Fuels Complex

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

TaC-TaSi₂ composites were fabricated at 1700°C by an in situ reaction/hot pressing method using Ta, Si, and graphite as initial materials. TaSi₂ content was 0-100 vol%. The microstructure and mechanical properties of the composites were investigated. It was found that the relative densities of composites were above 97.5% when the volume content of TaSi ₂ was above 10%. The TaC/10 vol% TaSi₂ composite presented the highest flexural strength of 376 MPa. When the TaSi₂ content was 30-50 vol%, the composites showed the highest fracture toughness of about 4.3 MP·am^1/2. In addition, the composites could retain high Young's modulus up to at least 1525°C.

Original language	English
Pages (from-to)	697-703
Number of pages	7
Journal	International Journal of Applied Ceramic Technology
Volume	7
Issue number	6
DOIs	https://doi.org/10.1111/j.1744-7402.2009.02392.x
State	Published - Nov 2010

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title = "In situ reaction synthesis and mechanical properties of TaC-TaSi 2 composites",

abstract = "TaC-TaSi2 composites were fabricated at 1700°C by an in situ reaction/hot pressing method using Ta, Si, and graphite as initial materials. TaSi2 content was 0-100 vol\%. The microstructure and mechanical properties of the composites were investigated. It was found that the relative densities of composites were above 97.5\% when the volume content of TaSi 2 was above 10\%. The TaC/10 vol\% TaSi2 composite presented the highest flexural strength of 376 MPa. When the TaSi2 content was 30-50 vol\%, the composites showed the highest fracture toughness of about 4.3 MP·am1/2. In addition, the composites could retain high Young's modulus up to at least 1525°C.",

author = "Chunfeng Hu and Lingfeng He and Fangzhi Li and Ling Wu and Jingyang Wang and Meishuan Li and Yiwang Bao and Yanchun Zhou",

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T1 - In situ reaction synthesis and mechanical properties of TaC-TaSi 2 composites

AU - Hu, Chunfeng

AU - He, Lingfeng

AU - Li, Fangzhi

AU - Wu, Ling

AU - Wang, Jingyang

AU - Li, Meishuan

AU - Bao, Yiwang

AU - Zhou, Yanchun

PY - 2010/11

Y1 - 2010/11

N2 - TaC-TaSi2 composites were fabricated at 1700°C by an in situ reaction/hot pressing method using Ta, Si, and graphite as initial materials. TaSi2 content was 0-100 vol%. The microstructure and mechanical properties of the composites were investigated. It was found that the relative densities of composites were above 97.5% when the volume content of TaSi 2 was above 10%. The TaC/10 vol% TaSi2 composite presented the highest flexural strength of 376 MPa. When the TaSi2 content was 30-50 vol%, the composites showed the highest fracture toughness of about 4.3 MP·am1/2. In addition, the composites could retain high Young's modulus up to at least 1525°C.

AB - TaC-TaSi2 composites were fabricated at 1700°C by an in situ reaction/hot pressing method using Ta, Si, and graphite as initial materials. TaSi2 content was 0-100 vol%. The microstructure and mechanical properties of the composites were investigated. It was found that the relative densities of composites were above 97.5% when the volume content of TaSi 2 was above 10%. The TaC/10 vol% TaSi2 composite presented the highest flexural strength of 376 MPa. When the TaSi2 content was 30-50 vol%, the composites showed the highest fracture toughness of about 4.3 MP·am1/2. In addition, the composites could retain high Young's modulus up to at least 1525°C.

UR - https://www.scopus.com/pages/publications/78449266486

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DO - 10.1111/j.1744-7402.2009.02392.x

M3 - Article

AN - SCOPUS:78449266486

SN - 1546-542X

VL - 7

SP - 697

EP - 703

JO - International Journal of Applied Ceramic Technology

JF - International Journal of Applied Ceramic Technology

IS - 6

ER -

In situ reaction synthesis and mechanical properties of TaC-TaSi ₂ composites

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