CobaltMaghrebV1, Main, Exploration, bibRecord, 000632

Monitoring of metal powder by eddy current

Identifieur interne : 000632 ( Main/Exploration ); précédent : 000631; suivant : 000633

Monitoring of metal powder by eddy current

Auteurs : Ahmed Haddad [Algérie] ; Mourad Zergoug [Algérie] ; Mohamed Azzaz [Algérie] ; Abdelhamid Tafat [Algérie] ; Said Bergheul [Algérie]

Source :

International journal of microstructure and materials properties : (Print) [ 1741-8410 ] ; 2010.

RBID : Pascal:10-0303944

Descripteurs français

Pascal (Inist)
- Courant Foucault, Alliage mécanique, Broyeur satellite, Broyeur boulet, Microscopie électronique balayage, Diffraction RX, Dimension particule, Essai non destructif, Alliage binaire, Monitorage, Densité, Poudre métallique, Nanocristal, Nickel alliage, Fer alliage, Cobalt alliage, Alliage ternaire, Métal transition alliage.

English descriptors

KwdEn :
- Ball mill, Binary alloys, Cobalt alloys, Density, Eddy currents, Iron alloys, Mechanical alloying, Metal powder, Monitoring, Nanocrystal, Nickel alloys, Nondestructive testing, Particle size, Planetary mill, Scanning electron microscopy, Ternary alloys, Transition element alloys, XRD.

Abstract

Nanocrystalline Fe_(1-x)Co_x, Fe, Fe₈₀Ni₂₀,Cu₇₀Fe₁₈Co₁₂ mixtures have been prepared by mechanical alloying using a planetary ball mill under several milling conditions. Their structures and magnetic properties were investigated. Mechanical alloying is a non-balanced process for synthesis materials. The structural effects of mechanical alloying of powders were investigated by scanning X-ray diffraction analysis. In this report, we examine the applicability of eddy current techniques in-process for monitoring of powder density particle size and the time necessary to structure variation. An eddy current based monitoring system developed to measure metal powder density is expanded for monitoring metal powder diameter in metal compounds. Experimental sensor readings were gathered using four different metal powders with known particle sizes Fe_(1-x) Co_x, Fe, Fe₈₀Ni₂₀ and Cu₇₀Fe₁₈Co₁₂. Analysis of the data showed that the sensor output was in relation with different parameter of powder (diameter, density and structure) that the sensitivity of the sensor differed with the type of metal powder. The merit of this technique is its reliance on a simple and inexpensive sensor probe.

Affiliations:

Algérie

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Nanocrystalline Fe<sub>(1-x)</sub>
Co<sub>x</sub>
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Ni<sub>20</sub>
,Cu<sub>70</sub>
Fe<sub>18</sub>
Co<sub>12</sub>
 mixtures have been prepared by mechanical alloying using a planetary ball mill under several milling conditions. Their structures and magnetic properties were investigated. Mechanical alloying is a non-balanced process for synthesis materials. The structural effects of mechanical alloying of powders were investigated by scanning X-ray diffraction analysis. In this report, we examine the applicability of eddy current techniques in-process for monitoring of powder density particle size and the time necessary to structure variation. An eddy current based monitoring system developed to measure metal powder density is expanded for monitoring metal powder diameter in metal compounds. Experimental sensor readings were gathered using four different metal powders with known particle sizes Fe<sub>(1-x)</sub>
 Co<sub>x</sub>
, Fe, Fe<sub>80</sub>
Ni<sub>20</sub>
 and Cu<sub>70</sub>
Fe<sub>18</sub>
Co<sub>12</sub>
. Analysis of the data showed that the sensor output was in relation with different parameter of powder (diameter, density and structure) that the sensitivity of the sensor differed with the type of metal powder. The merit of this technique is its reliance on a simple and inexpensive sensor probe.</div>
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Serveur d'exploration sur le cobalt au Maghreb

Monitoring of metal powder by eddy current

Monitoring of metal powder by eddy current

Source :

Descripteurs français

English descriptors

Abstract

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