Microwave-assisted sintering of zircon

Ebadzadeh, Touradj; Valefi, M.

doi:10.1016/j.jallcom.2007.02.032

Cited by 54 publications

(27 citation statements)

References 5 publications

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“…Microwave radiation of ceramic components has recently gained new relevance in the field of sintering and joining of ceramics due to its advantages against conventional heating techniques [14]. The important characteristics associated to microwave process are such as rapid and uniform volumetric heating, improved production rate, enhancement in densification and grain growth prohibition of ceramics [15][16][17] and, most importantly it is possible to obtain directly materials without any carbon contamination. This supposes other significant advantage compared with the spark plasma sintering fast method [18].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of near-zero thermal expansion of fully dense β-eucryptite ceramics by microwave sintering

Benavente

Borrell

Salvador

et al. 2014

Ceramics International

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Microwave heating is proposed as non-conventional technique for the sintering of optimal lithium aluminosilicate compositions of E-eucryptite system. The coefficient of thermal expansion and mechanical properties of the sintered samples has been studied under the influence of microwave heating.The ad hoc synthesized E-eucryptite together with the microwave sintering Results of the coefficient of thermal expansion of the E-eucryptite ceramics presented here under cryogenic conditions will be of value, for example, in the future design of new composite materials for space applications.

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Section: Introductionmentioning

confidence: 99%

Fabrication of near-zero thermal expansion of fully dense β-eucryptite ceramics by microwave sintering

Benavente

Borrell

Salvador

et al. 2014

Ceramics International

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“…Microwave sintering has several advantages such as rapid end volumetric heating, improved production rate, enhancement in densification and grain growth prohibition of ceramics [17][18][19]. This technique generally uses a frequency of 2.45 GHz resulting in relatively rapid heating rates with uniform grained microstructures and has been employed for the sintering of a wide variety of ceramics ranging from dielectric materials to transparent ceramics.…”

Section: Introductionmentioning

confidence: 99%

Improvement of microstructural properties of 3Y-TZP materials by conventional and non-conventional sintering techniques

Borrell

Salvador

Rayón

et al. 2012

Ceramics International

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Abstract3 mol% Y 2 O 3 -stabilized zirconia nanopowders were fabricated using various sintering techniques; conventional sintering (CS) and non-conventional sintering such as microwave (MW) and pulsed electric current-assisted-sintering (PECS) at 1300 ºC and 1400 ºC. A considerable difference in the densification behaviour between conventional and non-conventional sintered specimens was observed. The MW materials attain a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 bulk density 99.4% theoretical density (t.d.) at 1300 ºC, while the CS materials attain only 92.5% t.d. and PECS 98.7% t.d. Detailed microstructural evaluation indicated that a low temperature densification leading to finer grain sizes (135 nm) could be achieved by PECS followed by MW with an average sintered grain size of 188 nm and CS 225 nm. It is believed that the high heating rate and effective particle packing are responsible for the improvements in these properties. *Manuscript Click here to view linked References

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“…In microwave sintering, oscillations of free electrons at high frequency (~2.45-28 GHz) created by microwave field result in fast volumetric heating [33][34][35]. This fast sintering method improves the mechanical properties by maintaining a fine grain structure.…”

Section: Introductionmentioning

confidence: 99%

Electrical and mechanical properties of Cu-CNT nanocomposites sintered by microwave technique

Darabi

Rajabi

2018

Metall Mater Eng

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In this research, multiwall carbon nanotubes were dispersed in a copper matrix using a planetary ball mill. The mixed powders were compacted using a uniaxial hydraulic presser. A novel method of microwave sintering was applied to consolidate Cu-CNT nanocomposites Conventional sintering method was also used to sinter samples to investigate the effects of applied methods on the properties of the sample. Sintering time was reduced to 20 min using microwave sintering method. The morphology and phase analysis of nanocomposites were studied by FESEM and XRD. The physical and mechanical properties of Cu-CNT nanocomposites were characterized using electrical conductivity, bending strength, and micro-hardness. The results show that the mechanical properties of Cu-CNT nanocomposites are improved significantly by microwave route. The optimum hardness and bending strength were obtained for 4 vol. % CNT as an optimum amount of reinforcement.

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Microwave-assisted sintering of zircon

Cited by 54 publications

References 5 publications

Fabrication of near-zero thermal expansion of fully dense β-eucryptite ceramics by microwave sintering

Fabrication of near-zero thermal expansion of fully dense β-eucryptite ceramics by microwave sintering

Improvement of microstructural properties of 3Y-TZP materials by conventional and non-conventional sintering techniques

Electrical and mechanical properties of Cu-CNT nanocomposites sintered by microwave technique

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