TiC–TiB2 composites: A review of phase relationships, processing and properties

Vallauri, Dario; Adrian, Isabel Cristina Atias; Chrysanthou, A.

doi:10.1016/j.jeurceramsoc.2007.11.011

Cited by 382 publications

(207 citation statements)

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“…Ti-B-C-based composite coatings have been studied for tribological applications [1,2,3,4], 23 in which B increases the hardness and the wear resistance of TiC. The Ti-B-C ternary 24 phase diagram contains TiC, TiB 2 , and C. Thus, the selection of composition in the 25 composite can give a trade-off between the lubricating amorphous C and probable BC x 26 phase [5] for good mechanical properties [1,2,3,4] and the hard, but also the conductive 27…”

mentioning

confidence: 99%

Ti–B–C nanocomposite coatings deposited by magnetron sputtering

Lauridsen

Nedfors

Jansson

et al. 2012

Applied Surface Science

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9Ti-B-C nanocomposite coatings with a B content of 8-17 at. %, have been deposited by 10 magnetron sputtering from B 4 C, Ti, and C targets. X-ray diffraction, photoelectron 11 spectroscopy, and electron microscopy show that the coatings consist of nanocrystalline 12 (nc) TiC:B embedded in a matrix of amorphous (a) C, BC x ,TiO x and BO x . The fraction of 13 amorphous phase scales with the Ti concentration, where the matrix predominantly 14 consists of free C with some BC x in coatings with a C/Ti ratio >1, while the matrix 15 predominantly consists of BC x with some free C in coatings with a C/Ti ratio <1. Nc-16TiC:B/a-BC x /a-C coatings with low amount of free C exhibit a contact resistance 17 comparable to the contact resistance of an Ag sputtered coating at loads of ~1 N against 18 an Au probe, despite the O content of ~16 at. %.

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mentioning

confidence: 99%

Ti–B–C nanocomposite coatings deposited by magnetron sputtering

Lauridsen

Nedfors

Jansson

et al. 2012

Applied Surface Science

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“…3. The density, hardness, and fracture toughness of the TiB 2 -TiC ceramic are tested as 4.3 g/cm 3 , 18±1.5 GPa, and 13.5±1.8 MPa·m 1/2 , respectively. The combustion synthesis process in high gravity field for preparing TiB 2 -TiC ceramic can be described as follows.…”

Section: Resultsmentioning

confidence: 99%

“…In the experiment demonstrated above, the solidified TiB 2 -TiC ceramic proves to be 66.7mol%TiB 2 -TiC based on Eq. (1), which belongs to the hypereutectic group according to the binary equilibrium diagram of TiB 2 -TiC system [3,4]. The TiB 2 is considered as the leading phase in nucleation process due to the higher concentration of B atoms than that of C atoms in liquid ceramic.…”

Section: Resultsmentioning

confidence: 99%

“…XRD, FESEM, and EDS results show that the ceramic is composed of a number of fine TiB 2 platelets, irregular TiC grains, and a few of Cr metallic binder. And the physical and mechanical properties reveal that the density, hardness, and fracture toughness of the ceramic are 4.3 g/cm 3 , 18±1.5 GPa, and 13.5±1.8 MPa·m 1/2 , respectively. The blend of TiB 2 -TiC ceramic to stainless steel consists of three-layer structures, i.e., the TiB 2 -TiC ceramic layer, the intermediate layer, and the stainless steel substrate.…”

Section: Discussionmentioning

confidence: 99%

“…The novel TiB 2 -TiC ceramic possesses more advantages than traditional metals, especially in high temperature techniques [3][4][5]. However, ceramics generally have low toughness and are hard to be used to manufacture complex parts.…”

Section: Introductionmentioning

confidence: 99%

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Fusion bonding and microstructure formation in TiB2-based ceramic/metal composite materials fabricated by combustion synthesis under high gravity

Huang

Zhang

et al. 2015

J Adv Ceram

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Abstract:The novel ceramic/metal composite materials were successfully fabricated by combustion synthesis in high gravity field. In this paper, the Ti-B 4 C was selected as the main combustion reaction system to obtain TiB 2 -TiC ceramic substrate, and the 1Cr18Ni9Ti stainless steel was selected as the metal substrate. It was found that the TiB 2 -TiC/1Cr18Ni9Ti composite materials exhibited continuously graded composition and hybrid microstructure. The TiC 1x carbides and TiB 2 platelets decreased gradually in size and volume fraction from the ceramic to stainless steel. Due to the rapid action of thermal explosion as well as the dissolution of the molten stainless steel into TiB 2 -TiC liquid, the diffusion-controlled concentration gradient from the ceramic liquid to the alloy liquid was observed. Finally, as a result of the rapid sequent solidification of the ceramic liquid and the melt alloy surface, the laminated composite materials were achieved in multilevel, scale-span hybrid microstructure.

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