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Oxygen-resistance under high temperature: in oxidizing atmosphere, on the surface of MoSi2 element owing to the high-temperature combustion a layer of compact quartz (SiO2) protective film is formed to prevent MoSi2 from continuously oxidizing. When the element temperature is higher than 1700?, the SiO2 protective film, Whose fusing point is 1710?, is fused, and the SiO2 is fused into molten drops owing to the action of its surface extension, so that loses its protective ability. In the oxidizing atmosphere, when the element is continuously used, again the protective film forms.
It should be pointed out that MoSi2 heat-generating element cannot be used for rather long time in 400-700?, or it will be powdered owing to the strong oxidizing action in low temperature.
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| [ Contact Info ] |
 Company |
Songshan Enterprise Group |
| Address |
Sanlizhuang High & New Tech. Zone, Dengfeng Zhengzhou Henan 452483 China |
| Phone |
86 - 371 - 62768046 |
| Fax |
86 - 371 - 62768249 |
| Homepage |
www.songshangroup.com |
| Contact |
Yang Xuehao / Imp & Exp Manager
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