67 results about "Growth orientation" patented technology

Disclosed is a vacuum vapor deposition device with excellent series production properties, which simultaneously forms the collector lead formation area and the electrode active material area of a lithium secondary battery. With shutters (12a, 12b) in the closed state, a substrate (4) wound onto a first roll (3) is paid out and transported towards a second roll (8), and stopped upon arriving at first and second vapor deposition zones (60a, 60b). Here, the shutter (12a) is opened and a vapor deposition material in the crucible of a vaporization source (9) is vaporized and delivered to the surface of the substrate (4) positioned at the first vapor deposition zone (60a). Thus, a first vapor deposition film layer is formed on the surface of the substrate (4). After vapor deposition has been performed for a specified time onto the substrate (4), the shutter (12a) is closed. Next, the substrate (4) is transported again and the portion on which vapor deposition was formed in the first vapor deposition zone (60a) is stopped at the position of the second vapor deposition zone (60b). The shutters (12a, 12b) are opened and vapor deposition is performed again, forming a first layer in the first vapor deposition zone (60a) and forming a second vapor deposition film layer with a different growth orientation than that of the first layer on top of the first layer in the second vapor deposition zone (60b).

Wear resistance of the prior-art Ti(C,N) layers can be considerably enhanced by optimising the grain size and microstructure. This invention describes a method to obtain controlled, fine, equiaxed grain morphology in Ti(C,N) layers produced using moderate temperature CVD (MTCVD). The control of the grain size and shape can be obtained by doping using CO, CO2, ZrCl4 and AlCl3 or combinations of these. Doping has to be controlled carefully in order to avoid nanograined structures and oxidisation. This kind of coatings shows new enhanced wear properties. The fine grain size together with equiaxed grain morphology enhances the toughness of the coating with at least maintained wear resistance, which can be seen especially in sticky steels like stainless steels. The optimum grain size is from 50 to about 300 nm, preferably from about 50 to about 150. The coatings according to this invention are characterised by the lack of any strong preferred growth orientation, the length-to-width ratio (L / W) around 1 and only with a slight to moderate XRD line broadening.