[How2] Alloy Platinum

Hi all everywhere, I was told how to alloy platinum but I cant
remember all the info, the name of the metal that the crucible
is? I heard that often the crucible is the alloy and melts with
the platinum in the oven??? What is the right way to get
adequate results?? I wont be dealing in large quantities at
first but hope to be in the future, besides one never knows.
What are the major differernces between the alloys as far as
tensile strength and memory?

Much appreciated

Eric Putzer