摘要:
The invention concerns a composite body consisting of a hard metal, cermet or ceramic substrate body and at least one layer of a mechanically resistant material, a ceramic substance, a diamond-like layer, amorphous carbon and/or hexagonal boron nitride. The invention also concerns a method of producing this composite body, wherein, when the green compact has been dewaxed, with its pores still open and whilst it continues to be heated as from a temperature of between 600° C. and 1100° C., it is acted upon by sublimable solids and/or reaction gases which are necessary for coating purposes. The temperature of the green compact is then further increased and the latter is fully compressed by sintering, before one or more layers of the above-mentioned type is/are applied.
摘要:
Disclosed are a composite body and the production and the use thereof. It consists of a substrate body with a single- or multilayer coating, containing either Ti, Zr, Hf, V, Nb carbides, nitrides, carbonitrides and/or Ta and/or Al2O3 or ZrO2. In order to improve the characteristics of wear from chip removal or another form of abrasion, the invention suggests that a layer of Zr, Hf, V, Nb, Ta or Cr carbonitride be precipitated either directly upon a layer of Al2O3— or ZrO2— or upon a thin intermediate layer of ZrC or ZrN up to 0,5 &mgr;m, or upon a TiN layer up to 0.1 &mgr;m, or indirectly upon a layer of Al2O3— or ZrO2—.
摘要翻译:公开了一种复合体及其生产和使用。 它包括具有单层或多层涂层的基体,其中包含Ti,Zr,Hf,V,Nb碳化物,氮化物,碳氮化物和/或Ta和/或Al2O3或ZrO2。 为了改善由芯片去除或其它形式的磨损引起的磨损特性,本发明提出,Zr,Hf,V,Nb,Ta或Cr碳氮化物层可以直接沉积在一层Al2O3或ZrO2-或 在ZrC或ZrN至0.5μm的中间层上,或在TiN层达到0.1μm以上,或间接地在Al 2 O 3或ZrO 2层上。
摘要:
The invention relates to a method for producing a coated substrate body by chemical vapor deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are ≧250 m/min.
摘要:
The invention relates to a composite material consisting of a base body with a multilayered coating, containing at least one mulitphase layer of aluminum oxide, zirconium and/or hafnium and titanium and a single-phase layer made of AI2O3, ZrO2 and/or HfO2.
摘要翻译:本发明涉及一种复合材料,其由具有多层涂层的基体和含有氧化铝,锆和/或铪和钛的至少一个多相层以及由AI 2制成的单相层组成。 > O 3,ZrO 2和/或HfO 2 2。
摘要:
A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an alumina layer and a Zr- or Hf-carbonitride outer layer deposited on the alumina layer. The Zr- or Hf-carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition.
摘要:
The invention relates to a body which is coated with hard material and has a plurality of layers applied by means of CVD, wherein the outer layer comprises Ti1-xAlxN, Ti1-xAlxC and/or Ti1-xAlxCN where 0.65≦x≦0.9, preferably 0.7≦x≦0.9, and this outer layer has compressive stresses in the range from 100 to 1100 MPa, preferably from 400 to 800 MPa, and a TiCN or Al2O3 layer is arranged under this outer layer.
摘要翻译:本发明涉及一种用硬质材料涂覆并具有通过CVD施加的多层的主体,其中外层包括Ti1-xAlxN,Ti1-xAlxC和/或Ti1-xAlxCN,其中0.65和n1E; x和nlE; 0.9, 优选为0.7< NlE; x≦̸ 0.9,该外层的压缩应力为100〜1100MPa,优选为400〜800MPa,TiCN或Al 2 O 3层配置在该外层下方。
摘要:
The invention relates to a body which is coated with hard material and has a plurality of layers applied by means of CVD, in which an Al2O3 layer is arranged as outer layer on a Ti1-xAlxN layer and/or Ti1-xAlxC layer and/or Ti1-xAlxCN layer.
摘要翻译:本发明涉及一种涂有硬质材料并具有通过CVD施加的多个层的主体,其中在Ti1-xAlxN层和/或Ti1-xAlxC层和/或Ti1-xAlxC层上排列有Al 2 O 3层作为外层 Ti1-xAlxCN层。
摘要:
The invention relates to a method for producing a coated substrate body by chemical vapour deposition at least on one layer made of a carbonitride of a metal of IVa-VIa-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are ≧250 m/min.
摘要:
A composite in which a substrate body is coated with a single layer or multiple layers and at least one layer has two or three phases comprised of cubic ZrCN and monoclinic or tetragonal ZrO2. The composite can be in the form of a lathe or milling cutter cutting insert.
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.