Abstract: Provided is a multilayer hard film capable of elongating a lifetime of a member. A multilayer hard film (1) is formed by alternately stacking a layer A (11) made of Ti1-xSix(BpCqNr) [where 0.05?x?0.4, p?0, q?0, r>0, p+q+r=1], and a layer B (12) made of at least one selected from the group of Ti1-a-g-bBaCgNb [where 0.05?a?0.5, 0.25?b?0.6, 0?g?0.5], Si1-c-dCcNd [where 0.2?c?0.5, 0.25?d?0.5], B1-e-fCeNf [where 0.03?e?0.25, 0.3?f?0.55], TiB2, SiC and B4C, one another over the surface of the substrate (2).

Abstract: Provided is a multilayer hard film capable of elongating a lifetime of a member. A multilayer hard film (1) is formed by alternately stacking a layer A (11) made of Ti1-xSix(BpCqNr) [where 0.05?x?0.4, p?0, q?0, r>0, p+q+r=1], and a layer B (12) made of at least one selected from the group of Ti1-a-g-bBaCgNb [where 0.05?a?0.5, 0.25?b?0.6, 0?g?0.5], Si1-c-dCcNd [where 0.2?c?0.5, 0.25?d?0.5], B1-e-fCeNf [where 0.03?e?0.25, 0.3?f?0.55], TiB2, SiC and B4C, one another over the surface of the substrate (2).

Abstract: A coated metal substrate has at least one layer of titanium based hard material alloyed with at least one alloying element selected from the list of chromium, vanadium and silicon. The total quantity of alloying elements is between 1% and 50% of the metal content, the layer having a general formula of: (Ti100-a-b-cCraVbSic)CxNyOz.

Abstract: Disclosed is a crystalline hard coating layer having no cracks, which exhibits both high hardness and excellent wear resistance at the same time. A method for forming the hard coating layer is also disclosed. A crystalline hard coating layer (3) coating a substrate (2) is formed by a PVD method, and contains Si and C as essential components, while containing an element M (which is one or more elements selected from among group 3A elements, group 4A elements, group 5A elements, group 6A elements, B, Al and Ru) and N as optional components. The crystalline hard coating layer (3) has the following composition: SixC1-x-y-zNyMz (where 0.4?x?0.6, 0?y?0.1, and 0?z?0.2).

Abstract: A coating for cutting tools or wear parts has at least one crystalline SixC1-x-y-zNyMz layer formed by means of a PVD method and at least one hard carbon layer, which is diamond or DLC. Si and C are essential components of the SixC1-x-y-zNyMz layer and M is one or more elements selected from among Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Y, B, Al and Ru (wherein 0.4?x?0.6, 0?y?0.1, and 0?z?0.2). The SixC1-x-y-zNyMz layer has a half-value width of an SiC peak observed at 34° to 36° of diffraction angle when X-ray diffraction (XRD) is carried by using a CuK? ray is 3° or less. A method for forming the coating layer using PVD is carried out under certain temperature and substrate bias conditions.

Abstract: A tool or wear part has a coating formed over a substrate. The coating includes at least one sequence of a ductile nano-layer located between two hard layers, though the coating may have several such sequences created by alternating ductile nano-layers with hard layers, with adjacent sequences sharing a hard layer. The various hard layers may differ in composition from one another, as can the ductile nano-layers. An optional adhesion layer may be provided between the substrate and the sequence, and an optional top layer may be provided over the outermost hard layer. The various layers may be deposited by physical vapor deposition in a single chamber.

Abstract: Disclosed is a crystalline hard coating layer having no cracks, which exhibits both high hardness and excellent wear resistance at the same time. A method for forming the hard coating layer is also disclosed. A crystalline hard coating layer (3) coating a substrate (2) is formed by a PVD method, and contains Si and C as essential components, while containing an element M (which is one or more elements selected from among group 3A elements, group 4A elements, group 5A elements, group 6A elements, B, Al and Ru) and N as optional components. The crystalline hard coating layer (3) has the following composition: SixC1-x-y-zNyMz (where 0.4?x?0.6, 0?y?0.1, and 0?z?0.2).

Abstract: A coated cutting tool is at least partially coated with a diamond-like carbon (DLC) multilayer of alternating DLC layers and metal nanolayers sandwiched between the DLC layers. The nanolayer comprises a metal or a metal alloy comprising two or more elements selected from of groups IVB, VB, VIB of the periodic table, Al, and Si. Each DLC layer has a thickness of at least 0.2 microns thick and the coating has a thickness of from about 0.5 microns to about 30 microns.

Abstract: A coated metal substrate has at least one layer of titanium based hard material alloyed with at least one alloying element selected from the list of chromium, vanadium and silicon. The total quantity of alloying elements is between 1% and 50% of the metal content, the layer having a general formula of: (Ti100-a-b-cCraVbSic)CxNyOz.

Abstract: A method of forming on an object a surface coating having a high mechanical strength and chemical and physical stability above 700° C. is disclosed. The method comprises (a) electrophoretically depositing at least one surface coating material on a surface of the object for obtaining a green coating on the surface; and (b) infiltrating into and depositing onto the green coating at least one additional surface coating material by a gas-phase infiltration/deposition method, thereby forming a high performance surface coating, wherein, the at least one surface coating material and the at least one additional surface coating material are chemically and physically stable above 700° C.

Abstract: A method of depositing diamond particles on a surface of a substrate is provided. The method is effected by (a) charging the diamond particles by a positive charge to obtain positively charged diamond particles; and (b) electrophoretically depositing the positively charged diamond particles on the surface of the substrate, for obtaining a green diamond particles coat on the surface of the substrate.