摘要:
A composite material has a base substrate body with first and second coatings. Each coating is formed by a multiphase layer of titanium oxide and at least two oxides from the group of aluminum, zirconium, and hafnium oxide and a second single-phase layer on the first layer consisting of only one oxide of aluminum, zirconium, and hafnium.
摘要:
A coated article such as a coated cutting tool or coated wear part, which includes a substrate and a coating scheme on the substrate. The coating scheme has a titanium-containing coating layer, and an aluminum oxynitride coating layer on the titanium-containing coating layer. The aluminum oxynitride includes a mixture of phases having a hexagonal aluminum nitride type structure (space group: P63mc), a cubic aluminum nitride type structure (space group: Fm-3m), and optionally amorphous structure. The aluminum oxynitride coating layer has a composition of aluminum in an amount between about 20 atomic percent and about 50 atomic percent, nitrogen in an amount between about 40 atomic percent and about 70 atomic percent, and oxygen in an amount between about 1 atomic percent and about 20 atomic percent. The method of making the coated article includes a step of providing a substrate and depositing an aluminum oxynitride coating layer from a gaseous mixture that includes nitrogen, aluminum tri-chloride, ammonia, carbon dioxide, hydrogen chloride, optionally carbon monoxide, optionally argon, and hydrogen.
摘要:
The invention relates to a method of coating a cemented carbide or cermet substrate body by means of PVD, in which the fully sintered substrate body is subjected without further intermediate treatment before PVD coating to a blasting treatment using a particulate blasting agent until the zone close to the surface of the substrate body has a residual stress which is at least essentially of the same magnitude as the residual stress present in the single or first applied PVD layer. The invention further relates to such a coated cemented carbide or cermet body, in particular in the form of a cutting tool.
摘要:
The invention relates to a tool, especially a cutting tool, comprising a substrate member onto which at least one layer is deposited by means of CVD, and a method for the chemical vapor deposition of a two-phase layer on a sintered part. According to the invention, the single deposited layer or at least one of the layers is provided with a TiCN phase, TiOCN phase, TiOC phase, or TiC phase and an additional phase consisting of ZrO2 and/or HfO2. CH3CN, C5H5N, or C6H6 is used in the gas atmosphere for producing such a layer in addition to TiCl4, HfCl4, and/or ZrCl4 and CO2, the remainder being composed of H2 and/or Ar.
摘要:
The invention relates to a tool, especially a cutting tool, comprising a substrate member onto which at least one layer is deposited by means of CVD, and a method for the chemical vapor deposition of a two-phase layer on a sintered part. According to the invention, the single deposited layer or at least one of the layers is provided with a TiCN phase. TiOCN phase, TiOC phase, or TiC phase and an additional phase consisting of ZrO2 and/or HfO2. CH3CN, C5H5N, or C6H6 is used in the gas atmosphere for producing such a layer in addition to TiCl4, HfCl4, and/or ZrCl4 and CO2. the remainder being composed of H2 and/or Ar.
摘要翻译:本发明涉及一种工具,特别是一种切削工具,其包括通过CVD沉积至少一层的基板部件,以及用于在烧结部件上化学气相沉积两相层的方法。 根据本发明,单个沉积层或至少一个层具有TiCN相。 TiOCN相,TiOC相或TiC相以及由ZrO 2和/或HfO 2 2组成的附加相。 CH 3 CN,C 5 H 5 N或C 6 H 6 N,或C 6 H 6, 除了TiCl 4,HfCl 4和/或ZrCl 4和CO之外,还用于生产这种层的气体气氛中 > 2 SUB>。 其余部分由H 2和/或Ar组成。
摘要:
The invention pertains to a processing insert comprised of a body with a hard metal or ceramic substrate and with a multilayer coating and the manufacture of same. In order to have a highly fracture-tough insert with a relatively thick coating, it is suggested that an external layer (protective layer) be applied according to the CVD process, said layer being either a monophase or multiphase layer of Zr-based or Hf-based carbide nitride or carbonitride, and presenting internal compressive stresses. The layer(s) underlying the external layer, also applied according to the CVD process, also present(s), without any exception, internal compressive stresses, while at least one of them, maybe the only one laying under the protective layer is made of TiN, TiC and/or TiCN. The coating is applied according to a continuous CVD process at temperatures of 900° C. to 1100° C. and involves a specific modification of the gas compounds.
摘要:
A composite body for use, for example as a cutting tool, having a metal-carbonitride layer of titanium, zirconium or hafnium carbonitride with at least two of these metals in the lattice structure as deposited by a CVD or plasma-activated-CVD process.
摘要:
A process of forming a tool in which directly on the surface of the base body of the tool by base plasma activated chemical deposition a first PCVD layer of titanium carbide, titanium carbonitride, titanium nitride, zirconium carbonitride, and aluminum oxide is formed. Directly on this first layer by a nonplasma-activated CVD a second layer of titanium carbide, titanium carbonitride, titanium nitride, zirconium carbonitride, and aluminum oxide is formed. The steps are repeated to build up a coating so that it consists of a multiplicity of layers in a PCVD-CVD-PCVD-CVD structure.