I linked some patents below: https://patents.google.com/patent/US20170272058A1/ https://patents.google.com/patent/US20170272058A1/ https://patents.google.com/p

I linked some patents below: https://patents.google.com/patent/US20170272058A1/ https://patents.google.com/patent/US20170272058A1/ https://patents.google.com/patent/US20170124010A1/ https://patents.google.com/patent/US20170124010A1/ But a quick search yields some interesting research: http://www.te.com/documentation/whitepapers/pdf/p313-89.pdf http://www.te.com/documentation/whitepapers/pdf/p313-89.pdf I bet there's much more to find, I'm not a metallurgist.