I am working on a project for college that involves sintering 3d printed powder metal copper parts. Right now I am looking for some type of high temperature hot bed like some type of ceramic plate that can reach 1000c and stay at that temperature for indefinitely. I am having trouble finding anything and the things i do find come from large companies that dont just sell to the general public plus they are super expensive. Any ideas on what to use? Basically I have a vacuum chamber and i want to have the heated plate inside that i can set my part on top of.