The performance of zirconia ceramics itself is already very good. If it is combined with high-quality stainless steel materials, wouldn’t the superiority of this composite part be more obvious? But we must first clarify whether stainless steel can be compatible with zirconia ceramics. Combine, and then proceed step by step. Zirconia ceramics are favored by users due to its high toughness, high bending strength, high wear resistance, excellent heat insulation performance, and thermal expansion coefficient. Now it has many unique features, that is, it is combined with stainless steel and sintered to make a composite of stainless steel and zirconia ceramics.
In actual production, the required materials must be prepared first. In addition to stainless steel parts and zirconia ceramic parts, molybdenum foil and nickel foil are also needed as auxiliary materials. Next, a nickel metal layer is deposited on the surface of the zirconia ceramic part. The process is very simple, as long as the zirconia ceramic, molybdenum foil, nickel foil and stainless steel parts are put together in a connecting mold.
In this way, the molybdenum foil and the nickel foil are sandwiched between the zirconia ceramic piece and the stainless steel piece, and the molybdenum foil is adjacent to the nickel metal layer on the zirconia ceramic piece, and the nickel foil is adjacent to the stainless steel piece. Subsequently, the connecting mold is placed in a hot-pressing sintering furnace, and the zirconia ceramic pieces, molybdenum foil, nickel foil and stainless steel pieces are solid-phase diffusion-connected under a protective atmosphere, thereby obtaining a stainless steel and zirconia ceramic composite piece.
After the workpiece is cooled, it can be taken out of the hot-pressing sintering furnace to obtain the previously mentioned stainless steel and zirconia ceramic composite. Since the melting point of zirconia is higher than that of stainless steel, stainless steel will generally melt before zirconia. As long as you follow the above method, the two can be combined well.
Attention should be paid to the details of the process, operation problems, and vacuum furnace problems. A good product must have a full set of process specifications to determine the standardization of product quality, zero failure, processability, and modularity. Only in this way can customers feel assured of buying and using.