caa a22 4500 467995850 CHVBK 20180323112557.0 cr unu---uuuuu 170328e19900101xx s 000 0 eng 10.1007/BF01244155 doi (NATIONALLICENCE)springer-10.1007/BF01244155 Examination of materials with the mobile thermal microscope ALADIN, a new analytical tool of materials technology [Elektronische Daten] [Volker Thien, Peter Vetterlein, Michael Kröning, Erich Winschuh] Frequency-modulated optical beams—preferentially laser beams—can excite temperature-modulated thermal waves in a material; their properties are described. Photothermal methods can be used to determine properties of materials at and/or below the surface. The working principle of the thermal microscope ALADIN (advancedlaser-aideddefectinspection innon-destructive testing) is explained; this instrument (developed by Siemens/KWU in collaboration with Phototherm Dr. Petry GmbH/Saarbrücken) provides the user with a flexible, high performance system of modular design. The most important features are mobility, compact design of the sensor and its suitability for use under extremely ambient conditions, e.g. field metallography in power plants. The equipment allows scanning of an area up to 25 mm2 with a lateral resolution in the micrometer range. Some examples are given; one of the main applications will be the determination of fatigue or creep damages at metal surfaces. Springer-Verlag, 1990 properties of thermal waves nationallicence photothermal effect nationallicence laser-aided thermal microscope nationallicence properties at and below materials surfaces nationallicence mobile device nationallicence field metallography nationallicence creep nationallicence fatigue nationallicence Thien Volker Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut Vetterlein Peter Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut Kröning Michael Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut Winschuh Erich Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut Microchimica Acta Springer-Verlag 101/1-6(1990-01-01), 25-34 0026-3672 101:1-6<25 1990 101 604 https://doi.org/10.1007/BF01244155 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01244155 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Thien Volker Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut NATIONALLICENCE 700 1- Vetterlein Peter Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut NATIONALLICENCE 700 1- Kröning Michael Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut NATIONALLICENCE 700 1- Winschuh Erich Division of Materials Engineering and Research, Siemens AG, Group Power Generation KWU, P. O. Box 10 17 55, D-4330, Mülheim/Ruhr, Federal Republic of Germany aut NATIONALLICENCE 773 0- Microchimica Acta Springer-Verlag 101/1-6(1990-01-01), 25-34 0026-3672 101:1-6<25 1990 101 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer