Bulk (Ti,Cr)N consolidated by pulsed current activated sintering and its mechanical properties

In Jin Shon; Chang Yul Suh; Sujeong Lee; Ki Min Roh; Hanjung Kwon; Sung Wook Cho; Wonbaek Kim

doi:10.1016/j.ceramint.2012.09.097

Bulk (Ti,Cr)N consolidated by pulsed current activated sintering and its mechanical properties

In Jin Shon
, Chang Yul Suh
, Sujeong Lee
, Ki Min Roh
, Hanjung Kwon
, Sung Wook Cho
, Wonbaek Kim^*

^*Corresponding author for this work

Jeonbuk National University
Korea Institute of Geoscience, Mining and Materials Resources

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

4 Scopus citations

Abstract

Previously, we synthesized (Ti,Cr)N nanoparticles by the electrical explosion of Cr-plated Ti wires and subsequent gas nitriding. In this study, we report the consolidation of bulk (Ti,Cr)N using pulsed current activated sintering (PCAS). A near-full density (Ti,Cr)N compact was obtained in 7 min at 1600 °C. The microhardness and fracture toughness of (Ti,Cr)N were measured and compared to TiN. The average composition of the sintered (Ti,Cr)N was about Ti_0.8Cr_0.2N. The hardness of the (Ti,Cr)N compact was comparable to monolithic TiN even though its grain size was about 3 times larger and it formed a solid solution with softer CrN. It showed almost a complete intergranular fracture mode with a low toughness value possibly due to the embrittled grain boundaries resulting from slight compositional or density variations.

Original language	English
Pages (from-to)	3441-3445
Number of pages	5
Journal	Ceramics International
Volume	39
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2012.09.097
State	Published - 2013.04

Keywords

(Ti,Cr)N
PCAS
TiN
Wire explosion

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Petroleum
Engineering - Chemical

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10.1016/j.ceramint.2012.09.097

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title = "Bulk (Ti,Cr)N consolidated by pulsed current activated sintering and its mechanical properties",

abstract = "Previously, we synthesized (Ti,Cr)N nanoparticles by the electrical explosion of Cr-plated Ti wires and subsequent gas nitriding. In this study, we report the consolidation of bulk (Ti,Cr)N using pulsed current activated sintering (PCAS). A near-full density (Ti,Cr)N compact was obtained in 7 min at 1600 °C. The microhardness and fracture toughness of (Ti,Cr)N were measured and compared to TiN. The average composition of the sintered (Ti,Cr)N was about Ti0.8Cr0.2N. The hardness of the (Ti,Cr)N compact was comparable to monolithic TiN even though its grain size was about 3 times larger and it formed a solid solution with softer CrN. It showed almost a complete intergranular fracture mode with a low toughness value possibly due to the embrittled grain boundaries resulting from slight compositional or density variations.",

keywords = "(Ti,Cr)N, PCAS, TiN, Wire explosion",

author = "Shon, \{In Jin\} and Suh, \{Chang Yul\} and Sujeong Lee and Roh, \{Ki Min\} and Hanjung Kwon and Cho, \{Sung Wook\} and Wonbaek Kim",

year = "2013",

month = apr,

doi = "10.1016/j.ceramint.2012.09.097",

language = "English",

volume = "39",

pages = "3441--3445",

journal = "Ceramics International",

issn = "0272-8842",

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TY - JOUR

T1 - Bulk (Ti,Cr)N consolidated by pulsed current activated sintering and its mechanical properties

AU - Shon, In Jin

AU - Suh, Chang Yul

AU - Lee, Sujeong

AU - Roh, Ki Min

AU - Kwon, Hanjung

AU - Cho, Sung Wook

AU - Kim, Wonbaek

PY - 2013/4

Y1 - 2013/4

N2 - Previously, we synthesized (Ti,Cr)N nanoparticles by the electrical explosion of Cr-plated Ti wires and subsequent gas nitriding. In this study, we report the consolidation of bulk (Ti,Cr)N using pulsed current activated sintering (PCAS). A near-full density (Ti,Cr)N compact was obtained in 7 min at 1600 °C. The microhardness and fracture toughness of (Ti,Cr)N were measured and compared to TiN. The average composition of the sintered (Ti,Cr)N was about Ti0.8Cr0.2N. The hardness of the (Ti,Cr)N compact was comparable to monolithic TiN even though its grain size was about 3 times larger and it formed a solid solution with softer CrN. It showed almost a complete intergranular fracture mode with a low toughness value possibly due to the embrittled grain boundaries resulting from slight compositional or density variations.

AB - Previously, we synthesized (Ti,Cr)N nanoparticles by the electrical explosion of Cr-plated Ti wires and subsequent gas nitriding. In this study, we report the consolidation of bulk (Ti,Cr)N using pulsed current activated sintering (PCAS). A near-full density (Ti,Cr)N compact was obtained in 7 min at 1600 °C. The microhardness and fracture toughness of (Ti,Cr)N were measured and compared to TiN. The average composition of the sintered (Ti,Cr)N was about Ti0.8Cr0.2N. The hardness of the (Ti,Cr)N compact was comparable to monolithic TiN even though its grain size was about 3 times larger and it formed a solid solution with softer CrN. It showed almost a complete intergranular fracture mode with a low toughness value possibly due to the embrittled grain boundaries resulting from slight compositional or density variations.

KW - (Ti,Cr)N

KW - PCAS

KW - TiN

KW - Wire explosion

UR - https://www.scopus.com/pages/publications/84872978129

U2 - 10.1016/j.ceramint.2012.09.097

DO - 10.1016/j.ceramint.2012.09.097

M3 - Journal article

AN - SCOPUS:84872978129

SN - 0272-8842

VL - 39

SP - 3441

EP - 3445

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Bulk (Ti,Cr)N consolidated by pulsed current activated sintering and its mechanical properties

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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