Development of Heat Resistant Aluminum Composite with Minor Addition of Alumina Nanofibers (Nafen™)

Агуреев, Л. Е.; Laptev, I. N.; Ivanov, B. S.; Kanushkin, A. I.; Костиков, В. И.; Ризаханов, Р. Н.; Eremeeva, Zh. V.; Ашмарин, А. А.; Иванов, А. В.; Vysotina, E. A.; Panasova, G. V.

doi:10.1134/s2075113320050020

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…CrMo alloys consisting of a solid solution are characterized by high heat resistance and corrosion resistance, which makes them promising as additions to NiAl-based materials. Moreover, the addition of small amounts of insoluble nanoparticles to a metal or alloy matrix leads to an increase in the strength characteristics and creep resistance, as well as to an improvement in a number of functional properties [ 27 , 28 , 29 ]. This paper describes the study of materials based on the system (at.%) NiAl-13Cr-13Mo (marked as “M”) with small additions of zirconium oxide (0.01–0.1 wt.%) or aluminum magnesium spinel (0.01–0.2 wt.%) nanoparticles, formed by spark plasma sintering of mechanically activated powders.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of small additions of nanoparticles on mechanical properties has not yet been fully explained. In a number of previous works, it has been found that in the case of a soft matrix, for example, aluminum [ 29 , 30 ], small additions of high-modulus insoluble in the matrix nanoparticles provide not only an increase in strength, but also in elastic modulus. Moreover, for a number of cases, such dependencies of properties on the concentration of additives of nanoparticles have an extreme character.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Агуреев¹,

Костиков

Савушкина

et al. 2022

Materials

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Materials based on the NiAl-Cr-Mo system with zirconium oxide or aluminum-magnesium spinel nanoparticle small additions were obtained by spark plasma sintering. Thermodynamic modeling was carried out to predict the phase formation in the NiAl-Cr-Mo system and its change depending on temperature, considering the presence of a small amount of carbon in the system. The phase composition and microstructure of materials were studied. NiAl (B2) and CrMo phases were found in the sintered samples. Bending strength measurements at different temperatures shows that nanoparticles of insoluble additives lead to an increase in bending strength, especially at high temperatures. A fractographic analysis of the sample’s fractures shows their hybrid nature and intercrystalline fracture, which is confirmed by the clearly visible matrix grains similar to cleavage. The maximum strength at 700 °C (475 MPa) was found for material with the addition of 0.1 wt.% zirconium oxide nanoparticles. In the study of internal friction, typical peaks of a nickel-aluminum alloy were found in the temperature ranges of 150–200 °C and 350–400 °C.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Агуреев¹,

Костиков

Савушкина

et al. 2022

Materials

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“…Alumina nanoparticles find applications in fuel additives, [21][22][23][24] alloys, 25,26 metal matrix composites, [27][28][29][30] and polymer matrix composites 10,20,[31][32][33][34][35][36] to name a few. Alumina nanofibers (γ-phase) used in this study are novel nanomaterials which have a whisker morphology as opposed to spherical morphology and are manufactured by ANF technology under the trade name Nafen TM .…”

Section: Introductionmentioning

confidence: 99%

Influence of surface functionalization of ceramic nanofibers on morphological, physical and mechanical properties of unsaturated polyester nanocomposites

Kallagunta

Tate

2022

Composites and Advanced Materials

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Alumina nanofibers at 0.25wt%, 0.5wt%, 0.75wt%, and 1wt% concentration were used to modify unsaturated polyester resin. Additionally, vinyl silane treated alumina nanofibers were used at the same concentrations and were compared to pristine alumina nanofibers. The SEM images showed a variation in the surface morphology when alumina nanofibers and the BET measurement showed surface area increase from 111 m2/g to 122 m2/g when nanofibers were treated with silane agent. The dispersion of alumina nanofibers into the host unsaturated polyester resin was successfully achieved by three roll mill dispersion. The TEM images showed good dispersion of alumina nanofibers in polyester resin. Although pristine nanofibers showed greater agglomeration at 1wt% concentration, the effect of agglomeration was reduced in the 1wt% concentration. The weight loss measurements from TGA showed that the thermal stability of nanocomposites increased with addition of nanofibers and the lower onset degradation temperature can be tailored to improve by a maximum of 5.5% for silane treated nanofiber. Viscosity and contact angle which are key factors affecting the processability has seen to be positively altered by silane treatment. Additional tensile, flexural, and Izod impact properties were evaluated for the nine material systems and the properties were summarized.

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“…Nafen is used to reinforce composite materials [2], in catalyst chemistry [3], and as a part of membranes with polarizable nanopores [4]. It is also known that the dielectric constant of aerogels depends on porosity [1].…”

Section: Introductionmentioning

confidence: 99%

The³He nuclear magnetic relaxation in nematically ordered Al₂O₃ aerogels: effects of ⁴He and nitrogen pre-plating

Stanislavovas¹,

Kuzmin²,

Safiullin³

et al. 2021

J. Phys.: Condens. Matter

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The results of 3He gas pulsed NMR spin–lattice relaxation study in high-porosity (84.9%–97.9%) nematically ordered Al2O3 aerogels at 1.5 and 4.2 K are presented. The linear dependence of T 1 on gas pressure is observed in aerogels that are pre-plated by helium-4. Nitrogen pre-plating prior to helium-4 pre-plating weakly decreases the 3He gas spin–lattice relaxation rate. A few possible mechanisms plausibly involved in 3He nuclear magnetic relaxation in aerogels are considered. The suggested nuclear spin–lattice relaxation model due to some magnetically ‘dirty’ aerogel fibers allows to estimate the effective mean free path of 3He atoms in aerogel.

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Development of Heat Resistant Aluminum Composite with Minor Addition of Alumina Nanofibers (Nafen™)

Cited by 4 publications

References 7 publications

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Influence of surface functionalization of ceramic nanofibers on morphological, physical and mechanical properties of unsaturated polyester nanocomposites

The³He nuclear magnetic relaxation in nematically ordered Al₂O₃ aerogels: effects of ⁴He and nitrogen pre-plating

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Development of Heat Resistant Aluminum Composite with Minor Addition of Alumina Nanofibers (Nafen™)

Cited by 4 publications

References 7 publications

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Influence of surface functionalization of ceramic nanofibers on morphological, physical and mechanical properties of unsaturated polyester nanocomposites

The3He nuclear magnetic relaxation in nematically ordered Al2O3 aerogels: effects of 4He and nitrogen pre-plating

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The³He nuclear magnetic relaxation in nematically ordered Al₂O₃ aerogels: effects of ⁴He and nitrogen pre-plating