Stainless steel and zirconium oxide ceramic compound part and manufacturing method thereof

Abstract

The invention provides a manufacturing method for a stainless steel and zirconium oxide ceramic compound part. The manufacturing method mainly comprises the steps of performing a solid diffusion connection of the stainless steel and zirconium oxide ceramic by applying molybdenum foil and nickel foil in a hot-pressing sintering furnace as a connecting medium layer. The invention further provides the stainless steel and zirconium oxide ceramic compound part manufactured by the manufacturing method. The stainless steel and the zirconium oxide are connected by the manufacturing method and have a higher binding force. The stainless steel and zirconium oxide ceramic compound part comprises a stainless steel part, a zirconium oxide ceramic part and a connecting part for connecting the stainless steel part and the zirconium oxide ceramic part. The connecting part comprises a first transition layer, a molybdenum layer, a second transition layer, a nickel layer and a third transition layer.

Description

technical field [0001] The invention relates to a composite piece of metal and ceramics and a manufacturing method thereof, in particular to a composite piece of stainless steel and zirconia ceramics and a manufacturing method thereof. Background technique [0002] Stainless steel has good corrosion resistance at room temperature, and is widely used in the manufacture of various engineering structures and mechanical parts. However, in relatively harsh environments such as high temperature and corrosiveness, the corrosion resistance, wear resistance, erosion resistance, and high temperature resistance of stainless steel have been difficult to meet the further needs of modern production technology. Zirconia ceramics have the advantages of high hardness, high temperature corrosion resistance, wear resistance, and erosion resistance. Therefore, the connection of stainless steel and zirconia ceramics to form a composite structure is of great significance for the application of s...

AI Technical Summary

Problems solved by technology

It is difficult to form a stepwise change in thermal expansion coefficient with a single metal layer, which has limited effect on reducing thermal stress, and the bonding force is not good

However, the multi-layer metal layers currently used pay more attention to the activity of the middle metal layer and the interaction between them, and fail to fully consider the stepwise transformation of the thermal expansion coefficient, which cannot greatly reduce the thermal stress.

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