Manufacture of multipurpose composite and ceramic materials in the combustion regime and high-temperature deformation (SHS extrusion)

Столин, А. М.; Бажин, П. М.

doi:10.1134/s0040579514060104

Cited by 41 publications

(10 citation statements)

References 28 publications

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“…The preliminarily mixed charge was compressed into cylindrical 35-g rods, with a diameter of 25 mm and a relative density of 0.52–0.58 ( Table 1 ). A combustion SHS reaction was initiated, and the synthesized material was then subjected to high-temperature deformation (SHS extrusion [ 12 , 13 , 14 ]) through a die 3 or 4 mm in diameter at a strain of 0.99 or 0.97, respectively, 3–5 s after the reaction. The press plunger speed was 60 mm/s and the pressing pressure was 50 MPa.…”

Section: Methodsmentioning

confidence: 99%

“…An alternative to these methods is one of the self-propagating high-temperature synthesis (SHS) methods [ 10 , 11 ], namely, SHS extrusion. This method combines combustion and high-temperature deformation of the materials to be synthesized and can be used to form compact products as long as 400–500 mm with a residual porosity of at most 5% at one technological stage in several tens of seconds [ 12 , 13 , 14 ]. Note that these high-density rods made of titanium boride can be used as valves in the gas-distribution system of a modern car, which are now produced by powder metallurgy.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ceramic Ti—B Composites Synthesized by Combustion Followed by High-Temperature Deformation

et al. 2016

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Long compact cylindrical rods, which consist of a titanium monoboride-based TiB—30 wt % Ti ceramic composite material, are synthesized during combustion of the initial components (titanium, boron) followed by high-temperature deformation. High-temperature deformation is found to affect the orientation of the hardening titanium monoboride phase in the sample volume and the phase composition of the sample. The combustion temperature is studied as a function of the relative density of the initial workpiece under the experimental conditions.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ceramic Ti—B Composites Synthesized by Combustion Followed by High-Temperature Deformation

et al. 2016

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“…Development of the layered composite materials allowing to effectively combine desirable operational characteristics of the modified surface layers and the main material (substrate) at the present time is perspective in many areas of human activity: in optics (conducting, antireflecting, filtering, reflecting, and absorbing media), electronics (conductors, semiconductors, dielectrics), machine engineering, building and household (tribological, durable, wear-resistant, functional, protective, resistant to action of aggressive environment, decorative, and other coatings for structural and utility materials), medicine (biocompatible materials), etc. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Using of Magnetron Sputtering for Biocompatible Composites Creating

Nasakina¹,

Sevostyanov²,

Баикин³

et al. 2019

Advances in Composite Materials Development

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Biocompatible composites obtained using the magnetron sputtering for the production of minimally invasive implantation medical devices (stents) were investigated. Nano-and microdimensional surface layers of Ta, Ti, Ag, and Cu on flat and wire NiTi, Cu, Ti, and SiO 2 substrates were created. The phase composition, surface morphology, and the layer-by-layer composition were investigated on an X-ray diffractometer, SEM, and Auger spectrometer. It was shown that the thickness and the structure of surface layers were affected by the sputtering distance, time, power, and the bias voltage at the substrate. The presence of the transition layer that contains both substrate and target elements and provides high adhesion of the surface layer to the substrate has been demonstrated. The material was tested for corrosion resistance under static conditions by dipping into solutions with various acidities (pH from 1.68 to 9.18) for 2 years, static mechanical properties, and biocompatibility in vitro and in vivo. A slight corrosive dissolution was observed only in a medium with a pH of 1.56. Dissolution in the other media is absent. An increase in strength and plasticity in comparison with substrate was attained depending on the nature of the sputtered substance and substrate. Toxicity of samples has not been revealed.

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“…Optimal balance can be reached upon alloying with various silicides, refractory metal oxides [8], and other alloying agents. In SHS extru sion, an alternative method for production of high temperature heaters, of key importance is the mold ability of still hot combustion products [9][10][11].…”

mentioning

confidence: 99%