Structures and properties of hard and superhard nanocomposite coatings

Pogrebnyak, A. D.; Shpak, A. P.; Azarenkov, N.A.; Береснев, В. М.

doi:10.3367/ufnr.0179.200901b.0035

Cited by 65 publications

(36 citation statements)

References 138 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is well known that the ceramic coating Al 2 O 3 exhibits high resistance to corrosive and oxidizing environments, as well as provides protection for the parts operating at high temperatures [5]. In [1,2] it was shown that the multi-layer coating of TiAlN/TiN/ Al 2 O 3 , obtained by dierent techniques provides good protection against corrosion and wear, and is resistant to temperatures up to 900…”

Section: Introductionmentioning

confidence: 99%

Formation of Multilayered Ti-Hf-Si-N/NbN/Al₂O₃Coatings with High Physical and Mechanical Properties

et al. 2013

Self Cite

View full text Add to dashboard Cite

This work presents the rst results on forming of multi-layered superhard coatings TiHfSiN/NbN/Al2O3 and their properties as well as structure. Microstructure, elemental and phase compositions of multi-layered coatings obtained by dierent methods were investigated. There were used such methods as: scanning electron microscopy EDS JEM-7000F microscope (with microanalysis) for research of cross-section of coatings, with subsequent Auger-electron spectroscopy, X-ray diraction analysis, optical inverted microscope Olympus GX51, electron-ion microscopes Quanta 200 3D and Quanta 600 (scanning electron microscopy), equipped by the detector of X-ray radiation of the system PEGASUS 2000. It was stated that hardness of coatings has reached 56 GPa, and at the same time the factor of wearing during friction was the smallest 2.571 × 10 −5 . It was also noted that nitrogen pressure in the chamber at the deposition of the top layer signicantly inuences on the properties of samples. For example, the coecient of friction at P = 0.3 Pa from 0.2 at the beginning of track to 0.001 (during the tests), and at the pressure of nitrogen P = 0.8 Pa, the coecient of friction was equal to 0.314 at the beginning of track and 0.384 at the end (during the tests).

show abstract

Section: Introductionmentioning

confidence: 99%

Formation of Multilayered Ti-Hf-Si-N/NbN/Al₂O₃Coatings with High Physical and Mechanical Properties

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

“…At present, refractory metal boride thin films are widely used as various anticorrosive and protective coatings [1,2]. The interest in these films is also due to their high hardness and wear resistance.…”

Section: Introductionmentioning

confidence: 99%

“…In the course of the formation of transition metal diboride films (TiB 2 , CrB 2 , TаB 2 , VB 2 , HfB 2 , etc. ), they were found to demonstrate a wide range of structural states, namely, from amorphous cluster to nanocrys talline with the growth texture in plane (00.1) plane and columnar structure [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. A distinctive feature of the structure of transition metal diboride films with high physicomechanical characteristics is the columnar structure and growth texture in plane (00.1).…”

Section: Introductionmentioning

confidence: 99%

Superhardness effect in transition-metal diborides films

Бажин

Goncharov

Pogrebnyak

et al. 2016

Phys. Metals Metallogr.

View full text Add to dashboard Cite

Abstract-The structure, composition, and properties of transition metal diboride films have been studied. It was shown that they are characterized by a wide range of structural states, namely from amorphous like to nanocrystalline with crystallite sizes of 1-50 nm. The characteristic peculiarity of the structure of film tran sition metal diborides with high physical and mechanical properties is the formation of a nanocrystalline (columnar) structure with the growth texture in plane [00.1] and a nanocrystallite size of 20-50 nm. The ele ment composition of a superhard highly textured film transition metal diborides was studied by ion mass spectrometry and Auger electron spectroscopy. The overstoichiometry effect in nanocrystalline transition metal diboride films is explained. It was shown that this effect is related to the formation of an additional B⎯B covalent bond, which is realized at subgrain boundaries and leads to the appearance of superhardness in the formed coatings.

show abstract

“…One of the priority directions of the modern science and technology is the development of new materials on the basis of multicomponent alloys, nanocomposite coatings, and analysis of their physico mechanical and tribological characteristics [1,2].…”

Section: Introductionmentioning

confidence: 99%

Superhard coatings of the (Zr-Ti-Si)N and (Ti-Hf-Si)N systems produced by vacuum-arc deposition from a separated flow

Береснев

Klimenko

Toryanik

et al. 2014

J. Superhard Mater.

View full text Add to dashboard Cite

Abstract-Multicomponent hard coatings based on nitrides of Si doped transition metals have been pro duced by vacuum-arc deposition with the use of a RF generator and separation of an ion-plasma flux. Physico mechanical and tribotechnical characteristics of coatings have been studied. The possibility of their use as efficient protective coatings has been shown. DOI: 10.3103/S1063457614010055Keywords: protective coatings, vacuum-arc deposition, nitrides of metals, cutting tools. INTRODUCTIONOne of the priority directions of the modern science and technology is the development of new materials on the basis of multicomponent alloys, nanocomposite coatings, and analysis of their physico mechanical and tribological characteristics [1,2].To produce multicomponent and multilayer coatings, the ion-plasma deposition methods are most used in the industry, in particular, magnetron sputtering [3] and vacuum arc deposition [4]. The use of ion-plasma methods makes it possible to produce multicomponent coatings of different materials by mixing plasma streams from several sources or by sputtering of a cathode, which contains various components in its compo sition. Of greatest scientific interest are the methods, the use of which makes possible the formation of multi component coatings by conventional devices with one cathode containing necessary components in required ratios. The advances of technologies of applying nanocomposite coatings by ion-plasma methods require a further improvement of the known sputtering systems and development of fundamentally new devices [5,6]. Synthesized multicomponent coatings have high operational characteristics due to the stabilities of the struc ture and composition, which are characterized by the minimum Gibbs energy.Of refractory compounds that demonstrate high functional characteristics nanocrystalline composites pro duced as interstitial solid solutions based on nitrides of titanium, zirconium, hafnium, silicon, etc. take up a special place [7,8].The aim of the present study was to develop superhard multicomponent nitride systems based on solid solu tions produced by sputtering all metal cathodes using a vacuum-arc deposition from a separated beam and RF low energy ion treatment and to study physico mechanical properties of the resulting coatings. The use of separated ion-plasma flux will make it possible to practically get rid of a drop fraction in the coatings formed.

show abstract

Structures and properties of hard and superhard nanocomposite coatings

Cited by 65 publications

References 138 publications

Formation of Multilayered Ti-Hf-Si-N/NbN/Al₂O₃Coatings with High Physical and Mechanical Properties

Formation of Multilayered Ti-Hf-Si-N/NbN/Al₂O₃Coatings with High Physical and Mechanical Properties

Superhardness effect in transition-metal diborides films

Superhard coatings of the (Zr-Ti-Si)N and (Ti-Hf-Si)N systems produced by vacuum-arc deposition from a separated flow

Contact Info

Product

Resources

About

Structures and properties of hard and superhard nanocomposite coatings

Cited by 65 publications

References 138 publications

Formation of Multilayered Ti-Hf-Si-N/NbN/Al2O3Coatings with High Physical and Mechanical Properties

Formation of Multilayered Ti-Hf-Si-N/NbN/Al2O3Coatings with High Physical and Mechanical Properties

Superhardness effect in transition-metal diborides films

Superhard coatings of the (Zr-Ti-Si)N and (Ti-Hf-Si)N systems produced by vacuum-arc deposition from a separated flow

Contact Info

Product

Resources

About

Formation of Multilayered Ti-Hf-Si-N/NbN/Al₂O₃Coatings with High Physical and Mechanical Properties

Formation of Multilayered Ti-Hf-Si-N/NbN/Al₂O₃Coatings with High Physical and Mechanical Properties