Patent ID: 7985059

Claim:
An assembly for HPHT processing, comprising: a can with an opening; a powder mixture disposed within the opening; a substrate disposed within the opening adjacent the powder mixture; a formable sealant barrier disposed within the opening and opposite the powder mixture from the substrate; a meltable sealant disposed within the opening and opposite the substrate from the formable sealant barrier; a cap covering the opening; wherein the formable sealant barrier comprises aluminum oxide, boron nitride or a combination thereof; a first layer of formable sealant barrier is disposed adjacent to the substrate; a first niobium disc is disposed intermediate the first layer of formable sealant barrier and a second layer of formable sealant barrier; an under lap component is disposed adjacent the second layer of formable sealant barrier and opposite the first niobium disc; a metal disc is disposed opposite the second layer of formable sealant barrier from the under lap component; the meltable sealant layer is disposed opposite the second layer of formable sealant barrier from the under lap component; and a cap is placed on the assembly.