Method for preparing spinel oxide protective coating of stainless steel connector of solid oxide fuel battery
A spinel oxide, solid oxide technology, applied in metal material coating process, coating, ion implantation plating and other directions, can solve the problem of poor bonding force, unable to prepare spinel oxide film, protective coating The problem of many pores in the film is to achieve the effect of good bonding force, preventing Cr volatilization and good Cr blocking performance.
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specific Embodiment approach 1
[0017] Specific Embodiment 1: In this embodiment, a method for preparing a spinel oxide protective coating of a solid oxide fuel cell stainless steel connector is carried out according to the following steps:
[0018] 1. Ultrasonic cleaning: Put the ferrite-based stainless steel into acetone and ultrasonically clean it twice under the condition of ultrasonic frequency of 40kHz. The time of each ultrasonic cleaning is 8min to 15min to obtain the ferrite-based stainless steel after ultrasonic treatment;
[0019] 2. Pre-sputtering treatment: put the ultrasonically treated ferrite-based stainless steel obtained in step 1 on the sample stage in the vacuum chamber, and evacuate to a vacuum degree of 1.0×10 -4 Pa~1.0×10 -3 Pa, under the conditions of a voltage of 100V-200V and an air pressure of 10Pa, perform pre-sputter cleaning for 10min-30min to obtain ferrite-based stainless steel after pre-sputtering treatment;
[0020] 3. Alloy thin film preparation: fix the alloy target on th...
specific Embodiment approach 2
[0026] Embodiment 2: This embodiment differs from Embodiment 1 in that the ferrite-based stainless steel in step 1 is SUS430 stainless steel, SUS441 stainless steel, ZMG232L stainless steel, ZMG232J3 stainless steel, ZMG232G10 stainless steel or APU22 stainless steel. Others are the same as the first embodiment.
specific Embodiment approach 3
[0027] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: In Step 2, pre-sputter cleaning is performed for 20 minutes under the conditions of a voltage of 100V-200V and an air pressure of 10Pa. Others are the same as those in Embodiment 1 or 2.
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