Nanocrystalline TiAl powders synthesized by high-energy ball milling: effects of milling parameters on yield and contamination

2004 ◽  
Vol 368 (1-2) ◽  
pp. 187-196 ◽  
Author(s):  
Prajina Bhattacharya ◽  
Pascal Bellon ◽  
Robert S Averback ◽  
Stephen J Hales
Keyword(s):  
Ball Milling ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Milling Parameters ◽  
Energy Ball

An Investigation on the Mechanical Alloying of TiFe Compound by High-Energy Ball Milling

2010 ◽  
Vol 660-661 ◽  
pp. 329-334 ◽  
Author(s):  
Railson Bolsoni Falcão ◽  
Edgar Djalma Campos Carneiro Dammann ◽  
Cláudio José da Rocha ◽  
Ricardo Mendes Leal Neto
Keyword(s):  
Ball Milling ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Powder Mixtures ◽  
Milling Parameters ◽  
Process Route ◽  
Partial Formation ◽  
Energy Ball

This work reports the efforts to obtain TiFe intermetallic compound by high-energy ball milling of Ti and Fe powder mixtures. This process route has been used to provide a better hydrogen intake in this compound. Milling was carried out in a SPEX mill at different times. Strong adherence of material at the vial walls was seen to be the main problem at milling times higher than 1 hour. Attempts to solve this problem were accomplished by adding different process control agents, like ethanol, stearic acid, low density polyethylene, benzene and cyclohexane at variable quantities and keeping constant other milling parameters like ball to powder ration and balls size. Better results were attained with benzene and cyclohexane, but with partial formation of TiFe compound even after a heat treatment (annealing) of the milled samples.

The Influence of High-Energy Ball Milling Parameters on the Traditional W-Type Ba-Hexaferrite Properties

2008 ◽  
Vol 589 ◽  
pp. 397-402
Author(s):  
Gyula Kakuk ◽  
Ágnes Csanády ◽  
István E. Sajó ◽  
Katalin Papp ◽  
Péter Németh ◽  
...  
Keyword(s):  
Ball Milling ◽  
High Energy ◽  
Milling Process ◽  
High Energy Ball Milling ◽  
Main Task ◽  
Milling Parameters ◽  
Sem And Tem ◽  
Crystallite Sizes ◽  
Energy Ball ◽  
Magnetic Features

The main task of our work was to study the influence of high energy ball milling on the process of W-type hexaferrite material production and to compare the structural, morphological and magnetic features of the different manufacturing ways. The products are analyzed mainly by XRD, SEM and TEM methods. It was shown that high energy ball milling can be used to enhance the synthesis of W-type Ba-hexaferrite due to the much smaller crystallite sizes and their larger surfaces that are produced by the milling process and due to the activation of these surfaces.

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