Formation mechanism and nanocrystalline phase transformation of molybdenum disilicide by mechanical alloying

Peng Chao Kang; Zhong Da Yin

doi:10.1088/0957-4484/15/7/025

Formation mechanism and nanocrystalline phase transformation of molybdenum disilicide by mechanical alloying

Peng Chao Kang^*
, Zhong Da Yin

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The formation mechanism of stoichiometric MoSi₂ by mechanical alloying (MA) from elemental powders has been investigated. The experimental results demonstrate that molybdenum disilicide can be synthesized by MA through different formation mechanisms, which are governed by the milling energy. MoSi₂ is formed by the mechanism of self-propagating high-temperature synthesis (SHS) at high rotational speeds and most likely by the mechanism of a mechanical collision reaction (MCR) at lower rotational speeds. Nanocrystalline phase transformation of α → β occurs during MA when the crystallite size decreases to approximately 8 nm; the final product of MA is β-MoSi₂.

Original language	English
Pages (from-to)	851-855
Number of pages	5
Journal	Nanotechnology
Volume	15
Issue number	7
DOIs	https://doi.org/10.1088/0957-4484/15/7/025
State	Published - Jul 2004
Externally published	Yes

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title = "Formation mechanism and nanocrystalline phase transformation of molybdenum disilicide by mechanical alloying",

abstract = "The formation mechanism of stoichiometric MoSi2 by mechanical alloying (MA) from elemental powders has been investigated. The experimental results demonstrate that molybdenum disilicide can be synthesized by MA through different formation mechanisms, which are governed by the milling energy. MoSi2 is formed by the mechanism of self-propagating high-temperature synthesis (SHS) at high rotational speeds and most likely by the mechanism of a mechanical collision reaction (MCR) at lower rotational speeds. Nanocrystalline phase transformation of α → β occurs during MA when the crystallite size decreases to approximately 8 nm; the final product of MA is β-MoSi2.",

author = "Kang, \{Peng Chao\} and Yin, \{Zhong Da\}",

year = "2004",

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doi = "10.1088/0957-4484/15/7/025",

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AU - Kang, Peng Chao

AU - Yin, Zhong Da

PY - 2004/7

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N2 - The formation mechanism of stoichiometric MoSi2 by mechanical alloying (MA) from elemental powders has been investigated. The experimental results demonstrate that molybdenum disilicide can be synthesized by MA through different formation mechanisms, which are governed by the milling energy. MoSi2 is formed by the mechanism of self-propagating high-temperature synthesis (SHS) at high rotational speeds and most likely by the mechanism of a mechanical collision reaction (MCR) at lower rotational speeds. Nanocrystalline phase transformation of α → β occurs during MA when the crystallite size decreases to approximately 8 nm; the final product of MA is β-MoSi2.

AB - The formation mechanism of stoichiometric MoSi2 by mechanical alloying (MA) from elemental powders has been investigated. The experimental results demonstrate that molybdenum disilicide can be synthesized by MA through different formation mechanisms, which are governed by the milling energy. MoSi2 is formed by the mechanism of self-propagating high-temperature synthesis (SHS) at high rotational speeds and most likely by the mechanism of a mechanical collision reaction (MCR) at lower rotational speeds. Nanocrystalline phase transformation of α → β occurs during MA when the crystallite size decreases to approximately 8 nm; the final product of MA is β-MoSi2.

UR - https://www.scopus.com/pages/publications/3142761978

U2 - 10.1088/0957-4484/15/7/025

DO - 10.1088/0957-4484/15/7/025

M3 - 文章

AN - SCOPUS:3142761978

SN - 0957-4484

VL - 15

SP - 851

EP - 855

JO - Nanotechnology

JF - Nanotechnology

IS - 7

ER -

Formation mechanism and nanocrystalline phase transformation of molybdenum disilicide by mechanical alloying

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