Study of the mechanism of amorphization by mechanical alloying

Petzoldt, F.; Scholz, B.; Kunze, H.–D.

doi:10.1016/0167-577x(87)90111-x

Cited by 43 publications

(8 citation statements)

References 11 publications

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“…It is believed that the specimen is heated at the expense of the energy of collision of balls and the temperature increases to hundreds of degrees, but it does remain inadequate to attain crystallisation of an amorphous alloy. This point of view was confirmed by Petzoldt et al 370 The authors observed amorphous interlayers between layers of nickel and niobium by electron microscopy. These interlayers are analogous to those between layers of nickel and zirconium observed by Meng et al 371 in experiments on annealing of sputtered films.…”

Section: 5supporting

confidence: 65%

Mechanochemical synthesis of intermetallic compounds

Grigorieva¹,

Barinova²,

Lyakhov³

2001

Russ. Chem. Rev.

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The current state of studies on the mechanochemical The current state of studies on the mechanochemical synthesis of binary metallic systems is considered. It is shown that synthesis of binary metallic systems is considered. It is shown that this method is suitable for the preparation of intermetallic com-this method is suitable for the preparation of intermetallic compounds and solid solutions in concentration limits of equilibrium pounds and solid solutions in concentration limits of equilibrium diagrams of many binary systems. The mechanochemical diagrams of many binary systems. The mechanochemical approach is demonstrated to exhibit the most promise for prepar-approach is demonstrated to exhibit the most promise for preparing intermetallic compounds in systems characterised by large ing intermetallic compounds in systems characterised by large differences in the melting points and in the densities of the initial differences in the melting points and in the densities of the initial components as well as phases with nanometer grain sizes and components as well as phases with nanometer grain sizes and metastable phases. The major factors, which influence the con-metastable phases. The major factors, which influence the concentration limits of existence of non-equilibrium solid solutions centration limits of existence of non-equilibrium solid solutions prepared by the mechanochemical method, are revealed. Using prepared by the mechanochemical method, are revealed. Using numerous examples, it is demonstrated that the formation of solid numerous examples, it is demonstrated that the formation of solid solutions may involve several stages. At the first stage, nanosized solutions may involve several stages. At the first stage, nanosized layered composite structures are formed with simultaneous dis-layered composite structures are formed with simultaneous dispersion of the initial components (the formation of a large contact persion of the initial components (the formation of a large contact area). The second stage involves the synthesis of intermetallic area). The second stage involves the synthesis of intermetallic compounds in nanosized layered composites. At the third step, the compounds in nanosized layered composites. At the third step, the intermetallic compounds are dissolved in a metal solvent to give a intermetallic compounds are dissolved in a metal solvent to give a solid solution. The bibliography includes 397 references solid solution. The bibliography includes 397 references. .

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Section: 5supporting

confidence: 65%

Mechanochemical synthesis of intermetallic compounds

Grigorieva¹,

Barinova²,

Lyakhov³

2001

Russ. Chem. Rev.

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“…Petzoldt et al(54,55) have carried out transmission electron microscopy (TEM) on MA Ni6oNb4o powder. (0) Nb (110) line, (0) Ni (111) line, (0) NI (11 I) line with Nb (110) visible as a shoulder, (.)…”

mentioning

confidence: 99%

Materials Synthesis by Mechanical Alloying

Koch¹

1989

Annu. Rev. Mater. Sci.

383

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“…All of these parameters can influence the thermodynamics and kinetics of amorphization reactions during MA [9]. The amorphization of these alloy systems using high energy ball mills has been previously reported [9][10][11]. However, the MA behavior has not been followed in detail due to the rapid processing times used in high energy ball mills.…”

Section: Introductionmentioning

confidence: 95%

Two-stage amorphization reaction in Ni–Nb–Zr system

Dastanpoor

2015

Advanced Powder Technology

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Study of the mechanism of amorphization by mechanical alloying

Cited by 43 publications

References 11 publications

Mechanochemical synthesis of intermetallic compounds

Mechanochemical synthesis of intermetallic compounds

Materials Synthesis by Mechanical Alloying

Two-stage amorphization reaction in Ni–Nb–Zr system

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