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12 Mar

Preparation and characterization of hydroxyapatite from eggshell

Hydroxyapatite (HAp) was successfully produced by using recycled eggshell. The observed phases of the synthesised materials were dependent on the mechanochemical activation method (ball milling and attrition milling). The structures of the HAp were characterized by X-ray diffraction, scanning electron microscopy and infrared spectroscopy. Attrition...

21:16 / Información Técnica Estudios Union Process
12 Mar

Size Effects in Micro- and Nanocarbon added C/Si3N4 Composite Prepared by Hot Pressing

Silicon nitride based composites have been fabricated by carbon addition. Carbon black nanograins and graphite micrograins were used as second phase additions. Alumina and yttria were used as sintering aids. Mixing of powders was performed in a ball mill and for comparison in a high...

21:13 / Información Técnica Estudios Union Process
12 Mar

Structural Properties Of Nano- Steel Powders Prepared By Powder Metallurgy

In this paper, the first results of preparation and structural characterization of the nanostructured strengthened steels are presented. The samples were prepared by powder technology. A high energy milling process at different parameters has been applied to strengthened steel powder production. The high efficient attrition...

21:10 / Información Técnica Estudios Union Process
12 Mar

Production of Fine Particulate Ultra High MW Poly

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21:08 / Información Técnica Estudios Union Process
12 Mar

Processing of Mechanically Alloyed Amorphous Co85Zr15

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21:05 / Información Técnica Estudios Union Process
12 Mar

The effect of milling time on the sintering kinetics of Si3N4 based nanocomposites

Multi-walled carbon nanotube (MWCNT) reinforced silicon nitride composites have been prepared by hot isostatic pressing at 20 MPa and gas pressure sintering at 2 MPa. To assure a good dispersion of the MWCNTs a highly efficient attritor milling was employed in the preparation process of...

21:03 / Información Técnica Estudios Union Process
12 Mar

Preparation Of Nano-Oxide Dispersed Steel Powders By Powder Metallurgy

Nanostructured steels may be realized by two different methods. There is well-known the „top-down” method where taking account the grain size the technological step, like Severe Plastic Deformation (SPD) are developing from top to down. The other „bottom-up” method is starting from individual grains and...

21:00 / Información Técnica Estudios Union Process
12 Mar

Milling Dynamics

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20:58 / Información Técnica Estudios Union Process
12 Mar

Micronized High Purity Alumina

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20:56 / Información Técnica Estudios Union Process
12 Mar

Mechanical Alloying

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20:54 / Información Técnica Estudios Union Process
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