M.Sc. Karsten Harnisch
M.Sc. Karsten Harnisch
06/2024 - heute | Wissenschaftlicher Mitarbeiter |
05/2021 - 05/2024 | Wissenschaftlicher Mitarbeiter |
02/2017 - 04/2021 | Stipendiat (MEMoRIAL) |
04/2013 - 12/2016 | Wissenschaftliche Hilfskraft |
10/2011 - 01/2017 | Studium Maschinenbau / Vertiefungsrichtung Werkstofftechnik |
Current projects
Cross-Disciplinary Multidimensional Material Analysis
Duration: 01.03.2024 to 31.12.2027
The Cross-Disciplinary Multidimensional Material Analysis project plans to make efficient use of the infrastructure available at OVGU and to promote the targeted further development of multidimensional, coupled methods of scanning electron and ion microscopy with structure elucidation, element analysis and in-situ testing technology in the field of interdisciplinary material development.
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Completed projects
HardKarbid: Development of a hard-phase-reinforced iron-based alloy (1300HV30) with a hard-phase content of over 50% and a martensitic matrix and development of the manufacturing process for an agricultural technology tool
Duration: 01.12.2021 to 30.11.2023
The aim of the project is to develop an alternative hard-phase-reinforced, powder-metallurgically produced tool by developing an iron-based alloy with a hard-phase content of over 50%, which is formed from a molten phase and embedded in a martensitic structure. This is realized by developing at least three alloy types and simulating the formation of the hard material particle fraction in the melt by thermodynamic calculations. Melt metallurgical 25 g samples (melt) are produced in order to investigate the potential for further technical application. The powder from the novel alloys is fractionated to a uniform particle size and pressed into green compacts. The samples are subjected to a machining process (e.g. chipping) and post-processed in a newly developed sintering and heat treatment process. Compared to the state of the art, the hardness of the alloy is increased and costs are reduced at the same time. The target market for this development is tools and products in the agricultural technology sector with around 1,000 potential customer companies.
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PC4PM - Powder Coatings for Printed Materials
Duration: 01.08.2020 to 31.07.2022
As part of the R&D cooperation project "PC4PM - Powder Coatings for Printed Materials", powder coating is to be tested and established for the first time as a surface coating process for additively manufactured materials. The planned development work includes the coating of generatively manufactured plastics and metals with abrasion-resistant powder coatings. This reduces the production-related surface roughness of generatively manufactured components and significantly increases their wear resistance, which contributes to an improvement in component properties in numerous applications. In addition to influencing the look and feel, it is also possible to increase abrasion and wear resistance. The project is also pursuing the development of low-melting powder coatings with low cross-linking temperatures. Lowering the crosslinking temperature would result in a reduction in the process energy required and therefore significant cost and energy savings in the coating process. In addition, the range of applications for powder coating of plastics would be significantly expanded, as the high cross-linking temperatures of powder coatings mean that plastics are currently not suitable for this type of coating
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MEMoRIAL-M2.4 | In-situ SEM methods to improve implant materials
Duration: 01.02.2017 to 30.04.2021
Background
>> replacement of human joints (implants) becomes more important (demographic change)
>> materials for medical implants offer several challenges and potential for improvements
Objective
>> to offer small-scale solutions for improvements by using in-situ methods to investigate and analyze materials and the related mechanisms for medical implants
Methods
>> mechanical and thermal treatments
>> SEM-EDS (energy dispersive X-ray spectroscopy) / EBSD (electron backscatter diffraction) in-situ methods
Results
>> clarification of phase transformation mechanisms of CoCrMo alloys (requirements, activation, process, consequences)
>> phase-related (microstructure) properties of CoCrMo alloys in various conditions
Conclusions
>> materials science-based recommendations for possible improvements for medical implants with regard to possible changes of chemical composition and/or pre-treatments before implantation
Orignality
>> research at the intersection between mechanical engineering and medicine
>> unique combination of methods (in-situ SEM) and materials (biomedical implants) offers new informative and helpful insights into mechanisms in materials for medical implants
Keywords
CoCrMo, in-situ, Scanning Electron Microscopy (SEM), phase transformation
Development of suitable processes and tools for the precision machining of Co-Cr-Mo superalloys to increase the safety of medical implants
Duration: 01.09.2017 to 01.09.2019
For medical joint pairings or endoprostheses, which are made of high-strength and difficult-to-machine materials such as cobalt-chromium-molybdenum, titanium or ceramic, an economical manufacturing process is necessary to guarantee a flawless product. In the case of medical implants, there are sometimes specific requirements for the alloys used (e.g. body-compatible and medically approved materials or resistance to heat development and compressive or tensile stresses) and demands for trouble-free, multi-axis load transmission over several million load cycles and multi-axis motion loading. In order to meet the demands for increasing load cycles, higher rigidity, greater force transmission torques, lower weight, more complex geometries and improved wear behavior, efficient manufacturing processes are to be developed on the basis of fundamental material technology studies. The material Co-Cr-Mo is difficult to machine. After turning and milling, components made of high-strength alloys have to undergo costly and time-consuming grinding and polishing. Nevertheless, the required surface structures and edge zone properties, such as tensile and compressive residual stresses, roughness values and the avoidance of burr formation, can often not be sufficiently achieved. Even with standardized surfaces, signs of wear of the sliding partners become visible. Inadequate surface qualities result in limited functional properties, possible joint fracture and, consequently, complete functional failure of entire body areas.
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2026
Peer-reviewed journal article
Investigation of x-ray energy characteristics in x-ray fluorescence applications using dual pyroelectric crystals
Ebrahim, Irshad; Harnisch, Karsten; Wilke, Markus
In: Journal of vacuum science & technology. B, Microelectronics processing and phenomena - New York, NY : Inst., Bd. 44 (2026), Heft 1, Artikel 014201, insges. 13 S.
2025
Book chapter
Optimization of X-ray energy for XRF applications using dual LiTaO3 pyroelectric crys
Ebrahim, Irshad; Harnisch, Karsten; Wilke, Markus
In: 2025 38th International Vacuum Nanoelectronics Conference (IVNC) , 2024 - [Piscataway, NJ] : IEEE ; Knápek, Alexandr, insges. 2 S. [Konferenz: 38th International Vacuum Nanoelectronics Conference (IVNC), Reykjavik, Iceland, 08-11 July 2025]
Peer-reviewed journal article
Effects of Cr addition on Ti implant alloys (Ti-Cr/Ti-Al-V-Cr) to enhance corrosion and wear resistance
Herbster, Maria; Garke, Bernd; Harnisch, Karsten; Michael, Oliver; Lieb, Alexandra; Betke, Ulf; Könnecke, Mandy; Heyn, Andreas; Kriegel, Paulina; Thärichen, Henrike; Bertrand, Jessica; Krüger, Manja; Halle, Thorsten
In: Journal of the mechanical behavior of biomedical materials - Amsterdam [u.a.] : Elsevier, Bd. 164 (2025), Artikel 106899, insges. 23 S.
2024
Peer-reviewed journal article
Silver-integrated EDM processing of TiAl6V4 implant material has antibacterial capacity while optimizing osseointegration
Büssemaker, Hilmar; Meinshausen, Ann-Kathrin; Bui, Viet Duc; Döring, Joachim; Voropai, Vadym; Buchholz, Adrian; Müller, Andreas Johann; Harnisch, Karsten; Martin, André; Berger, Thomas; Schubert, Andreas; Bertrand, Jessica
In: Bioactive materials - [Bejing] : KeAi Publishing, Bd. 31 (2024), S. 497-508
Ultrasonic vibration assisted silver integration by powder mixed EDM for antibacterial surfaces
Bui, Viet Duc; Martin, André; Berger, Thomas; Harnisch, Karsten; Döring, Joachim; Bertrand, Jessica; Schubert, Andreas
In: Procedia CIRP / CIRP - The International Academy for Production Engineering - Amsterdam [u.a.] : Elsevier, Bd. 123 (2024), S. 410-415
2023
Abstract
Cubic GaN epilayers grown by remote epitaxy on graphene covered 3C-SiC (001)/Si(001) substrates
Littmann, Mario; August, Olga; Harnisch, Karsten; Halle, Thorsten; Bertram, Frank; Christen, Jürgen
In: ICNS-14 - Fukuoka, Japan . - 2023, Artikel TuP-GR-7 [Konferenz: 14th International Conference on Nitride Semiconductors, ICNS-14, Fukuoka, Japan, November 12-17, 2023]
2022
Book chapter
Study on flushing condition for improving silver deposition in silver nano-powder mixed EDM
Bui, Viet Duc; Meinshausen, Ann-Kathrin; Berger, Thomas; Martin, André; Harnisch, Karsten; Bertrand, Jessica; Schubert, Andreas
In: Proceedings of the 22nd International Conference of the European Society for Precision Engineering and Nanotechnology , 2022 - Bedford, UK : euspen, S. 289-292
Peer-reviewed journal article
3D-Druck - Funktionalisierte Pulverlackbeschichtungen
Harnisch, Karsten; Wilke, Markus; Schulz, Jana; Sureck, Ludwig
In: Journal für Oberflächentechnik - Wiesbaden : Vieweg, Bd. 62 (2022), Heft 11, S. 46-49
Microstructure-dependent crevice corrosion damage of implant materials CoCr28Mo6, TiAl6V4 and REX 734 under severe inflammatory conditions
Herbster, Maria; Rosemann, Paul; Michael, Oliver; Harnisch, Karsten; Ecke, Martin; Heyn, Andreas; Lohmann, Christoph H.; Bertrand, Jessica; Halle, Thorsten
In: Journal of biomedical materials research / B - Hoboken, NJ : Wiley, Bd. 110 (2022), Heft 7, S. 1687-1704 [First published 17.02.2022]
Microstructural modification of TiAl6V4 alloy to avoid detrimental effects due to selective in vivo crevice corrosion
Herbster, Maria; Harnisch, Karsten; Kriegel, Paulina; Heyn, Andreas; Krüger, Manja; Lohmann, Christoph H.; Bertrand, Jessica; Halle, Thorsten
In: Materials - Basel : MDPI, Bd. 15 (2022), Heft 16, Artikel 5733, insges. 26 S.
2021
Peer-reviewed journal article
Effect of deep rolling on subsurface conditions of CoCr28Mo6 wrought alloy to improve the wear resistance of endoprostheses
Herbster, Maria; Harnisch, Karsten; Haberland, Eva; Kriegel, Paulina; Döbberthin, Christin; Heyn, Andreas; Döring, Joachim; Lohmann, Christoph H.; Bertrand, Jessica; Halle, Thorsten
In: Journal of the mechanical behavior of biomedical materials - Amsterdam [u.a.] : Elsevier, Bd. 118 (2021), Artikel 104398
2020
Abstract
Microstructural modification, characterization and corrosion resistance of a biomedical low carbon CoCrMo-alloy
Harnisch, Karsten; Klee, C.; Bairl, T.; Halle, Thorsten; Rosemann, Paul
In: Materials Science Engineering 2020 Digital Conference, MSE 2020 [Materials Science and Engineering, MSE, Virtual Congress, Sep. 22-25, 2020]
Peer-reviewed journal article
In vivo corrosion and damages in modular shoulder prostheses
Herbster, Maria; Märtens, Nicole; Harnisch, Karsten; Berth, Alexander; Döring, Joachim; Lohmann, Christoph H.; Halle, Thorsten; Bertrand, Jessica
In: Journal of biomedical materials research / B - Hoboken, NJ : Wiley, Bd. 108 (2020), Heft 5, S. 1764-1778
Pyroelectric X-ray generator for XRF in combination with optical microscopy
Wilke, Markus; Hanns, L.; Harnisch, Karsten; Knapp, Wolfram; Ecke, Martin; Halle, Thorsten
In: IOP conference series. Materials science and engineering / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882 (2020), Paper 012026, insgesamt 8 Seiten [Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
Microstructure and surface investigations of TiAl6V4 and CoCr28Mo6 orthopaedic femoral stems
Herbster, Maria; Harnisch, Karsten; Baierl, Toni; Rosemann, Paul; Lohmann, Christoph H.; Bertrand, Jessica; Halle, Thorsten
In: IOP conference series / Materials science and engineering / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882.2020, Paper 012004, insgesamt 16 Seiten [Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
2019
Abstract
Phase analyses of surgical CoCrMo alloys in different conditions by SEM and EBS
Harnisch, Karsten; Klee, Carsten; Baierl, Toni; Halle, Thorsten; Rosemann, Paul
In: ResearchGATE - Cambridge, Mass. : ResearchGATE Corp. . - 2019 [Konferenz: Microscopy Conference, MC, Berlin, 2019]
Gefügemodifizierung und -charakterisierung einer medizinischen CoCrMo-Legierung
Harnisch, Karsten; Rosemann, Paul; Klee, Carsten; Baierl, Toni; Halle, Thorsten
In: WW WerkstoffWoche - Sankt Augustin : Deutsche Gesellschaft für Materialkunde e.V. . - 2019 [Konferenz: Werkstoffwoche 2019, Dresden]
Peer-reviewed journal article
Focusing of x-rays emitted by a pyroelectric x-ray generator for micro x-ray fluorescence
Wilke, Markus; Harnisch, Karsten; Knapp, Wolfram; Ecke, Martin; Halle, Thorsten
In: Journal of vacuum science & technology. B, Microelectronics processing and phenomena - New York, NY : Inst. - Vol. 37.2019, 1, Artikel 011203
2018
Abstract
Investigations on electrical properties and correlations to electron and X-ray energies of pyroelectric LiTaO3and LiNbO3
Wilke, Markus; Harnisch, Karsten; Knapp, Wolfram; Ecke, Martin; Senft, Thorsten; Halle, Thorsten
In: 2018 31st International Vacuum Nanoelectronics Conference (IVNC) - [Piscataway, NJ] : IEEE ; Gotoh, Yasuhito, insges. 2 S. [Konferenz: 31st International Vacuum Nanoelectronics Conference (IVNC) Kyoto, Japan, 9-13 July]
Self-focusing of electrons emitted by rectangular pyroelectric crystals - a study on geometrical conditions for optimized X-ray intensities
Harnisch, Karsten; Wilke, Markus; Knapp, Wolfram; Ecke, Martin; Hanns, Lucas; Halle, Thorsten
In: 2018 31st International Vacuum Nanoelectronics Conference (IVNC) - [Piscataway, NJ] : IEEE, insges. 2 S. [Konferenz: 31st International Vacuum Nanoelectronics Conference (IVNC)Kyoto, Japan, 9-13 July 2018]
Peer-reviewed journal article
Optimization of pyroelectric electron sources for the generation of x-rays for x-ray fluorescence applications
Wilke, Markus; Harnisch, Karsten; Knapp, Wolfram; Ecke, Martin; Halle, Thorsten
In: Journal of vacuum science & technology. B, Microelectronics processing and phenomena - New York, NY : Inst. - Vol. 36.2018, 2, Art. 02C101
Ceramic prosthesis surfaces induce an inflammatory cell response and fibrotic tissue changes
Bertrand, Jessica; Delfosse, Daniel; Mai, Viola; Awiszus, Friedemann; Harnisch, Karsten; Lohmann, Christoph H.
In: The bone & joint journal - London : British Editorial Society of Bone and Joint Surgery - Bd. 100-B.2018, 7, Seite 882-890
2017
Abstract
Gefüge- und Phasenanalyse einer biokompatiblen Co-Cr-Mo-Legierung
Dieck, Sebastian; Ecke, Martin; Harnisch, Karsten; Rosemann, Paul; Halle, Thorsten
In: Berlin: BAM, 2017, 1 Online-Ressource [Konferenz: Werkstoffwoche 2017, Dresden, 27. - 29.09.2017; Veröffentlicht in Publica - Publikationsserver der Bundesanstalt für Materialforschung und -prüfung (BAM)]
Book chapter
Intensitätsoptimierung von pyroelektrischen Röntgenquellen zum Einsatz in der Materialanalyse
Harnisch, Karsten; Wilke, Markus; Knapp, Wolfram; Ecke, Martin; Halle, Thorsten
In: 16. Sommerkurs Werkstoffe und Fügen - Magdeburg, 08. und 09. September 2017 , 2017 , korrigierte Auflage - Magdeburg : Universitätsbibliothek, S. 105-112
Investigations of pyroelectric crystals for vacuum electron sources and X-ray applications
Wilke, Markus; Knapp, Wolfram; Ecke, Martin; Harnisch, Karsten; Zierau, Marco; Halle, Thorsten
In: 2017 30th International Vacuum Nanoelectronics Conference (IVNC) , 2017 - [Piscataway, NJ] : IEEE, S. 166-167 [Konferenz: 30th International Vacuum Nanoelectronics Conference (IVNC), Regensburg, Germany, 10-14 July 2017]
Peer-reviewed journal article
Pyroelektrische Röntgenquellen zum Einsatz in der Materialanalyse - Optimierung der material- und vakuumtechnischen Eigenschaften
Wilke, Markus; Knapp, Wolfram; Harnisch, Karsten; Ecke, Martin; Halle, Thorsten
In: Vakuum in Forschung und Praxis - Weinheim : Wiley-VCH, Bd. 29 (2017), Heft 5, S. 36-41