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  • 1 Zhongshan University Department of Physics Guangzhou 510275 P. R. China Guangzhou 510275 P. R. China
  • 2 Zhongshan University Analysis and Research Center Guangzhou 510275 P. R. China Guangzhou 510275 P. R. China
  • 3 Zhongshan University Institute of Information and Science Guangzhou 510275 P. R. China Guangzhou 510275 P. R. China
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Abstract  

Adding a magnetic field gradient to the conventional TG system constructs the magnetic thermogravimetry analysis (TG(M) i.e. Faraday methods) and the magnetic derivative thermogravimetry (DTG(M)) techniques. We used the techniques to study the nanocrystalline processes of the FeCuNbSiB and FeCuNbCoSiB amorphous alloys. Some problems of their applications such as the characteristic temperature Tmin and TC are also discussed in detail.