Preparation and thermal properties of amorphous Fe–W–B alloy nano-powders
Amorphous Fe–W–B alloy nano-powders were obtained by chemical reduction for the first time. The powders have nearly spherical morphology with a size of 30–100 nm. The effect of the preparation condition on the composition of the powders has been studied systematically. The crystallisation temperatur...
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| Veröffentlicht in: | Journal of materials processing technology 1998-02, Vol.74 (1), p.10-13 |
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| container_title | Journal of materials processing technology |
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| creator | Ge, Yi Ying, Guo Bangwei, Zhang Lingling, Wang Yifang, OuYang Shuzhi, Liao |
| description | Amorphous Fe–W–B alloy nano-powders were obtained by chemical reduction for the first time. The powders have nearly spherical morphology with a size of 30–100 nm. The effect of the preparation condition on the composition of the powders has been studied systematically. The crystallisation temperature and activation energy of crystallisation for the powders were also studied. The thermal properties can be attributed to the strengthening of partial bonds formed by overlapping the s–p hybrid orbitals of boron atoms with the s–p–d orbitals of iron and tungsten atoms. |
| doi_str_mv | 10.1016/S0924-0136(97)00242-2 |
| format | Article |
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The powders have nearly spherical morphology with a size of 30–100 nm. The effect of the preparation condition on the composition of the powders has been studied systematically. The crystallisation temperature and activation energy of crystallisation for the powders were also studied. The thermal properties can be attributed to the strengthening of partial bonds formed by overlapping the s–p hybrid orbitals of boron atoms with the s–p–d orbitals of iron and tungsten atoms.</description><identifier>ISSN: 0924-0136</identifier><identifier>DOI: 10.1016/S0924-0136(97)00242-2</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Amorphous ; Applied sciences ; Exact sciences and technology ; Metal powders ; Metals. Metallurgy ; Nano-powders ; Powder metallurgy. 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The powders have nearly spherical morphology with a size of 30–100 nm. The effect of the preparation condition on the composition of the powders has been studied systematically. The crystallisation temperature and activation energy of crystallisation for the powders were also studied. The thermal properties can be attributed to the strengthening of partial bonds formed by overlapping the s–p hybrid orbitals of boron atoms with the s–p–d orbitals of iron and tungsten atoms.</description><subject>Amorphous</subject><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Metal powders</subject><subject>Metals. Metallurgy</subject><subject>Nano-powders</subject><subject>Powder metallurgy. 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The powders have nearly spherical morphology with a size of 30–100 nm. The effect of the preparation condition on the composition of the powders has been studied systematically. The crystallisation temperature and activation energy of crystallisation for the powders were also studied. The thermal properties can be attributed to the strengthening of partial bonds formed by overlapping the s–p hybrid orbitals of boron atoms with the s–p–d orbitals of iron and tungsten atoms.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/S0924-0136(97)00242-2</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Amorphous Applied sciences Exact sciences and technology Metal powders Metals. Metallurgy Nano-powders Powder metallurgy. Composite materials Production techniques Thermal properties |
| title | Preparation and thermal properties of amorphous Fe–W–B alloy nano-powders |
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