The Comparative Analysis of Micor-topography for Kanthal and Domestic MoSi2 Heating Element
[1]Huang Wenjiang,Zhou Ying,Li Sima,et al.The Comparative Analysis of Micor-topography for Kanthal and Domestic MoSi2 Heating Element[J].Journal of Zhengzhou University (Engineering Science),2017,38(06):88-91.[doi:10.13705/j.issn.1671-6833.2017.06.013]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
38
Number of periods:
2017 06
Page number:
88-91
Column:
Public date:
2017-11-20
- Title:
- The Comparative Analysis of Micor-topography for Kanthal and Domestic MoSi2 Heating Element
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2017.06.013
- Abstract:
- The phase composition, microstructure and micro-area elements analysis of Kanthal and domestic MoSi2 heating element were studied by X-ray diffraction analysis（XRD），scanning electron microscope（SEM）and energy dispersive spectrometer（EDS）. The impacr of other substancesexcept for the MoSi2 phase on the performance of typical MoSi2 heating elements was investigated. The results showed that:(1)Elemental Mo was detrimental to improving the service temperature of the MoSi2 heating element. MoO3 gas was formed by the reaction of residual Mo and oxygen at high temperture, resulting in the emergence of bubble on the surface and damage to the glass film. (2)It was necessary to increase the amount of bentonite during the production process of domestic heating element, while the amount of K, Na and other active alkali metal oxide in the bentonite was strictly controlled.(3)The MoSi2 composite powders were synthesized via alloying method of adding W in replace of traditional MoSi2 powders, which could improve the service life and operating temperature of the heating element.
- References:
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