Preparation and abrasive properties of eutectic compositions in the system B4C-SiC-TiB2

Udalov, Yu. P.; Valova, E. E.; Ordan’yan, S. S.

doi:10.1007/bf02227391

Cited by 17 publications

(13 citation statements)

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“…It is shown in [3] that no quaternary compounds form in the B 4 C-TiB 2 -SiC triangle at 730-2230°C. It is concluded that the B 4 C-TiB 2 -SiC system bounded with the B 4 C-SiC, B 4 C-TiB 2 , and TiB 2 -SiC quasibinary eutectic systems is a eutectic system as well.…”

Section: Literature Datamentioning

confidence: 97%

“…It is concluded that the B 4 C-TiB 2 -SiC system bounded with the B 4 C-SiC, B 4 C-TiB 2 , and TiB 2 -SiC quasibinary eutectic systems is a eutectic system as well. Assuming that B 4 C, TiB 2 , and SiC melt congruently and are phases of constant composition and using the regular solution approximation for the Gibbs energy of the liquid phase, the authors of [3] performed thermodynamic calculation of the liquidus surface, whose results are shown in Fig. 2.…”

Section: Literature Datamentioning

confidence: 99%

“…Samples of calculated ternary eutectic composition produced by arc melting of a powder mixture of compounds were studied in [3] with X-ray diffraction and metallography. The alloy actually contained three phases: B 4 C + TiB 2 + SiC.…”

Section: Literature Datamentioning

confidence: 99%

“…However, information on the physicochemical interaction between components in the quaternary system, that serves as a scientific basis for the technology of superhard wear-resistant materials, is very limited. It is represented in only [3], in which SiC is described as a congruently melting compound and the section itself is treated as a quasiternary system. A number of papers represent the synthesis technology and properties of Ti-Si-B-C materials: for dense SiC-TiB 2 [4] and B 4 C-SiC-TiB 2 [5,6] composites and more complex TiC-TiB 2 -B 4 C-SiC multilayer composites including titanium carbide [7].…”

Section: Introductionmentioning

confidence: 99%

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Phase equilibria in the Ti-Si-B-C quaternary system as a basis for developing new ceramic materials

Velikanova

Турчанин

Korniyenko

et al. 2011

Powder Metall Met Ceram

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Using the CALPHAD method, a thermodynamic model of the Ti-Si-B-C quaternary system is developed for the first time. Based on calculations of phase equilibria, a way for tetrahedration of this system is proposed. Fragments of the phase diagrams that have not been studied previously are calculated for the boundary ternary systems, with calculations for Si-B-C being performed for the first time. It is concluded that there is no quasiternary eutectic with participation of ZrB 2 , B 4 C, andSiC compounds in the Ti-Si-B-C system. It is shown that additions of titanium carbide to the ZrB 2 + B 4 C + SiC mixture should lead to reactions resulting in solid-state formation of graphite (for example, during sintering or hot pressing) or its crystallization as a primary phase during separation from the melt, in a wide range of compositions. It should be taken into account in development of materials from these refractory compounds.

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Section: Literature Datamentioning

confidence: 97%

Section: Literature Datamentioning

confidence: 99%

Section: Literature Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phase equilibria in the Ti-Si-B-C quaternary system as a basis for developing new ceramic materials

Velikanova

Турчанин

Korniyenko

et al. 2011

Powder Metall Met Ceram

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“…Among the quasi-binary ceramic systems that have been well studied nowadays [15][16][17][18][19][20][21][22] in a massive macrocrystalline state the TiB 2 -W 2 B 5 system showed the greatest increase in strength combined with high hardness in comparison with separately taken system components. The bending strength in a massive state of ≈1000 MPa was reached for this quasi-binary system at hardness of 28 GPa and density of 5,88·103 kg/m 3 .…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Ceramic Nanostructured Coatings

Pugachov¹

2010

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S)AFRL-AFOSR-UK-TR-2010-0006 DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTES ABSTRACTThis report results from a contract tasking National Technical University 'Kharkov Polytechnical Institute' as follows: The project is devoted to creating the new class of high-efficiency wear-resistant ion-plasma coatings based on transition metal borides for application under extreme conditions. The main idea of the project: providing the necessary properties of the materials due to controlling the phase composition, structure and stress state during their formation from ion-plasma fluxes. SUBJECT TERMS SummaryThis paper delves into integrated analysis of a structure, substructure, stressed state and some mechanical and physical properties of the films formed by the titanium and tungsten borides and carbides. The analysis was done using the X-ray and electron-optical methods. This information expands our knowledge of the mechanisms that are involved in the formation of condensates using the ion -plasma methods and it is needed for evolving a condensate formation theory using these methods to provide the physical fundamentals for numerous practical applications.In addition, this paper analyzes stability of the structural state and mechanical properties of materials of a new class, i.e. ion-plasma coatings of quasi-binary systems subjected to the influence of factors peculiar for the open space.

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Carbon (Graphene/Graphite)

Shabalin

2014

Ultra-High Temperature Materials I

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Preparation and abrasive properties of eutectic compositions in the system B4C-SiC-TiB2

Cited by 17 publications

References 1 publication

Phase equilibria in the Ti-Si-B-C quaternary system as a basis for developing new ceramic materials

Phase equilibria in the Ti-Si-B-C quaternary system as a basis for developing new ceramic materials

Multifunctional Ceramic Nanostructured Coatings

Carbon (Graphene/Graphite)

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