Patents by Inventor Mandy Hoehn
Mandy Hoehn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11459660Abstract: Articles containing metal, hard metal, cermet or ceramic and coated with a hard material, and a method for producing same. The hard material layers can be used as anti-wear layers for cutting tools, as protective layers for turbine blades, or as diffusion barriers in microelectronics. The hard material layers exhibit a high hardness, high oxidation resistance, and excellent wear resistance. The articles are coated with a single- or multi-layer layer system by a thermal CVD method without plasma excitation, where the single- or multi-layer layer system includes at least one nanocomposite layer with a first nanocrystalline phase of cubic titanium oxycarbonitride and a second, amorphous phase of silicon oxycarbonitride or silicon oxycarbide.Type: GrantFiled: February 2, 2018Date of Patent: October 4, 2022Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Ingolf Endler, Mandy Hoehn
-
Publication number: 20200232100Abstract: Articles containing metal, hard metal, cermet or ceramic and coated with a hard material, and a method for producing same. The hard material layers can be used as anti-wear layers for cutting tools, as protective layers for turbine blades, or as diffusion barriers in microelectronics. The hard material layers exhibit a high hardness, high oxidation resistance, and excellent wear resistance. The articles are coated with a single- or multi-layer layer system by a thermal CVD method without plasma excitation, where the single- or multi-layer layer system includes at least one nanocomposite layer with a first nanocrystalline phase of cubic titanium oxycarbonitride and a second, amorphous phase of silicon oxycarbonitride or silicon oxycarbide.Type: ApplicationFiled: February 2, 2018Publication date: July 23, 2020Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Ingolf ENDLER, Mandy HOEHN
-
Patent number: 9062370Abstract: Bodies coated with a SiC layer or with a multilayer coating system that include at least a SiC hard material layer, wherein the SiC layer consists of halogen-containing nanocrystalline 3C—SiC or a mixed layer which consists of halogen-containing nanocrystalline 3C—SiC and amorphous SiC or halogen-containing nanocrystalline 3C—SiC and amorphous carbon.Type: GrantFiled: March 17, 2010Date of Patent: June 23, 2015Assignee: Spawnt Private S.a.r.l.Inventors: Ingolf Endler, Mandy Höhn, Thoralf Gebel, Christian Bauch, Rumen Deltschew, Sven Holl, Gerd Lippold, Javad Mohsseni, Norbert Auner
-
Patent number: 8748016Abstract: The invention relates to coated bodies made of metal, hard metal, cermet or ceramic material, coated with a single- or multi-layer coating system containing at least one hard material composite coating, and to a method for coating such bodies. The aim of the invention is to develop a coating system for such bodies, which is single- or multi-layered and comprises at least one hard material composite coating, which contains cubic TiAlCN and hexagonal AlN as the main phases and is characterized by a composite structure having a smooth, homogeneous surface, high oxidation resistance and high hardness. The aim includes the development of a method for cost-effectively producing such coatings. The hard material composite coating according to the invention contains cubic TiAlCN and hexagonal AlN as main phases, wherein the cubic TiAlCN is microcrystalline fcc-Ti1-xAlxCyNz where x>0.75, y=0 to 0.25 and z=0.75 to 1 having a crystallite size of ?=0.Type: GrantFiled: November 12, 2010Date of Patent: June 10, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Ingolf Endler, Mandy Hoehn
-
Patent number: 8257841Abstract: The invention relates to bodies coated with a hard material, comprising a multi-layer coating system containing at least one Ti1-xAlxN hard material coating and to a multi-stage CVD method for producing the bodies. The aim of the invention is to achieve excellent adhesion of the Ti1-xAlxN hard material coating in bodies coated with a hard material comprising a multi-layer coating system containing at least one Ti1-xAlxN hard material coating and a high degree of wear resistance. According to the invention, the bodies coated with a hard material comprising a multi-layer coating system containing at least one Ti1-xAlxN hard material coating are characterized by the following features: the coating system consists of a) a bonding coating applied to the body, consisting of TiN, Ti(C,N) or TiC; b) a phase gradient coating that is applied to the bonding coating; and c) the single or multi-phase Ti1-xAlxN hard material coating or coatings applied to the phase gradient coating.Type: GrantFiled: October 10, 2008Date of Patent: September 4, 2012Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Ingolf Endler, Mandy Hoehn
-
Publication number: 20120219789Abstract: The invention relates to coated bodies made of metal, hard metal, cermet or ceramic material, coated with a single- or multi-layer coating system containing at least one hard material composite coating, and to a method for coating such bodies. The aim of the invention is to develop a coating system for such bodies, which is single- or multi-layered and comprises at least one hard material composite coating, which contains cubic TiAlCN and hexagonal AlN as the main phases and is characterized by a composite structure having a smooth, homogeneous surface, high oxidation resistance and high hardness. The aim includes the development of a method for cost-effectively producing such coatings. The hard material composite coating according to the invention contains cubic TiAlCN and hexagonal AlN as main phases, wherein the cubic TiAlCN is microcrystalline fcc-Ti1-xAlxCyNz where x>0.75, y=0 to 0.25 and z=0.75 to 1 having a crystallite size of ?=0.Type: ApplicationFiled: November 12, 2010Publication date: August 30, 2012Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Ingolf Endler, Mandy Hoehn
-
Publication number: 20120202054Abstract: Bodies coated with a SiC layer or with a multilayer coating system that include at least a SiC hard material layer, wherein the SiC layer consists of halogen-containing nanocrystalline 3C-SiC or a mixed layer which consists of halogen-containing nanocrystalline 3C-SiC and amorphous SiC or halogen-containing nanocrystalline 3C-SiC and amorphous carbon.Type: ApplicationFiled: March 17, 2010Publication date: August 9, 2012Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., SPAWNT PRIVATE S.à.r.lInventors: Ingolf Endler, Mandy Höhn, Thoralf Gebel, Christian Bauch, Rumen Deltschew, Sven Holl, Gerd Lippold, Javad Mohsseni, Norbert Auner
-
Publication number: 20120141783Abstract: The invention relates to bodies made of metal, hard metal, cermet, ceramic or semiconductor material, which are coated with an Al2O3-layer or a multi-layered layer system containing at least one Al2O3-layer, and to a method for coating the type of bodies. The aim of the invention is to coat bodies made of metal, cermet, ceramic or semiconductor material with one or more Al2O3-layers, the layers being very hard >27 GPa and having an improved resistance to wear compared to traditional Al2O3-layers and are economical to produce. In the claimed coated bodies, the Al2O3-layer comprises totally or mainly a phase mixture of ? (theta)-aluminum oxide and ? (gamma)-aluminum oxide. In order to produce this type of coated body, the invention proposes a method in which the bodies are coated at temperatures of between 700° C. and 1050° C. and pressures >0.2 kPa by means of a thermal CVD-process without plasma stimulation, and one or more aluminum halogenides are used as oxygen precursor N2O and as Al-precursors.Type: ApplicationFiled: August 10, 2010Publication date: June 7, 2012Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Mandy Hoehn, Ingolf Endler
-
Publication number: 20100233511Abstract: The invention relates to bodies coated with a hard material, comprising a multi-layer coating system containing at least one Ti1-xAlxN hard material coating and to a multi-stage CVD method for producing the bodies. The aim of the invention is to achieve excellent adhesion of the Ti1-xAlxN hard material coating in bodies coated with a hard material comprising a multi-layer coating system containing at least one Ti1-xAlxN hard material coating and a high degree of wear resistance. According to the invention, the bodies coated with a hard material comprising a multi-layer coating system containing at least one Ti1-xAlxN hard material coating are characterized by the following features: the coating system consists of a) a bonding coating applied to the body, consisting of TiN, Ti(C,N) or TiC; b) a phase gradient coating that is applied to the bonding coating; and c) the single or multi-phase Ti1-xAlxN hard material coating or coatings applied to the phase gradient coating.Type: ApplicationFiled: October 10, 2008Publication date: September 16, 2010Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Ingolf Endler, Mandy Hoehn