Microstructure and tribo-mechanical properties of ultrafine Ti(CN) cermets

Jeon, Eun‐chae; Joardar, J.; Kang, Shinhoo

doi:10.1016/s0263-4368(02)00004-5

Cited by 79 publications

(38 citation statements)

References 9 publications

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“…A metal binder phase of nickel, cobalt or nickel-cobalt provides the desired adhesion of the hard particles and the required toughness. During the liquid phase sintering process, the hard particles develop a typical core-rim structure, where the core consists of the original undissolved Ti(C,N) particles, and the rim consists of a newly formed complex carbonitride solid solution containing Ti and other transition metals [1][2]. The compositions of the different constituents, and the interactions between them, largely determine the properties of the resulting cermet, such as its elasticity, hardness, fracture strength and oxidation resistance.…”

Section: Introductionmentioning

confidence: 99%

Spark plasma sintering of TixTa1−xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties

Córdoba

Chicardi

Poyato

et al. 2013

Chemical Engineering Journal

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Nanometric powdered Ti x Ta 1-x C 0.5 N 0.5 -based cermets were fabricated using a mechanically induced self-sustaining reaction and consolidated by spark plasma sintering. Highly dense cermets were obtained, and their chemistry, microstructure and mechanical properties were characterised by X-ray diffraction, scanning electron microscopy, image analysis, microindentation and nanoindentation. The microhardness was found to depend directly on the contiguity and size of the ceramic hard particles.The samples synthesised at the lowest temperature (1150 ºC) exhibited more homogeneous microstructures and smaller ceramic particles and the best combination of microhardness and fracture toughness.

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Section: Introductionmentioning

confidence: 99%

Spark plasma sintering of TixTa1−xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties

Córdoba

Chicardi

Poyato

et al. 2013

Chemical Engineering Journal

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“…The fracture toughness of TiC/Ti(CN)-Ni composites (6-7 MPa m 1/2 ) is generally lower than that of WC-Co composites (10-12 MPa m 1/2 ) [1,24]. The shorter lifetimes of the generally weaker components of TiC/Ti (CN)-Ni composites limit their broad applicability and generally leads to the addition of WC to improve their toughness for commercial use [25][26][27][28].…”

Section: Mechanical Properties Of Tic-ni Compositesmentioning

confidence: 99%

“…TiC-Ni (sintered at 1330 1C, for 5 min) 13.5770.15 10.1070.05 TiC-Ni (sintered at 1330 1C, for 30 min) 13.0070.11 11.2270.15 Ti(CN)-Ni (sintered at 1330 1C, for 30 min) 9.677 0.32 -TiC-Ni (20 $30 wt% of Ni)[24] 13.23À9.21 6.8-7.4 Ti(CN) (0.7 μm)-WC (0.4 μm)-Ni (4.1 μm)[25] …”

mentioning

confidence: 99%

Highly toughened dense TiC–Ni composite by in situ decomposition of (Ti,Ni)C solid solution

Kwon

Jung

Suh

et al. 2015

Ceramics International

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“…Cermet D with 0.75 wt.% VC exhibits the smallest grain size, while the grains begin to grow up in cermet E with 1 wt.% VC. It is noted that the grain growth in Ti(C,N) cermets is controlled by Ostwald ripening mechanism [17]. During the liquid phase sintering, TiC/Ti(C,N) particles are dissolved in binder Ni and then precipitated back on the Ti(C,N) grains.…”

Section: Microstructurementioning

confidence: 99%

Effect of VC addition on the microstructure and properties of Ti(C,N)-based nano cermets

Ying¹,

Xiong²,

Guo³

et al. 2011

Rare Metals

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In this paper, Ti(C,N)-based nano cermets were prepared by nano particles, and the effect of VC addition on the microstructure and properties of Ti(C,N)-based nano cermets was investigated. The results showed that there existed black-core grayish-rim structure as well as gray-core grayish-rim structure in VC-doped Ti(C,N)-based nano cermets. With the increase of VC addition, the number of gray cores increased, the lattice parameter of Ti(C,N) phase increased, the grain size decreased, the hardness and fracture toughness of Ti(C,N)-based nano cermets were enhanced, and nearly full densification could be achieved. However, excessive addition of VC to 1 wt% resulted in slight decrease in hardness and fracture toughness. Some deep dimples were found in the fracture surface of cermets with VC addition, which corresponded to ductile fracture.

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Microstructure and tribo-mechanical properties of ultrafine Ti(CN) cermets

Cited by 79 publications

References 9 publications

Spark plasma sintering of TixTa1−xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties

Spark plasma sintering of TixTa1−xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties

Highly toughened dense TiC–Ni composite by in situ decomposition of (Ti,Ni)C solid solution

Effect of VC addition on the microstructure and properties of Ti(C,N)-based nano cermets

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