Preparation method of low dysprosium corrosion-resistant sintered NdFeB
A neodymium-iron-boron and corrosion-resistant technology is applied in the field of preparation of magnetic materials, which can solve the problems of easily changing the electrochemical corrosion potential of grain boundary phase and affecting corrosion resistance, and achieve the effects of optimizing corrosion resistance and effective content control.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0019] 1. Prepare a master alloy ingot, the atomic percentage of which is: Nd: 9.0%, Pr: 3.0%, Fe: 81.5%, B: 6.5%, and use the vacuum induction quick-setting casting technology to prepare the master alloy quick-setting casting.
[0020] 2. After the master alloy quick-setting cast sheet is crushed by hydrogen explosion, add 0.5% of gasoline, 3.0% of special antioxidant and 0.1% of lubricant to the powder, mix well, and place in the air flow It is further crushed in the mill to make a powder with an average particle size of 6 μm.
[0021] 3. The powder made by jet milling is placed on the rolling sample stage of the magnetron sputtering equipment used for powder particle coating. Select the alloy target, its atomic percentage composition is: Dy: 80%, Co: 15%, Al: 5%; after the magnetron sputtering system is evacuated, the target material is sputtered on the rolling sample stage in an argon atmosphere On the powder falling with gravity, the average thickness of the sputtered la...
Embodiment 2
[0026] 1. Prepare a master alloy ingot, the atomic percentage of which is: Nd: 13.5%, Fe: 80.2%, B: 6.3%, and use the vacuum induction quick-setting casting technology to prepare the master alloy quick-setting casting.
[0027] 2. After the master alloy quick-setting cast sheet is crushed by hydrogen explosion, add 1.0% of gasoline, 0.5% of special antioxidant and 0.05% of lubricant to the powder, mix well, and place in the air flow It is further crushed in the mill to make a powder with an average particle size of 5 μm.
[0028] 3. The powder made by jet milling is placed on the rolling sample stage of the magnetron sputtering equipment used for powder particle coating. Select the alloy target, its atomic percentage composition is: Dy: 60.0%, Co: 25.0%, Al: 10.0%, Ga: 5.0%; after the magnetron sputtering system is evacuated, the target components are sputtered in an argon atmosphere Sputtered on the powder falling with gravity in the rolling sample stage, the average thickne...
Embodiment 3
[0033] 1. Prepare a master alloy ingot, the atomic percentage of which is: Nd: 12.5%, Fe: 80.8%, B: 6.7%, and use the vacuum induction quick-setting casting technology to prepare the master alloy quick-setting casting.
[0034] 2. After the master alloy quick-setting cast sheet is crushed by hydrogen explosion, add 1.0% of gasoline, 1.5% of special antioxidant and 0.1% of lubricant to the powder, mix well, and place in the air flow It is further crushed in the mill to make a powder with an average particle size of 4 μm.
[0035] 3. The powder made by jet milling is placed on the rolling sample stage of the magnetron sputtering equipment used for powder particle coating. Select the alloy target, its atomic percentage composition is: Dy: 40.0%, Co: 20.0%, Al: 30.0%, Cu: 2.0%, Nb: 3.0%, Ga: 5.0%; after the magnetron sputtering system is vacuumed, In an argon atmosphere, the target material components are sputtered on the powder falling with gravity in the rolling sample stage, a...
PUM
Property | Measurement | Unit |
---|---|---|
thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com