Research on tape-casting technology of metal thin film
The tape casting method is applied to the production of metal films.Due to the large specific gravity of the metal powder and the complicated preparation process of the casting process,the metal film is easily deformed and cracked.In this paper,the influence of the content of various additives in the metal casting slurry on the form-ing process and sintering properties of the metal film was studied.The result shows that the binder content and vis-cosity have a decisive influence on the performance of the metal film.Adding 10％pore-forming agent can effec-tively control the phenomenon of particle agglomeration,membrane pore size distribution is concentrated,the gas transmission rate increases.The influence of solid content on the uniformity of the slab is verified.The solid con-tent is too low can cause surface cracking,uneven thickness,many defects and poor strength after sintering.And the solid content is too high,will lead to the film layer gas permeability decline,at the same time,the flexibility of the film layer will also be reduced.Pore forming material can significantly improve the surface agglomeration phe-nomenon of membrane layer and improve the binding force between particles.
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