Method and apparatus for removing oxides from metal substrate
A technology for metal substrates and oxides, which is used in the field of removing oxides and devices from metal substrates, and can solve problems such as unsatisfactory methods and devices for removing oxides
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
example 1
[0038] Approximately 9.37 mg of potassium fluoroborate was placed in a platinum crucible and placed in a thermogravimetric furnace. A continuous argon flow of approximately 200 ml / min was provided after three evacuation cycles to create an argon inert atmosphere within the TGA furnace. The temperature in the furnace rises from room temperature to about 950°C.
[0039] figure 2 Shown is the change curve of the weight of potassium fluoroborate as the temperature rises. It can be seen that the weight of potassium fluoroborate decreases significantly in the temperature range from 500°C to 773°C. Before about 500°C and after about 773°C, potassium fluoroborate loses weight very slowly. This indicates that potassium fluoroborate decomposes in the temperature range of 500°C to 773°C. The weight loss measured at about 773°C was about 53.9%, which is consistent with the equation KBF 4 →KF+BF 3 The calculated theoretical value, about 54.9%, corresponds to . This indicates that b...
example 2
[0046] An oxidized GTD-111, GTD-444, or René-108 nickel-base superalloy substrate having an oxide layer approximately 50 microns thick on the surface was placed in a crucible in a tube furnace. Three grams of potassium fluoroborate was kept separate from the substrate in another crucible in the tube furnace. The tube furnace is an argon atmosphere.
[0047] The tube furnace was heated to 950°C and held for 8 hours to heat the substrate. Then the substrate was taken out and cleaned with 10% hydrochloric acid for 15 minutes in an ultrasonic wave.
[0048] It was observed that the oxide layers on the GTD-111 substrate, GTD-444 substrate, and René-108 substrate were all removed, and no basic metal loss or intergranular corrosion occurred.
example 3
[0050] Three René-108 substrates with dimensions of 1cm x 1cm x 5mm were electrodischarge machined to form via holes 1 cm long and 500 microns in diameter in one substrate and one in each of the other two substrates. Pores with a diameter of 500 µm diameter closed at one end. A 1cm x 1cm x 5mm GTD-444 Ni-based superalloy substrate was EDMed with a 500 micron diameter closed-ended hole. Oxidize the aforementioned substrates, and each pore wall has oxides. Place each oxidized substrate in a tube furnace. A flow of boron trifluoride and argon are fed together into the tube furnace.
[0051] Each of the substrates was heated in the tube furnace at approximately 950°C for 8 hours. After heating, the substrate was taken out of the tube furnace and cleaned with 10% hydrochloric acid in ultrasonic for 15 minutes.
[0052] image 3 Shown are optical micrographs of vias in a René-108 substrate before heating and after cleaning, showing complete removal of the oxide in the vias befo...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More - R&D
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com