Spark plasma sintering of the nonstoichiometric ultrafine-grained titanium carbides with nano superstructural domains of the ordered carbon vacancies

Jianyong Xiang; Wentao Hu; Shaocun Liu; Cankun Chen; Yang Zhang; Peng Wang; Haitao Wang; Fusheng Wen; Bo Xu; Dongli Yu; Julong He; Yongjun Tian; Zhongyuan Liu

doi:10.1016/j.matchemphys.2011.06.048

Spark plasma sintering of the nonstoichiometric ultrafine-grained titanium carbides with nano superstructural domains of the ordered carbon vacancies

Jianyong Xiang
, Wentao Hu
, Shaocun Liu
, Cankun Chen
, Yang Zhang
, Peng Wang
, Haitao Wang
, Fusheng Wen
, Bo Xu
, Dongli Yu
, Julong He
, Yongjun Tian
, Zhongyuan Liu

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

30 Scopus citations

Abstract

We report here spark plasma sintering (SPS) of the nonstoichiometric ultrafine-grained TiC_x with the simultaneous formation of ordered carbon vacancies. The SPS-sintered TiC_x exhibits interesting laminar microstructure with grains of ∼250 nm in average size. The cubic superstructure of the ordered vacancies in the C sublattice is found to exist in nano domains. With the increase of carbon content, the observed quick drop in the superstructural domain size indicates that the ordering length of the carbon vacancies depends strongly on the carbon content or the vacancy concentration. In comparison to the case of disordered carbon vacancies, the greatly enhanced compressive strength is observed due to the presence of ordered carbon vacancies.

Original language	English
Pages (from-to)	352-360
Number of pages	9
Journal	Materials Chemistry and Physics
Volume	130
Issue number	1-2
DOIs	https://doi.org/10.1016/j.matchemphys.2011.06.048
State	Published - 17 Oct 2011
Externally published	Yes

Keywords

Carbides
Mechanical properties
Ordered carbon vacancy
Spark plasma sintering

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10.1016/j.matchemphys.2011.06.048

Cite this

Xiang, J., Hu, W., Liu, S., Chen, C., Zhang, Y., Wang, P., Wang, H., Wen, F., Xu, B., Yu, D., He, J., Tian, Y., & Liu, Z. (2011). Spark plasma sintering of the nonstoichiometric ultrafine-grained titanium carbides with nano superstructural domains of the ordered carbon vacancies. Materials Chemistry and Physics, 130(1-2), 352-360. https://doi.org/10.1016/j.matchemphys.2011.06.048

@article{ca72f9660c2e44a8badba8476bcdc178,

title = "Spark plasma sintering of the nonstoichiometric ultrafine-grained titanium carbides with nano superstructural domains of the ordered carbon vacancies",

abstract = "We report here spark plasma sintering (SPS) of the nonstoichiometric ultrafine-grained TiCx with the simultaneous formation of ordered carbon vacancies. The SPS-sintered TiCx exhibits interesting laminar microstructure with grains of ∼250 nm in average size. The cubic superstructure of the ordered vacancies in the C sublattice is found to exist in nano domains. With the increase of carbon content, the observed quick drop in the superstructural domain size indicates that the ordering length of the carbon vacancies depends strongly on the carbon content or the vacancy concentration. In comparison to the case of disordered carbon vacancies, the greatly enhanced compressive strength is observed due to the presence of ordered carbon vacancies.",

keywords = "Carbides, Mechanical properties, Ordered carbon vacancy, Spark plasma sintering",

author = "Jianyong Xiang and Wentao Hu and Shaocun Liu and Cankun Chen and Yang Zhang and Peng Wang and Haitao Wang and Fusheng Wen and Bo Xu and Dongli Yu and Julong He and Yongjun Tian and Zhongyuan Liu",

note = "Funding Information: We appreciate the financial supports from the National Basic Research Program of China (Grant No. 2010CB731605 ), the National Science Fund for Distinguished Young Scholars of China (Grant No. 51025103 ), and No. 50872118, and No. 58021001 ",

year = "2011",

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doi = "10.1016/j.matchemphys.2011.06.048",

language = "English",

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Xiang, J, Hu, W, Liu, S, Chen, C, Zhang, Y, Wang, P, Wang, H, Wen, F, Xu, B, Yu, D, He, J, Tian, Y & Liu, Z 2011, 'Spark plasma sintering of the nonstoichiometric ultrafine-grained titanium carbides with nano superstructural domains of the ordered carbon vacancies', Materials Chemistry and Physics, vol. 130, no. 1-2, pp. 352-360. https://doi.org/10.1016/j.matchemphys.2011.06.048

TY - JOUR

T1 - Spark plasma sintering of the nonstoichiometric ultrafine-grained titanium carbides with nano superstructural domains of the ordered carbon vacancies

AU - Xiang, Jianyong

AU - Hu, Wentao

AU - Liu, Shaocun

AU - Chen, Cankun

AU - Zhang, Yang

AU - Wang, Peng

AU - Wang, Haitao

AU - Wen, Fusheng

AU - Xu, Bo

AU - Yu, Dongli

AU - He, Julong

AU - Tian, Yongjun

AU - Liu, Zhongyuan

N1 - Funding Information: We appreciate the financial supports from the National Basic Research Program of China (Grant No. 2010CB731605 ), the National Science Fund for Distinguished Young Scholars of China (Grant No. 51025103 ), and No. 50872118, and No. 58021001

PY - 2011/10/17

Y1 - 2011/10/17

N2 - We report here spark plasma sintering (SPS) of the nonstoichiometric ultrafine-grained TiCx with the simultaneous formation of ordered carbon vacancies. The SPS-sintered TiCx exhibits interesting laminar microstructure with grains of ∼250 nm in average size. The cubic superstructure of the ordered vacancies in the C sublattice is found to exist in nano domains. With the increase of carbon content, the observed quick drop in the superstructural domain size indicates that the ordering length of the carbon vacancies depends strongly on the carbon content or the vacancy concentration. In comparison to the case of disordered carbon vacancies, the greatly enhanced compressive strength is observed due to the presence of ordered carbon vacancies.

AB - We report here spark plasma sintering (SPS) of the nonstoichiometric ultrafine-grained TiCx with the simultaneous formation of ordered carbon vacancies. The SPS-sintered TiCx exhibits interesting laminar microstructure with grains of ∼250 nm in average size. The cubic superstructure of the ordered vacancies in the C sublattice is found to exist in nano domains. With the increase of carbon content, the observed quick drop in the superstructural domain size indicates that the ordering length of the carbon vacancies depends strongly on the carbon content or the vacancy concentration. In comparison to the case of disordered carbon vacancies, the greatly enhanced compressive strength is observed due to the presence of ordered carbon vacancies.

KW - Carbides

KW - Mechanical properties

KW - Ordered carbon vacancy

KW - Spark plasma sintering

UR - https://www.scopus.com/pages/publications/80052601583

U2 - 10.1016/j.matchemphys.2011.06.048

DO - 10.1016/j.matchemphys.2011.06.048

M3 - Article

AN - SCOPUS:80052601583

SN - 0254-0584

VL - 130

SP - 352

EP - 360

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1-2

ER -

Spark plasma sintering of the nonstoichiometric ultrafine-grained titanium carbides with nano superstructural domains of the ordered carbon vacancies

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