Engineering, Manufacturing, and Servicing of Shaped and Unshaped Refractories Based on Highly Concentrated Ceramic Binding Suspensions

Pivinskii, Yu. E.; Grishpun, E. M.; Gorokhovskii, A. M.

doi:10.1007/s11148-015-9823-3

Cited by 29 publications

(3 citation statements)

References 6 publications

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“…The annealing precursors at 1600 °C gave a ceramic nanocomposite with promising application of high temperature and aggressive environment conditions [10][11][12].…”

Section: Proposalmentioning

confidence: 99%

Ceramic Nanomaterials for High Temperature Applications

Gamero¹

2018

RDMS

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Ceramic nanomaterials have exhibited extraordinary characteristics, based in its low density, hardness and when properly engineered, good corrosion properties in high temperature applications. In the nanoscale world, we can find nanomaterials that do not necessarily apply to the correlation of strength and density. It has been studied that ceramic nanomaterials have some control boundaries that are critical in high temperature applications; grain sizes, grain boundaries density, operating conditions (thermal cycles), nano-crystalline structure and large voids (because of the porous nature of ceramic materials).In this research paper, it will be discussed some of the most important applications, processing methods and several adhesion methods to metal substrates with the final purpose to enhance metal properties and mitigate high temperature corrosion. As a quick review, it will be discussed some of the environmental health & safety (EHS) concerns and some parallel experiments that could be done for reinforcing the investigations done in this subject.

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“…The annealing precursors at 1600 °C gave a ceramic nanocomposite with promising application of high temperature and aggressive environment conditions [10][11][12].…”

Section: Proposalmentioning

confidence: 99%

Ceramic Nanomaterials for High Temperature Applications

Gamero¹

2018

RDMS

View full text Add to dashboard Cite

show abstract

“…The annealing precursors at 1600 °C gave a ceramic nanocomposite with promising application of high temperature and aggressive environment conditions [10][11][12].…”

Section: Proposalmentioning

confidence: 99%

Ceramic Nanomaterials for High Temperature Applications

Gamero¹

2017

RDMS

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One of the most studied applications is the use of ceramic nanoparticles as pigments to enhance the material properties and products life-cycle. This application is more focused to polymers. The idea is a mitigation of the polymer degradation that can be observed when exposed to ultraviolet light. It has been observed that with the proper blending and binder's ratio, the mechanical and elevated temperature properties can be improved. Ceramic pigments have shown to be a good option in the nano-level for high quality coatings. As reported by Sankar S et al. [1] ceramic pigments show good impact-resistance for ferrous metals and its application in corrosive environments as well as high temperature applications based in the thermal behavior of the coating.One of the most important applications for this nano-materials, it's the direct application to aggressive environments or high temperature applications like nozzle tips for the inside combustion parts in the automotive industry or its use in turbomachinery, more specific, in combustion and hot gas path components of aviation engines or heavy duty gas turbines for the power business. For being able to apply this technology, it is important to consider the adhesion into the metal substrate of the ceramic coating, where spallation, cracking or not-homogeneous distribution can be observed when improperly added together.As reported by Vert R et al.[2] air plasma spraying technique was used for making a thin film of few micrometers thick, where it was confirmed by Vickers indentation and tensile tests, the compatibility of these two different materials (metal substrate with a ceramic coating). Processing MethodsThere are several processing methods that will be briefly discussed in this section, some of this are in experimental phase as nano-powder infiltrated transient eutectic phase (NITE) process, sol-gel method and carbon nanotubes. As reported by Kuznetsov NT [3], NITE based in the use of silicon carbide nano-powders and its mixture of yttrium and aluminum oxides to be subjected to a temperature of 1800-1950 °C at a pressure of 15-20MPA (usually referred as hot pressing) so that the melted film favors the orientation and a good matrix control of the nanoparticles.With NITE method, good mechanical characteristics are exhibited along with stress limit of 400MPA and an elasticity modulus of 310GPA with good oxidation resistance. Figure 1 shows a cross section of SiC/SiC NITE micrograph, composite material suitable for high temperature applications. It can be clearly distinguished the fiber from the matrix and its interaction.Sankar et al. [3], was a silicone resin binder developed by high temperature ceramic pigment nanoparticles with a high hardness that can be used under high temperature or aggressive environment applications. The preparation of the ceramic pigments was through Ceramic Nanomaterials for High Temperature ApplicationsCopyright © All rights are reserved by Mikhail Gamero. AbstractCeramic nanomaterials have exhibited extraordinary characteristics, based...

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“…The process of forming ceramics through hot casting involves several stages [ [2], [6], [7], [8], [9], [10], [11]]: movement and heat exchange in the liquid state; movement and heat exchange in the amorphous state; movement and heat exchange in the solid-plastic state.…”

Section: Introductionmentioning

confidence: 99%

Calculation of the thermoplastic beryllium oxide slurry molding with ultrasonic activation

Zhapbasbayev,

Ramazanova,

Terekhov

et al. 2024

KIMS/CUMR/MShKP

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The article presents the results of assessing thermal shrinkage during the formation of beryllium oxide ceramics using the hot casting method. The thermoplastic slurry is a composite system with a dispersion medium (binder) that has a very low thermal conductivity compared to the dispersed phase (beryllium oxide). Ultrasonic treatment reduces the viscosity of the slurry and improves its casting properties. The formation of beryllium oxide slurry is carried out without disrupting the integrity of the system and depends on the casting speed and temperature factors. The combined influence of these factors determines the casting properties of the slurry. Cooling - solidification of the slurry in the casting mold occurs in stages in the liquid, amorphous states with a phase transition, and in the viscoplastic state of the casting. The cooling rate of the casting at all stages depends on the cavity design, the rheological properties of the slurry, and the casting process parameters. It is important to maintain the integrity of the casting due to temperature shrinkage.

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Engineering, Manufacturing, and Servicing of Shaped and Unshaped Refractories Based on Highly Concentrated Ceramic Binding Suspensions

Cited by 29 publications

References 6 publications

Ceramic Nanomaterials for High Temperature Applications

Ceramic Nanomaterials for High Temperature Applications

Ceramic Nanomaterials for High Temperature Applications

Calculation of the thermoplastic beryllium oxide slurry molding with ultrasonic activation

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