Method for hot isostatic pressing a substrate

A method for hot isostatic pressing a substrate including the steps of:

• providing a metal container in the form of a barrel, a feeding pipe connected to the metal container, a cover closing the feeding pipe and with a plurality of vents defined therein, and a check valve arranged between the feeding pipe and the cover;
• filling powder in the metal container;
• providing an oven containing, heating, and hot isostatic pressing the metal container filled with the powder so as to heat and deform the metal container evenly to press the powder evenly into a nugget and such that excess gasses from the metal container are vented from the container and external gases are blocked from entering the container during the hot isostatic pressing;
• removing the metal container from the oven;
• breaking the metal container;
• removing the nugget from the metal container;
• and
• slicing the nugget into a plurality of substrates.