@article{HartmannReichling, author = {Hartmann, J{\"u}rgen and Reichling, M.}, title = {Photothermische Mikroskopie}, publisher = {VDI-Bericht 1379}, pages = {221 -- 226}, language = {de} } @article{Hartmann, author = {Hartmann, J{\"u}rgen}, title = {Condensed matter: structural, mechanical, and thermal properties}, series = {Applied Physics Letters}, volume = {73}, journal = {Applied Physics Letters}, number = {6}, pages = {756 -- 758}, language = {en} } @inproceedings{Hartmann, author = {Hartmann, J{\"u}rgen}, title = {Improvement of the active layers of a MIS-structure semiconductor gas sensor for HF and F}, language = {en} } @inproceedings{HartmannManaraArduini, author = {Hartmann, J{\"u}rgen and Manara, Jochen and Arduini, Mariacarla}, title = {A Novel Approach for Non-Destructive Testing of the Adhesion of Thermal Barrier Coatings}, publisher = {The Future of Gas Turbine Technology ; 8 th International Gas Turbine Conference}, address = {Br{\"u}ssel (Belgien)}, pages = {12 -- 13}, abstract = {The operation temperatures of gas turbine engines have been increased significantly to optimize their efficiency factor. To protect the metallic blades from these high temperatures, thermal barrier coatings (TBCs) are applied onto the turbine blades. These layers must have a good adhesion to the supporting turbine blade. A poor adhesion may lead to a delamination of the layer during operation and finally to a destruction of the turbine blade and eventually the complete turbine. It is therefore necessary, to check the quality of the layer adhesion regularly during service or preferably during operation. Approaches for non-contact and nondestructive techniques by using optical or infrared radiation are not sophisticated up to now. Hence in this paper a new attempt to improve these optical or infrared-optical methods is described. The presented idea relies on the application of different wavelengths for the used measurement system. Using a short wavelength range, where the TBC is semitransparent, allows the measurement of the temperature of the turbine blade. Using a second, long wavelength range where the TBC is non-transparent, the temperature of the surface of the TBC can be determined. As the thermal contact is usually correlated with the mechanical adhesion such measurements can be a possible tool for nondestructively testing the adhesion of TBCs.}, language = {en} } @inproceedings{HartmannWernerFischeretal., author = {Hartmann, J{\"u}rgen and Werner, L. and Fischer, J. and Johannsen, U.}, title = {Accurate determination of the spectral responsivity of silicon trap detectors between 238 nm and 1015 nm using a laser-based cryogenic radiometer}, address = {Madrid (Spanien)}, language = {en} } @misc{HartmannReichling, author = {Hartmann, J{\"u}rgen and Reichling, M.}, title = {A new insight into local heat transfer in polycrystalline diamond}, address = {Edinburgh (Schottland)}, language = {en} } @misc{HartmannReichling, author = {Hartmann, J{\"u}rgen and Reichling, M.}, title = {Quantitative photothermal measurement of thermal barriers in CVD-Diamond}, address = {Edinburgh (Schottland)}, language = {en} } @inproceedings{HartmannReichlingMatthias, author = {Hartmann, J{\"u}rgen and Reichling, M. and Matthias, E.}, title = {Thermoreflectance measurements of single thermal barriers in CVD-Diamond}, address = {Nanjing (China)}, language = {en} } @inproceedings{Hartmann, author = {Hartmann, J{\"u}rgen}, title = {Photothermal microscopy on CVD-diamond}, address = {Ebernburg}, language = {en} } @inproceedings{HartmannNilssonFricke, author = {Hartmann, J{\"u}rgen and Nilsson, O. and Fricke, J.}, title = {Thermal diffusivity measurements on two-layered systems with the laser-flash method}, address = {Lissabon (Portugal)}, language = {en} } @inproceedings{HartmannManaraMehling, author = {Hartmann, J{\"u}rgen and Manara, Jochen and Mehling, H.}, title = {The role of the index of refraction in the generation and propagation of blackbody radiation}, address = {Funchal (Portugal)}, language = {en} } @inproceedings{HartmannManaraEbertetal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Ebert, Hans-Peter and Lenhart-Rydzek, M. and Tutschke, Andreas and Hallam, Andrew}, title = {LWIR pyrometry for the measurement of thermal barrier coatings within the EU project STARGATE}, language = {en} } @inproceedings{HartmannLenhartRydzekStarketal., author = {Hartmann, J{\"u}rgen and Lenhart-Rydzek, M. and Stark, Thomas and Arduini-Schuster, Mariacarla and Manara, Jochen}, title = {Enhanced measuring technique to determine the angle dependent surface emittance from 200 °C up to 1600 °C}, address = {Funchal (Portugal)}, language = {en} } @inproceedings{HartmannAnhaltEdler, author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Edler, F.}, title = {High-temperature fixed-points for improved temperature metrology above 1100 °C}, address = {Graz}, language = {en} } @inproceedings{HartmannKrenekAnhaltetal., author = {Hartmann, J{\"u}rgen and Krenek, S. and Anhalt, Klaus and Lindemann, A. and Hollandt, J{\"o}rg}, title = {Dynamic Emissivity Measurement: First Results}, address = {Graz}, language = {en} } @inproceedings{HartmannAnhaltSargeetal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Sarge, S.M. and Pagel, R. and Schindler, A. and Denner, T.}, title = {Eutectic high-temperature fixed-points for improves traceability in DSC/DTA}, address = {Graz}, language = {en} } @misc{HartmannAnhaltPageletal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Pagel, R. and Sarge, S.}, title = {Temperature calibration of thermoanalytical apparatus above 1000 °C by means of Metal-Carbon Eutectics}, address = {Rotterdam (Niederlande)}, language = {en} } @inproceedings{HartmannKruegerAnhaltetal., author = {Hartmann, J{\"u}rgen and Kr{\"u}ger, U. and Anhalt, Klaus and Taubert, Dieter Richard and Schmidt, Franz}, title = {CCD-camera for measuring temperature and spectral radiance}, address = {Bern}, language = {en} } @inproceedings{HartmannAnhaltTaubertetal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Taubert, Dieter Richard and Kr{\"u}ger, U. and Schmidt, Franz}, title = {CCD-camera for measuring temperature and spectral radiance}, address = {Portoroz (Slowenien)}, language = {en} } @inproceedings{HartmannManaraStarketal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Stark, Thomas and Zipf, Matthias and Arduini, Mariacarla and Schreiber, Ekkehard and Kr{\"u}ger, U.}, title = {Experimental set-up for dynamic material investigation}, address = {Graz ({\"O}sterreich)}, language = {en} } @inproceedings{HartmannHarrerDotterweichetal., author = {Hartmann, J{\"u}rgen and Harrer, S. and Dotterweich, C. and Zink, Markus H.}, title = {On the conduction process of dielectric liquids based on mineral oil}, address = {Buenos Aires (Argentinien)}, language = {en} } @inproceedings{HartmannZipfManaraetal., author = {Hartmann, J{\"u}rgen and Zipf, Matthias and Manara, Jochen and Stark, Thomas and Arduini, Mariacarla and Ebert, Hans-Peter}, title = {Non-Contact Temperature Measurement Of Combustion Gases at High Temperatures and High Pressures}, address = {Zakopane (Polen)}, language = {en} } @inproceedings{HartmannAnhaltHollandtetal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Hollandt, J{\"o}rg and Schreiber, Ekkehard and Yamada, Y.}, title = {Improved thermal stability of the linear pyrometer LP3 for high temperature measurements within the EU-Project HIMERT}, address = {Berlin}, language = {en} } @inproceedings{HartmannTaubert, author = {Hartmann, J{\"u}rgen and Taubert, Dieter Richard}, title = {Assessing blackbody emissivity by Monte Carlo Simulation}, address = {Erfurt}, language = {en} } @inproceedings{HartmannManaraZipfetal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Zipf, Matthias and Stark, Thomas and Arduini, Mariacarla and Ebert, Hans-Peter and Tutschke, Andreas and Hallam, Andrew and Hanspal, Jagdevinder and Langley, Mark and Hodge, D.}, title = {Development of Long Wavelength Infrared Radiation Thermometry for Measurements in Gas Turbines}, address = {Darmstadt}, language = {en} } @inproceedings{HartmannManaraArduini, author = {Hartmann, J{\"u}rgen and Manara, Jochen and Arduini, Mariacarla}, title = {An Attempt to Non-Destructively Qualify the Adhesion of Thermal Barrier Coatings}, address = {Zakopane (Polen)}, language = {en} } @inproceedings{HartmannManaraZipfetal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Zipf, Matthias and Stark, Thomas and Arduini, Mariacarla and Ebert, Hans-Peter and Tutschke, Andreas and Hallam, Andrew and Hanspal, Jagdevinder and Langley, Mark}, title = {Construction, Calibration and Application of a LWIR Pyrometer within the EU Project STARGATE}, address = {Zakopane (Polen)}, abstract = {The EU project STARGATE (Sensors Towards Advanced Monitoring and Control of Gas Turbine Engines) has the headline objective to develop a suite of advanced sensors, instrumentation and related systems in order to contribute to the development of the next generation of green and efficient gas turbine engines. To increase the efficiency of gas turbines higher combustion temperatures and higher turbine inlet temperatures are required. This implies that turbine blades and vanes are exposed to higher temperatures. Advanced thermal barrier coatings (TBCs) based on ceramic materials protect the components from overheating and ensure mechanical integrity. Still, materials and coatings need to be stressed to their limits to reach the challenging goals of an efficiency increase. Under these circumstances, it is crucial to have sensing techniques available that are capable of accurately monitoring the temperature of turbine parts in order to prevent damages within the engine. The approach to overcome current limitations of existing techniques is to use long wavelength infrared (LWIR) pyrometry as TBCs are usually semi-transparent in the near or short wavelength infrared. Therefore one work package within the STARGATE project is dedicated to the development of a LWIR radiation thermometer to measure the surface temperature of TBCs contactless during operation of the gas turbine engines. The paper shortly gives an overview of the investigation performed within the STARGATE project. The construction, calibration and application of the LWIR radiation thermometer is described in detail and results obtained on a test facility are presented. The paper closes with an outlook on future plans of implementing the LWIR pyrometer in the quality system of gas turbine operation.}, language = {en} } @inproceedings{HartmannManaraZipfetal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Zipf, Matthias and Stark, Thomas and Arduini, Mariacarla and Ebert, Hans-Peter and Tutschke, Andreas and Hallam, Andrew and Hanspal, Jagdevinder and Langley, Mark}, title = {Long Wavelength Infrared Radiation Thermometry for Non-Contact Temperature Measurements in Gas Turbines}, address = {London}, language = {en} } @inproceedings{Hartmann, author = {Hartmann, J{\"u}rgen}, title = {New developments in high-temperature measurement techniques}, address = {Osijek (Kroatien)}, language = {en} } @inproceedings{HartmannKnoppLenskietal., author = {Hartmann, J{\"u}rgen and Knopp, Kevin and Lenski, Philipp and Ochs, Dennis and Z{\"a}nglein, Marc and Manara, Jochen and Arduini, Mariacarla and Hemberger, Frank and Vidi, Stephan}, title = {Einsatz optischer Sensoranwendungen f{\"u}r additive Fertigungsverfahren}, address = {Dresden}, language = {de} } @inproceedings{HartmannKnoppLenskietal., author = {Hartmann, J{\"u}rgen and Knopp, Kevin and Lenski, Philipp and Ochs, Dennis and Z{\"a}nglein, Marc and Stark, Thomas and Zipf, Matthias and Arduini, Mariacarla and Hemberger, Frank and Vidi, Stephan and Manara, Jochen and M{\"u}ller, Michael and M{\"o}ller, F.}, title = {Systematische thermophysikalische Charakterisierung von W{\"a}rmed{\"a}mmschichten}, address = {N{\"u}rnberg}, language = {de} } @misc{HartmannKnoppZaengleinetal., author = {Hartmann, J{\"u}rgen and Knopp, Kevin and Z{\"a}nglein, Marc and Manara, Jochen and Stark, Thomas and Zipf, Matthias and Schreiber, Ekkehard and Kr{\"u}ger, U. and Brunner, Martin and M{\"u}ller, Michael}, title = {Messsystem f{\"u}r dynamische Materialuntersuchung bei hohen Temperaturen}, address = {N{\"u}rnberg}, language = {de} } @inproceedings{HartmannManaraStarketal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Stark, Thomas and Zipf, Matthias and Arduini, Mariacarla and Ebert, Hans-Peter and Tutschke, Andreas and Hallam, Andrew and Hanspal, Jagdevinder and Langley, Mark}, title = {Entwicklung und Test eines langwelligen Strahlungsthermometers zur ber{\"u}hrungslosen Temperaturmessung in Gasturbinen w{\"a}hrend des Betriebs}, address = {Berlin}, isbn = {978-3-944659-04-6}, pages = {43 -- 48}, language = {de} } @inproceedings{HartmannJoumaniHayetal., author = {Hartmann, J{\"u}rgen and Joumani, Y. and Hay, B. and Razouk, R. and Anhalt, Klaus and Sarge, S. and Wu, J. and Milosevic, N. and Cataldi, M. and Lorrette, C. and Boboridis, K. and Manara, Jochen and Vidi, Stephan and Pichler, P. and Denner, T.}, title = {EMPIR Hi-TRACE project - Metrological facilities for measuring thermophysical properties up to 3000 °C}, address = {Chengdu (China)}, language = {en} } @inproceedings{HartmannKnoppLenskietal., author = {Hartmann, J{\"u}rgen and Knopp, Kevin and Lenski, Philipp and Z{\"a}nglein, Marc and Manara, Jochen and Stark, Thomas and Zipf, Matthias and Arduini, Mariacarla and Schreiber, Ekkehard and Kr{\"u}ger, U. and Schmidt, Franz and Brunner, Martin}, title = {Optical Sensor systems for additive manufacturing}, address = {Chengdu (China)}, language = {en} } @inproceedings{HartmannManaraZipfetal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Zipf, Matthias and Stark, Thomas and Arduini, Mariacarla and Knopp, Kevin and Lenski, Philipp and Ochs, Dennis and Z{\"a}nglein, Marc and Schreiber, Ekkehard and Schmidt, Franz}, title = {Experimental set-up for dynamic material investigation at high-temperatures for power engineering and additive manufacturing}, address = {Freiburg}, language = {en} } @inproceedings{HartmannManaraStarketal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Stark, Thomas and Zipf, Matthias and Arduini, Mariacarla and Schreiber, Ekkehard and Kr{\"u}ger, U. and Knopp, Kevin and Z{\"a}nglein, Marc}, title = {Hochtemperaturmessung und Materialuntersuchung f{\"u}r Energietechnik und additive Fertigungsverfahren}, address = {Dresden}, language = {de} } @inproceedings{HartmannManaraStarketal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Stark, Thomas and Arduini, Mariacarla and Ebert, Hans-Peter and Zipf, Matthias}, title = {Non-contact temperature measurement of combustion gases at high temperatures and high pressures}, address = {Graz ({\"O}sterreich)}, language = {en} } @inproceedings{HartmannManaraStarketal., author = {Hartmann, J{\"u}rgen and Manara, Jochen and Stark, Thomas and Zipf, Matthias and Arduini, Mariacarla and Ebert, Hans-Peter}, title = {High temperature test-rig for emissvity and non-contact temperature measurements}, address = {Graz ({\"O}sterreich)}, language = {en} } @inproceedings{HartmannAnhalt, author = {Hartmann, J{\"u}rgen and Anhalt, Klaus}, title = {Radiometric measurements of eutectic fixed-point cells at PTB}, address = {Okayama (Japan)}, language = {en} } @inproceedings{MachinHartmannAnhaltetal., author = {Machin, Graham and Hartmann, J{\"u}rgen and Anhalt, Klaus and Beyon, G. and Edler, F. and Fourez, S. and Jimeno-Largo, p. and Lowe, D. and Morice, R. and Sadli, M. and Villamanan, M.}, title = {Future perspectives for high-temperature metrology from the FP5 HIMERT project}, address = {Lyon (Frankreich)}, language = {en} } @inproceedings{HartmannTegeler, author = {Hartmann, J{\"u}rgen and Tegeler, E.}, title = {Activities in the field of legal metrology and standardisation of clinical thermometers}, address = {Dubrovnik (Kroatien)}, language = {en} } @inproceedings{HartmannGutschwagerHollandt, author = {Hartmann, J{\"u}rgen and Gutschwager, B. and Hollandt, J{\"o}rg}, title = {PTB Activities in the Field of Testing and Calibration of Clinical IR Ear Thermometers}, address = {N{\"u}rnberg}, language = {en} } @inproceedings{HartmannMachinBeynonetal., author = {Hartmann, J{\"u}rgen and Machin, Graham and Beynon, G. and Fourrez, S. and Lowe, D. and Morice, R. and Sadli, M. and Villamanan, M.}, title = {HIMERT: A pan-European project for development of metal-carbon eutectics as temperature standards}, address = {Chicago (USA)}, language = {en} } @inproceedings{HartmannTaubertHollandtetal., author = {Hartmann, J{\"u}rgen and Taubert, D. and Hollandt, J{\"o}rg and Fischer, J.}, title = {Investigation of the accuracy of the ITS-90 with reference to thermodynamic temperature in the range from 400 °C to 600 °C}, address = {Chicago (USA)}, language = {en} } @inproceedings{HartmannMcEvoyMachinetal., author = {Hartmann, J{\"u}rgen and McEvoy, H.C. and Machin, Graham and Friedrich, R. and Hollandt, J{\"o}rg}, title = {Comparison of the new NPL primary standard Ag fixed-point blackbody source with the primary standard fixed-point of PTB}, address = {Chicago (USA)}, language = {en} } @inproceedings{HartmannBloembergenSasajimaetal., author = {Hartmann, J{\"u}rgen and Bloembergen, P. and Sasajima, N. and Yamada, Y.}, title = {Comparing alternative schemes for realizing the high-temperature part of a future ITS-20XX with the aid of metal-carbon eutectic fixed points}, address = {Chicago (USA)}, language = {en} } @misc{HartmannTaubertFriedrichetal., author = {Hartmann, J{\"u}rgen and Taubert, Dieter Richard and Friedrich, R. and Hollandt, J{\"o}rg}, title = {Improved calibration of the spectral responsivity of interference filter radiometers in the visible and near infrared spectral range at PTB}, address = {Gaithersburg (USA)}, language = {en} } @misc{HartmannFischerSeidel, author = {Hartmann, J{\"u}rgen and Fischer, J. and Seidel, J.}, title = {Improved accuracy in measurement of radiometric apertures with a non-contact technique}, address = {Madrid (Spanien)}, language = {en} } @inproceedings{HartmannAnhaltTaubertetal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Taubert, Dieter Richard and Hollandt, J{\"o}rg}, title = {Absolute radiometry for the MeP-K}, series = {Tempmeko 2010}, booktitle = {Tempmeko 2010}, address = {Portoroz (Slowenien)}, language = {en} } @inproceedings{HartmannKrenekAnhaltetal., author = {Hartmann, J{\"u}rgen and Krenek, S. and Anhalt, Klaus and Lindemann, A. and Hollandt, J{\"o}rg}, title = {A dynamic method to measure emissivity at high-temperatures}, address = {Portoroz (Slowenien)}, language = {en} } @inproceedings{HartmannKeawprasertAnhaltetal., author = {Hartmann, J{\"u}rgen and Keawprasert, T. and Anhalt, Klaus and Taubert, Dieter Richard and Abd ElMageed, A. and Sperling, A.}, title = {Monochromator based absolute calibration of radiation thermometers}, address = {Portoroz (Slowenien)}, language = {en} } @inproceedings{HartmannAnhaltSchindleretal., author = {Hartmann, J{\"u}rgen and Anhalt, Klaus and Schindler, A. and Moriya, Y. and Sarge, S. and Pagel, R. and Denner, T.}, title = {Metal(carbide)-carbon eutectic high-temperature fixed-points for dynamic differential scanning calorimetry}, address = {Portoroz (Slowenien)}, language = {en} }