Processing and Characterization of Alumina/ Chromium Carbide Ceramic Nanocomposite

Huang, Jow-Lay; Nayak, Pramoda K.

doi:10.5772/17899

Cited by 6 publications

(2 citation statements)

References 64 publications

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“…The higher temperature leads to lattice expansion, which will drive the peak shift to lower angle due to a decrease in an internal strain of the lattice. Such a conclusion is in good agreement with those reported in the literature 47,48 …”

Section: Resultssupporting

confidence: 93%

Near‐net shape manufacture of macroporous nanosized alumina monolith by aqueous gel casting method

Hosseinzadeh

Sarpoolaky

2020

Int J Applied Ceramic Tech

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A potentially near‐net‐shape manufacturing procedure for macroporous alumina monoliths with 20%‐75% porosity was presented by gel casting of nano γ‐Al2O3. Although monolith obtained by nano alumina had a high surface area and low sintering temperature, an optimum fraction of micron alumina needed to be added to achieve the proper rheological and mechanical properties of slurries. The preparation parameters including alumina loading, sintering temperature, monomer concentration, and the fraction of nano alumina were investigated. The green densities ranging from 0.66 to 0.86 g cm−3 were obtained by raising alumina loading from 10 to 20 vol%. Depending on the monomer concentration and sintering temperature, the mean pore size ranging from 45 to 412 nm, total porosity (20%–75%), and open porosity varying from 12% to 89% were obtained. The sintered density (from 0.95 to 3.15 g cm−3) and compressive strength (CS) (from 4.2 to 31.46 MPa) were suitable for use in different fields.

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Section: Resultssupporting

confidence: 93%

Near‐net shape manufacture of macroporous nanosized alumina monolith by aqueous gel casting method

Hosseinzadeh

Sarpoolaky

2020

Int J Applied Ceramic Tech

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“…Among the many new structural materials, a special place is occupied by composites based on oxide ceramics [1]. Alumina ceramics due to its mechanical properties, chemical resistance and high operating temperature, and most importantlyeasy manufacturing and relative low price, found application in various devices.…”

Section: Introductionmentioning

confidence: 99%

The mechanism of current flow in composite alumochromiun ceramics during its electron beam sintering in a forevacuum

et al. 2023

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It is shown that during electron beam sintering in the forevacuum pressure region of powder components of composite Al2O3-Cr ceramics, the magnitude of the current flowing through the sample depends both on the percentage of chromium and on the heating temperature of the sample. When a certain temperature is reached, the process of current flow is influenced by thermoelectric emission from the sample surface. Along with the ions from the beam plasma, a noticeable thermoelectric emission current contributes to the process of neutralizing the charging of the ceramic surface with an electron beam and reduces the absolute value of the negative potential of the sample surface. This ultimately contributes to an increase in the efficiency of energy transfer from the electron beam to the sample. Keywords: Electron beam irradiation of oxide ceramics, electrical conductivity, alumina ceramics, chromium, composite, electron beam, forevacuum.

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Synthesis and consolidation of (Zr0.94Y0.06)O1.88 nanopowders

Сирота

Ivanisenko

Pavlenko

et al. 2015

Ceramics International

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Processing and Characterization of Alumina/ Chromium Carbide Ceramic Nanocomposite

Cited by 6 publications

References 64 publications

Near‐net shape manufacture of macroporous nanosized alumina monolith by aqueous gel casting method

Near‐net shape manufacture of macroporous nanosized alumina monolith by aqueous gel casting method

The mechanism of current flow in composite alumochromiun ceramics during its electron beam sintering in a forevacuum

Synthesis and consolidation of (Zr0.94Y0.06)O1.88 nanopowders

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