Rod-like eutectic structure of arc-melted TiB2-TiCxN1-x composite

Eric Jianfeng Cheng; Hirokazu Katsui; Rong Tu; Takashi Goto

doi:10.1016/j.jeurceramsoc.2013.12.036

Rod-like eutectic structure of arc-melted TiB2-TiCxN1-x composite

Eric Jianfeng Cheng, Hirokazu Katsui, Rong Tu, Takashi Goto

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

21 Citations (Scopus)

Abstract

TiB₂-TiC_xN_1-x composites were synthesized by arc-melting mixtures of TiB₂, TiC and TiN powders in a N₂ atmosphere at 60kPa. TiB₂-TiC_xN_1-x composites were obtained at TiN contents below 20mol%, whereas TiB formed in the composites at higher TiN contents. TiB₂-TiC_xN_1-x composites with a nominal composition of 36TiB₂-44TiC-20TiN (mol%) had a rod-like eutectic structure, where the TiC_xN_1-x single-crystal rods dispersed in the TiB₂ single-crystal matrix. The crystal orientation relationship between the TiB₂ matrix and the TiC_xN_1-x rods was TiB₂ (0001)//TiC_xN_1-x (111). Vickers hardness (H_v) of the rod-like eutectic composite was 22.5GPa.

Original language	English
Pages (from-to)	2089-2094
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	34
Issue number	9
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2013.12.036
Publication status	Published - 2014 Jan 1

Keywords

Eutectic composite
Lamellar structure
Rod-like structure
Vickers hardness

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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@article{4e7eeb48929549899fc6ce08e596f855,

title = "Rod-like eutectic structure of arc-melted TiB2-TiCxN1-x composite",

abstract = "TiB2-TiCxN1-x composites were synthesized by arc-melting mixtures of TiB2, TiC and TiN powders in a N2 atmosphere at 60kPa. TiB2-TiCxN1-x composites were obtained at TiN contents below 20mol%, whereas TiB formed in the composites at higher TiN contents. TiB2-TiCxN1-x composites with a nominal composition of 36TiB2-44TiC-20TiN (mol%) had a rod-like eutectic structure, where the TiCxN1-x single-crystal rods dispersed in the TiB2 single-crystal matrix. The crystal orientation relationship between the TiB2 matrix and the TiCxN1-x rods was TiB2 (0001)//TiCxN1-x (111). Vickers hardness (Hv) of the rod-like eutectic composite was 22.5GPa.",

keywords = "Eutectic composite, Lamellar structure, Rod-like structure, Vickers hardness",

author = "Cheng, {Eric Jianfeng} and Hirokazu Katsui and Rong Tu and Takashi Goto",

year = "2014",

month = jan,

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doi = "10.1016/j.jeurceramsoc.2013.12.036",

language = "English",

volume = "34",

pages = "2089--2094",

journal = "Journal of the European Ceramic Society",

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T1 - Rod-like eutectic structure of arc-melted TiB2-TiCxN1-x composite

AU - Cheng, Eric Jianfeng

AU - Katsui, Hirokazu

AU - Tu, Rong

AU - Goto, Takashi

PY - 2014/1/1

Y1 - 2014/1/1

N2 - TiB2-TiCxN1-x composites were synthesized by arc-melting mixtures of TiB2, TiC and TiN powders in a N2 atmosphere at 60kPa. TiB2-TiCxN1-x composites were obtained at TiN contents below 20mol%, whereas TiB formed in the composites at higher TiN contents. TiB2-TiCxN1-x composites with a nominal composition of 36TiB2-44TiC-20TiN (mol%) had a rod-like eutectic structure, where the TiCxN1-x single-crystal rods dispersed in the TiB2 single-crystal matrix. The crystal orientation relationship between the TiB2 matrix and the TiCxN1-x rods was TiB2 (0001)//TiCxN1-x (111). Vickers hardness (Hv) of the rod-like eutectic composite was 22.5GPa.

AB - TiB2-TiCxN1-x composites were synthesized by arc-melting mixtures of TiB2, TiC and TiN powders in a N2 atmosphere at 60kPa. TiB2-TiCxN1-x composites were obtained at TiN contents below 20mol%, whereas TiB formed in the composites at higher TiN contents. TiB2-TiCxN1-x composites with a nominal composition of 36TiB2-44TiC-20TiN (mol%) had a rod-like eutectic structure, where the TiCxN1-x single-crystal rods dispersed in the TiB2 single-crystal matrix. The crystal orientation relationship between the TiB2 matrix and the TiCxN1-x rods was TiB2 (0001)//TiCxN1-x (111). Vickers hardness (Hv) of the rod-like eutectic composite was 22.5GPa.

KW - Eutectic composite

KW - Lamellar structure

KW - Rod-like structure

KW - Vickers hardness

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

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