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Citation: Zhang Ju, Zheng Xiao-Meng, Wu Nian-Ci, Ding Yun-Jie. Study on the Chemical Preparation of Ultrafine Amorphous Ni-Co-B Alloy and their Thermal Stability[J]. Acta Physico-Chimica Sinica, ;1995, 11(02): 113-117. doi: 10.3866/PKU.WHXB19950204 shu

Study on the Chemical Preparation of Ultrafine Amorphous Ni-Co-B Alloy and their Thermal Stability

1.
Department of Chemistry,Hangzhou University,Hangzhou 310028

Received Date: 7 December 1993
Available Online: 15 February 1995

Ultrafine amorphous particles of Ni-B、Co-B and Ni-Co-B with different contents have been prepared by chemical reduction method. Nickel and cobalt contents in the particles can be easily varied by changing the ionic concentration of the aqueous solution. The XRD、TEM and electron diffractoin results show that the alloy particles are amorphous spheres, whose diameters are about 20 nm. The thermal stability of ultrafine amorphous alloy prepared at different conditions has been investigated by DSC method. It is found that there are differences of thermal stability for amorphous alloy of the same elements with different contents of for amorphous alloy of the same elements prepared at different conditions.
- Amorphous alloy(Ni-Co-B),
- Ultrafine particles,
- Thermal stability
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