Dongguan Mingrui Ceramic Technology Co.,Ltd

Dongguan Mingrui Ceramic Technology Co.,Ltd

Fabrication steps of stainless steel and zirconia ceramic composites.

2018 04/03

Zirconia ceramics with high toughness, high flexural strength, high wear resistance, excellent thermal insulation performance, thermal expansion coefficient and other advantages are favored by users.
Now it has a number of unique features, which is to combine with stainless steel to make a stainless steel and zirconia ceramic composite.

In actual production, the required materials should be prepared first. Besides stainless steel and zirconia ceramic parts, molybdenum foil and nickel foil are required as auxiliary materials.
Then the nickel metal layer is deposited on the surface of zirconia ceramics. The process is very simple, so long as the zirconia ceramics, molybdenum foil, nickel foil and stainless steel pieces are put into a joint mold.

In this way, molybdenum foil and nickel foil are placed between zirconia ceramic and stainless steel parts, and molybdenum foil is adjacent to the nickel metal layer on zirconia ceramic parts, and nickel foil is adjacent to stainless steel.
Then connect the mold into a hot pressing sintering furnace, the zirconia ceramic under protective atmosphere, molybdenum nickel foil, foil and stainless steel pieces of solid phase diffusion bonding, stainless steel with zirconia ceramic composite is obtained.

When the workpiece is cooled, it can be removed from the hot pressure sintering furnace, and thus the former stainless steel and zirconia ceramic composites are obtained.
Since the melting point of zirconia is higher than the melting point of stainless steel, the general stainless steel will melt before the zirconium oxide. As long as the above method is used, the two can be combined well.