Micrograded ceramic-metal composites

Restivo, Thomaz Augusto Guisard; Beccari, Rafael Fonseca; Padilha, Wellington Rafael; Durazzo, Michelangelo; Telles, Victor Bridi; Coleti, Jorge Luís; Yamagata, Chieko; Silva, Antonio Carlos da; Suzuki, Eduardo Matheus Ricciardi; Tenório, Jorge Alberto Soares; Mello-Castanho, Sonia Regina Homem de

doi:10.1016/j.jeurceramsoc.2019.03.018

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…For thermal barrier coatings and multifunctional devices, the mulliterefractory metals (Mo Nb) composites are used [23]. ZrO 2 and Ni make composites for application as thermal insulation material [24]. The combination of ZrO 2 with Ni gives a material with high strength and heat insulation, especially graded composite, i.e., porous ZrO 2 -(ZrO 2 + Ni) can be used in aerospace engineering for bolted joints [25].…”

Section: Conventional Cmcsmentioning

confidence: 99%

Particle-Reinforced Ceramic Matrix Composites—Selected Examples

Konopka

2022

J. Compos. Sci.

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This paper presents some examples of ceramic matrix composites (CMCs) reinforced with metal or intermetallic phases fabricated by powder consolidation without a liquid phase (melted metal). Composites with a complex structure, which are an advanced group of CMCs called hybrid composites, were described in contrast to conventional composites with a ceramic matrix. In advanced CMCs, their complex structures make it possible to achieve the synergistic effect of the micro- and nanoparticles of the metallic, intermetallic, and ceramic phases on the composite properties, which is not possible in conventional materials. Various combinations of substrates in the form of powder as more than one metal and ceramics with different powder sizes that are used to form hybrid composites were analyzed. The types of CMC microstructures, together with their geometrical schemas and some examples of real ceramic matrix composites, were described. The schemas of composite microstructures showed the possible location of the ceramic, metallic, or intermetallic phases in composites. A new concept of an advanced ceramic–intermetallic composite fabricated by the consolidation of pre-composite powder mixed with ceramic powder was also presented. This concept is based on the selection of substrates, two metals in the form of powder, which will form a new compound, intermetallic material, during processing. Metal powders were milled with ceramic powders to obtain a pre-composite powder consisting of intermetallic material and ceramics. In the next step, the consolidation of pre-composite powder with ceramic powder allows the creation of composites with complex microstructures. Selected examples of real particle-reinforced conventional and hybrid microstructures based on our own investigations were presented. In addition to microstructures, the properties and possible applications of CMCs were analyzed.

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Section: Conventional Cmcsmentioning

confidence: 99%

Particle-Reinforced Ceramic Matrix Composites—Selected Examples

Konopka

2022

J. Compos. Sci.

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“…This is why they are not used on elements working under high load. This problem may be the production of a ceramic matrix composite with a metallic phase (Guzanová et al 2019;Restivo et al 2019;Rebak 2020;Hufenbach and Gerhardy 1996). Various ceramic materials are currently used to form ceramic-metal composites, both in the monocrystalline and polycrystalline form (Pyzik et al 1987).…”

Section: Introductionmentioning

confidence: 99%

Investigation on microstructure and selected properties of aluminum oxide–copper–nickel ceramic–metal composites

Zygmuntowicz

Kosiorek

Piotrkiewiecz

et al. 2021

Int. J. Environ. Sci. Technol.

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A new ternary system of ceramic–metal composites has been fabricated from alumina, copper, and nickel powders by the slip casting method. The research aimed to avoid copper leaking during the sintering process of the formation while processing the CuNi phase. Five different compositions were examined, differing in the ratio of nickel to copper. Stable slurries with good casting properties were prepared for all compositions. The final composites after the sintering process were characterized by a homogeneous distribution of the metallic phase, but they differed in the microstructure characteristics. The addition of nickel limits the outflow of the liquid phase (copper) during sintering but does not eliminate it. This resulted in a reduction in the hardness of the samples compared to the reference material.

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“…Современную промышленность невозможно представить без металлокерамических композиционных материалов (МКМ). Повышение эксплуатационных свойств деталей машин, подвергающихся интенсивному износу, является одной из важнейших задач материаловедения [1][2][3][4]. Для повышения эксплуатационных свойств путем нанесения защитных покрытий перспективным считается метод электроискрового легирования (ЭИЛ).…”

Section: Introductionunclassified

The effect of aluminum nitride nanoparticles on the structure, phase composition and properties of materials of the Ti-B-Fe system obtained by SHS-extrusion

et al. 2020

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The SHS-extrusion method, which combines the combustion processes in the mode of self-propagating high-temperature synthesis (SHS) and the subsequent high temperature shear deformation of the combustion products, was used to obtain metal-ceramic composite materials based on titanium boride with an iron matrix modified by additives of nanoaluminum nitride of grade SHS-Az. It was shown that small additions of nanoscale aluminum nitride powder (3 and 5 wt.%) to the initial mixture of the Ti-B-Fe system had a significant effect on the temperature and combustion rate of the system: the combustion rate decreased from 16 to 9 mm / s and the combustion temperature from 1830-1900°C to 1730-1780°C. The results of X-ray phase analysis showed that the modifying AlN nanopowder decomposed during the SHS process and interacted with titanium and iron matrix forming additional phases of TiN and AlFe 3. This is the main cause of the reduction of the temperature and combustion rate during synthesis. A refinement of the grains of titanium diboride in the modified samples from 0.5-2.5 μm to 0.1-1.5 μm was observed using a scanning electron microscope. Microhardness measurements showed that the obtained compact metal-ceramic materials modified with the nanoscale AlN powder had 10 % higher microhardness values compared to samples without additives.

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Micrograded ceramic-metal composites

Cited by 6 publications

References 6 publications

Particle-Reinforced Ceramic Matrix Composites—Selected Examples

Particle-Reinforced Ceramic Matrix Composites—Selected Examples

Investigation on microstructure and selected properties of aluminum oxide–copper–nickel ceramic–metal composites

The effect of aluminum nitride nanoparticles on the structure, phase composition and properties of materials of the Ti-B-Fe system obtained by SHS-extrusion

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