[{"status":"public","abstract":[{"lang":"eng","text":"(K,Na)NbO3 ceramics have attracted much attention as lead-free piezoelectric materials with high piezoelectric properties. High-quality (K,Na)NbO3 ceramics can be sintered using KNbO3 and NaNbO3 powders synthesized by a hydrothermal method. In this study, to enhance the quality factor of the ceramics, high-power ultrasonic irradiation was employed during the hydrothermal method, which led to a reduction in the particle size of the resultant powders."}],"type":"journal_article","publication":"Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on","language":[{"iso":"eng"}],"keyword":["Q-factor","ceramics","crystal growth from solution","particle size","piezoelectric materials","potassium compounds","powders","sintering","sodium compounds","ultrasonic effects","(K0.48Na0.52)NbO3","KNbO3 powders","NaNbO3 powders","high-power ultrasonic irradiation","lead-free piezoelectric materials","lead-free piezoelectric powders","particle size reduction","piezoelectric properties","quality factor","sintered (K0.48Na0.52)NbO3 ceramics","sintering","ultrasonic-assisted hydrothermal method","Acoustics","Ceramics","Lead","Piezoelectric materials","Powders","Radiation effects","Transducers"],"user_id":"55222","department":[{"_id":"151"}],"_id":"9878","citation":{"apa":"Isobe, G., Maeda, T., Bornmann, P., Hemsel, T., &#38; Morita, T. (2014). Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48Na0.52)NBO3 ceramics. <i>Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions On</i>, <i>61</i>(2), 225–230. <a href=\"https://doi.org/10.1109/TUFFC.2014.6722608\">https://doi.org/10.1109/TUFFC.2014.6722608</a>","mla":"Isobe, G., et al. “Synthesis of Lead-Free Piezoelectric Powders by Ultrasonic-Assisted Hydrothermal Method and Properties of Sintered (K0.48Na0.52)NBO3 Ceramics.” <i>Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions On</i>, vol. 61, no. 2, 2014, pp. 225–30, doi:<a href=\"https://doi.org/10.1109/TUFFC.2014.6722608\">10.1109/TUFFC.2014.6722608</a>.","bibtex":"@article{Isobe_Maeda_Bornmann_Hemsel_Morita_2014, title={Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48Na0.52)NBO3 ceramics}, volume={61}, DOI={<a href=\"https://doi.org/10.1109/TUFFC.2014.6722608\">10.1109/TUFFC.2014.6722608</a>}, number={2}, journal={Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on}, author={Isobe, G. and Maeda, Takafumi and Bornmann, Peter and Hemsel, Tobias and Morita, Takeshi}, year={2014}, pages={225–230} }","short":"G. Isobe, T. Maeda, P. Bornmann, T. Hemsel, T. Morita, Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions On 61 (2014) 225–230.","ieee":"G. Isobe, T. Maeda, P. Bornmann, T. Hemsel, and T. Morita, “Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48Na0.52)NBO3 ceramics,” <i>Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on</i>, vol. 61, no. 2, pp. 225–230, 2014.","chicago":"Isobe, G., Takafumi Maeda, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Synthesis of Lead-Free Piezoelectric Powders by Ultrasonic-Assisted Hydrothermal Method and Properties of Sintered (K0.48Na0.52)NBO3 Ceramics.” <i>Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions On</i> 61, no. 2 (2014): 225–30. <a href=\"https://doi.org/10.1109/TUFFC.2014.6722608\">https://doi.org/10.1109/TUFFC.2014.6722608</a>.","ama":"Isobe G, Maeda T, Bornmann P, Hemsel T, Morita T. Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48Na0.52)NBO3 ceramics. <i>Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on</i>. 2014;61(2):225-230. doi:<a href=\"https://doi.org/10.1109/TUFFC.2014.6722608\">10.1109/TUFFC.2014.6722608</a>"},"page":"225-230","intvolume":"        61","year":"2014","issue":"2","quality_controlled":"1","publication_identifier":{"issn":["0885-3010"]},"doi":"10.1109/TUFFC.2014.6722608","title":"Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48Na0.52)NBO3 ceramics","author":[{"full_name":"Isobe, G.","last_name":"Isobe","first_name":"G."},{"first_name":"Takafumi","last_name":"Maeda","full_name":"Maeda, Takafumi"},{"first_name":"Peter","last_name":"Bornmann","full_name":"Bornmann, Peter"},{"first_name":"Tobias","last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias"},{"last_name":"Morita","full_name":"Morita, Takeshi","first_name":"Takeshi"}],"date_created":"2019-05-20T13:10:14Z","volume":61,"date_updated":"2019-09-16T10:53:17Z"},{"issue":"4","quality_controlled":"1","publication_identifier":{"issn":["1948-5719"]},"intvolume":"        57","page":"918-923","citation":{"ieee":"R. Ageba <i>et al.</i>, “Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp. 918–923, 2010.","chicago":"Ageba, Ryo, Yoichi Kadota, Takafumi Maeda, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa, Peter Bornmann, and Tobias Hemsel. “Ultrasonically-Assisted Hydrothermal Method for Ferroelectric Material Synthesis.” <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 918–23. <a href=\"https://doi.org/10.3938/jkps.57.918\">https://doi.org/10.3938/jkps.57.918</a>.","ama":"Ageba R, Kadota Y, Maeda T, et al. Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis. <i>Journal of Korean Physical Society</i>. 2010;57(4):918-923. doi:<a href=\"https://doi.org/10.3938/jkps.57.918\">10.3938/jkps.57.918</a>","bibtex":"@article{Ageba_Kadota_Maeda_Takiguchi_Morita_Ishikawa_Bornmann_Hemsel_2010, title={Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis}, volume={57}, DOI={<a href=\"https://doi.org/10.3938/jkps.57.918\">10.3938/jkps.57.918</a>}, number={4}, journal={Journal of Korean Physical Society}, author={Ageba, Ryo and Kadota, Yoichi and Maeda, Takafumi and Takiguchi, Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Bornmann, Peter and Hemsel, Tobias}, year={2010}, pages={918–923} }","mla":"Ageba, Ryo, et al. “Ultrasonically-Assisted Hydrothermal Method for Ferroelectric Material Synthesis.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, pp. 918–23, doi:<a href=\"https://doi.org/10.3938/jkps.57.918\">10.3938/jkps.57.918</a>.","short":"R. Ageba, Y. Kadota, T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, P. Bornmann, T. Hemsel, Journal of Korean Physical Society 57 (2010) 918–923.","apa":"Ageba, R., Kadota, Y., Maeda, T., Takiguchi, N., Morita, T., Ishikawa, M., … Hemsel, T. (2010). Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 918–923. <a href=\"https://doi.org/10.3938/jkps.57.918\">https://doi.org/10.3938/jkps.57.918</a>"},"year":"2010","volume":57,"date_created":"2019-05-13T09:35:33Z","author":[{"first_name":"Ryo","full_name":"Ageba, Ryo","last_name":"Ageba"},{"last_name":"Kadota","full_name":"Kadota, Yoichi","first_name":"Yoichi"},{"full_name":"Maeda, Takafumi","last_name":"Maeda","first_name":"Takafumi"},{"first_name":"Norihito","last_name":"Takiguchi","full_name":"Takiguchi, Norihito"},{"full_name":"Morita, Takeshi","last_name":"Morita","first_name":"Takeshi"},{"first_name":"Mutsuo","full_name":"Ishikawa, Mutsuo","last_name":"Ishikawa"},{"first_name":"Peter","full_name":"Bornmann, Peter","last_name":"Bornmann"},{"id":"210","full_name":"Hemsel, Tobias","last_name":"Hemsel","first_name":"Tobias"}],"date_updated":"2022-01-06T07:04:19Z","doi":"10.3938/jkps.57.918","title":"Ultrasonically-assisted Hydrothermal Method for Ferroelectric Material Synthesis","publication":"Journal of Korean Physical Society","type":"journal_article","status":"public","abstract":[{"text":"The hydrothermal method enables the production of high-quality piezoelectric materials. In this study, we propose to irradiate the reaction solutions with ultrasonic power during the hydrothermal method to obtain a shorter reaction time and a smooth film surface. A high-pressure reaction container for the ultrasonic transducer was newly developed, and the ultrasonically-assisted hydrothermal method was examined by using this container. The effect of ultrasonic assist on the synthesis of lead-zirconate-titanate (PZT) thin films and (K,Na)NbO$_{3}$ powders was verified. Thicker PZT film, thickness around 10 ${\\mu}$m, could be obtained in one process, and (K,Na)NbO$_{3}$ powder was synthesized in half the previous reaction time.","lang":"eng"}],"department":[{"_id":"151"}],"user_id":"55222","_id":"9743","language":[{"iso":"eng"}],"keyword":["Hydrothermal method","High-power ultrasonic","PZT thin film","Lead-free piezoelectric materials"]},{"language":[{"iso":"eng"}],"keyword":["drives","electromechanical effects","linear motors","ultrasonic motors","car sunroof","car window","electromechanical behavior","high power ultrasonic linear motors","multiple miniaturized motors","positioning tasks","translatory drive","Costs","Electromagnetic forces","Frequency","Laboratories","Manufacturing","Mechatronics","Micromotors","Ultrasonic imaging","Vibrations","Voltage"],"department":[{"_id":"151"}],"user_id":"55222","_id":"9519","status":"public","abstract":[{"text":"Several positioning tasks demand translatory drive instead of rotary motion. To achieve drives that are capable e.g. to drive the sunroof of a car or to lift a car's window, multiple miniaturized motors can be combined. But in this case many other questions arise: the electromechanical behavior of the individual motors differs slightly, the motor characteristics are strongly dependent on the driving parameters and the driven load, many applications need some extra power for special cases like overcoming higher forces periodically. Thus, the bundle of motors has to act well organized and controlled to get an optimized drive that is not oversized and costly.","lang":"eng"}],"publication":"Ultrasonics Symposium, 2004 IEEE","type":"conference","doi":"10.1109/ULTSYM.2004.1417988","title":"A novel approach for high power ultrasonic linear motors","volume":2,"author":[{"last_name":"Hemsel","full_name":"Hemsel, Tobias","id":"210","first_name":"Tobias"},{"first_name":"Maik","full_name":"Mracek, Maik","last_name":"Mracek"},{"first_name":"Jörg","full_name":"Wallaschek, Jörg","last_name":"Wallaschek"},{"first_name":"Piotr","full_name":"Vasiljev, Piotr","last_name":"Vasiljev"}],"date_created":"2019-04-29T08:12:06Z","date_updated":"2022-01-06T07:04:16Z","intvolume":"         2","page":"1161-1164","citation":{"bibtex":"@inproceedings{Hemsel_Mracek_Wallaschek_Vasiljev_2004, title={A novel approach for high power ultrasonic linear motors}, volume={2}, DOI={<a href=\"https://doi.org/10.1109/ULTSYM.2004.1417988\">10.1109/ULTSYM.2004.1417988</a>}, number={Vol.2}, booktitle={Ultrasonics Symposium, 2004 IEEE}, author={Hemsel, Tobias and Mracek, Maik and Wallaschek, Jörg and Vasiljev, Piotr}, year={2004}, pages={1161–1164} }","short":"T. Hemsel, M. Mracek, J. Wallaschek, P. Vasiljev, in: Ultrasonics Symposium, 2004 IEEE, 2004, pp. 1161–1164.","mla":"Hemsel, Tobias, et al. “A Novel Approach for High Power Ultrasonic Linear Motors.” <i>Ultrasonics Symposium, 2004 IEEE</i>, vol. 2, no. Vol.2, 2004, pp. 1161–64, doi:<a href=\"https://doi.org/10.1109/ULTSYM.2004.1417988\">10.1109/ULTSYM.2004.1417988</a>.","apa":"Hemsel, T., Mracek, M., Wallaschek, J., &#38; Vasiljev, P. (2004). A novel approach for high power ultrasonic linear motors. In <i>Ultrasonics Symposium, 2004 IEEE</i> (Vol. 2, pp. 1161–1164). <a href=\"https://doi.org/10.1109/ULTSYM.2004.1417988\">https://doi.org/10.1109/ULTSYM.2004.1417988</a>","ama":"Hemsel T, Mracek M, Wallaschek J, Vasiljev P. A novel approach for high power ultrasonic linear motors. In: <i>Ultrasonics Symposium, 2004 IEEE</i>. Vol 2. ; 2004:1161-1164. doi:<a href=\"https://doi.org/10.1109/ULTSYM.2004.1417988\">10.1109/ULTSYM.2004.1417988</a>","ieee":"T. Hemsel, M. Mracek, J. Wallaschek, and P. Vasiljev, “A novel approach for high power ultrasonic linear motors,” in <i>Ultrasonics Symposium, 2004 IEEE</i>, 2004, vol. 2, no. Vol.2, pp. 1161–1164.","chicago":"Hemsel, Tobias, Maik Mracek, Jörg Wallaschek, and Piotr Vasiljev. “A Novel Approach for High Power Ultrasonic Linear Motors.” In <i>Ultrasonics Symposium, 2004 IEEE</i>, 2:1161–64, 2004. <a href=\"https://doi.org/10.1109/ULTSYM.2004.1417988\">https://doi.org/10.1109/ULTSYM.2004.1417988</a>."},"year":"2004","issue":"Vol.2","quality_controlled":"1","publication_identifier":{"issn":["1051-0117"]}}]