| 摘要 |
A method of lengthening the useful life of heating elements that are formed essentially from molybdenum silicide and molybdenum tungsten silicide and different alloys of those basic materials, at times when the elements are operated at a relatively low temperature, such as a temperature in the range of 400-800° C. The gaseous atmosphere surrounding the elements as they operate has a water content that is less than about one percent by volume. |
