What can I use to prevent 304 Stainless stick and copper powder sinter to stick together at 1000 C?
I used graphene spray but it didn't work.What else can be done?
Try to oxidize your AISI 304 rod in air at 850-900°C first and then use it. Oxidized steel surface should not stick to copper powder as much.
Mutlu
Why are you using SS304 mandrel? It would lose its strength at 1000C and also be expensive. Best to use Low Carbon Steel, metalized using WC-Co-Cr alloy wire. The chromium would oxidize at this temperature and the copper powder would not stick.
Also, why use 1000 C, copper powder would oxidize unless you are using a reducing atmosphere. I like to know whether this is your thesis project or just making copper pipe industrially.
Dr. K
I want to produce heat pipe industrially.I sinter under protective atmosphere at 1000C.I do not have enough information about which type of stainless to use.It should be both temperature resistant and non-adhesive to copper sinter.
Mutlu
Go to the university library and do the literature survey and look up "Heat Transfer" journals in mechanical engineering and applied physics.
the way you are doing is all wrong. I have published more than 100 papers on powder metallurgy and I am presently overseas.
Dr. K
If you use such a style in your articles 100 papers mean nothing.
I am a mechanical engineer and I use this platform for information exchange.You cannot decide where and how to access information.
Mutlu
Would it possible for you tell me what you have done in this project? That is from the start to this date and what equipment you have for this project and how you are handling. If you give me the information then I possible give you some hints where you are wrong and how to correct it. Probably you should have known that sintered heat pipe has a high thermal efficiency for heat transfer electronics cooling.
Dr.K
@ Mutlu,
Any luck finding a method to resolve your issue? I am also looking into fabricating heat pipes and have the same issue. Any thoughts would be much appreciated.
Thanks
Delika
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