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Spark plasma sintering of alumina nanopowders produced by electrical explosion of wires.

An V, Khasanov A, de Izarra C - Springerplus (2015)

Bottom Line: Alumina nanopowders produced by electrical explosion of wires were sintered using the spark plasma sintering technique.The results of XRD analysis show that the main phase in the compacted nanopowders is α-Al2O3.The increase in sintering temperature resulted in a higher density of the sintered powders: from 78.44 to 98.21 % of theoretical density.

View Article: PubMed Central - PubMed

Affiliation: Institute of High Technology Physics, National Research Tomsk Polytechnic University, 30 Lenin Ave., 634050 Tomsk, Russia.

ABSTRACT
Alumina nanopowders produced by electrical explosion of wires were sintered using the spark plasma sintering technique. The results of XRD analysis show that the main phase in the compacted nanopowders is α-Al2O3. According to the SEM observations, the sintered alumina nanopowder consists of micron-sized faceted grains and nano-sized necked grains. The increase in sintering temperature resulted in a higher density of the sintered powders: from 78.44 to 98.21 % of theoretical density.

No MeSH data available.


X-ray pattern of the alumina nanopowder produced by electrical explosion of wires
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Fig2: X-ray pattern of the alumina nanopowder produced by electrical explosion of wires

Mentions: XRD analysis was carried out in order to characterize the phase and crystal structure of the alumina nanopowder samples produced by electrical explosion of wires. The X-ray pattern of the sample (Fig. 2) was analyzed to detect different polymorph alumina structures in the as-prepared powder. According to the data of X-ray analysis, the main phases in the products are γ-Al2O3 and δ-Al2O3. According to the intensity of peaks, the dominant phase is γ-Al2O3.Fig. 2


Spark plasma sintering of alumina nanopowders produced by electrical explosion of wires.

An V, Khasanov A, de Izarra C - Springerplus (2015)

X-ray pattern of the alumina nanopowder produced by electrical explosion of wires
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4627989&req=5

Fig2: X-ray pattern of the alumina nanopowder produced by electrical explosion of wires
Mentions: XRD analysis was carried out in order to characterize the phase and crystal structure of the alumina nanopowder samples produced by electrical explosion of wires. The X-ray pattern of the sample (Fig. 2) was analyzed to detect different polymorph alumina structures in the as-prepared powder. According to the data of X-ray analysis, the main phases in the products are γ-Al2O3 and δ-Al2O3. According to the intensity of peaks, the dominant phase is γ-Al2O3.Fig. 2

Bottom Line: Alumina nanopowders produced by electrical explosion of wires were sintered using the spark plasma sintering technique.The results of XRD analysis show that the main phase in the compacted nanopowders is α-Al2O3.The increase in sintering temperature resulted in a higher density of the sintered powders: from 78.44 to 98.21 % of theoretical density.

View Article: PubMed Central - PubMed

Affiliation: Institute of High Technology Physics, National Research Tomsk Polytechnic University, 30 Lenin Ave., 634050 Tomsk, Russia.

ABSTRACT
Alumina nanopowders produced by electrical explosion of wires were sintered using the spark plasma sintering technique. The results of XRD analysis show that the main phase in the compacted nanopowders is α-Al2O3. According to the SEM observations, the sintered alumina nanopowder consists of micron-sized faceted grains and nano-sized necked grains. The increase in sintering temperature resulted in a higher density of the sintered powders: from 78.44 to 98.21 % of theoretical density.

No MeSH data available.