2results about How to "Reduced interfacial bond strength" patented technology

This application belongs to the field of metal composite plate preparation, specifically relating to a 304 stainless steel-high manganese steel composite plate and its preparation method. The preparation method includes the following steps: S1, obtaining 304 stainless steel slabs and high manganese steel slabs, stacking and welding the 304 stainless steel slabs and high manganese steel slabs to obtain a first composite slab; S2, heating the first composite slab to obtain a second composite slab; S3, rolling the second composite slab to obtain the 304 stainless steel-high manganese steel composite plate. This application solves the problem of "excessive thinning of the soft phase" caused by the hardness difference in "soft / hard" composite plates during rolling by introducing a thickness ratio compensation formula in the billet assembly stage. This significantly improves the thickness ratio accuracy of the final product. By dynamically adjusting the speed ratio, the rolling effect generated by "variable speed rolling" effectively offsets the internal bending moment caused by uncoordinated deformation, significantly reducing the warping and buckling phenomenon of the composite plate.

The invention discloses a barrier layer, a preparation method thereof and a solid oxide battery, and belongs to the technical field of solid oxide batteries. The preparation method of the barrier layer comprises the following steps: at least uniformly mixing cerium-based oxide powder, a sintering aid and a solvent to obtain slurry; and spin-coating the slurry on a substrate, and sintering to obtain the barrier layer. The barrier layer provided by the invention is prepared by the preparation method. The solid oxide battery at least comprises the barrier layer. The barrier layer prepared by the invention has the advantages of high density, high uniformity, high interface bonding strength and the like, the preparation process and the raw material system are relatively simple, and the barrier layer is suitable for a large-area single battery.