High temperature anti-oxidation coating molybdenum material and preparation method thereof

A high-temperature anti-oxidation and anti-oxidation coating technology, applied in the direction of coating, metal material coating process, solid-state diffusion coating, etc., can solve the problem of general high-temperature oxidation resistance, poor thermal matching between coating and substrate, and complex preparation process and other problems, to achieve the effects of easy control of structure and phase state, excellent high temperature oxidation resistance, and simple preparation process
CN102534469AActive Publication Date: 2012-07-04XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD +1
3 Cites 29 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
Publication Date
2012-07-04

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a high temperature anti-oxidation coating molybdenum material and a preparation method thereof. The surface of a product is provided with a Mo-N-Si-B anti-oxidation coating which is synthesized by adopting a three-step in situ synthesis method. Compared with the prior art, the product has good high temperature anti-oxidation performance and is good in material compactness, and hot matching performance between the coating and a base body is good. The preparation method does not need expensive devices such as plasma spraying, chemical vapor deposition or infiltration, avoids a complex process of a slurry method and is simple in preparation process, low in production cost and easy in controlling of coating structures and phase states.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of coating preparation, and in particular relates to a molybdenum material for a high-temperature anti-oxidation coating and a preparation method thereof. Background technique

[0002] Metal molybdenum has the advantages of strong tensile strength and creep strength, good heat resistance, low thermal expansion coefficient, high thermal conductivity and electrical conductivity at high temperature, but its high temperature oxidation resistance is poor, and the temperature in the air is high. Oxidation occurs at 630°C, and as the temperature increases, the degree of oxidation intensifies, resulting in embrittlement of molybdenum and structural failure of molybdenum when used at high temperatures, which greatly limits the use of molybdenum as a high-temperature material. Therefore, the high-temperature oxidation resistance of molybdenum has always been a difficult problem to be solved by material workers, molybdenum produ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More