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pro vyhledávání: '"Wunderlich, Wilfried"'
Autor:
Wunderlich, Wilfried
Publikováno v:
Material Science Forum Vol. 1016 (2021) 1642-1646
The need for advanced functional materials is expected to provide a boost in powder metallurgy, where the impurities on powder surfaces is incorporated as at grain boundary segregation. This paper has three aims. First, we analyze whether the reporte
Externí odkaz:
http://arxiv.org/abs/2002.05497
Publikováno v:
In Materials Research Bulletin November 2022 155
Autor:
Hosseini, Sayyed Mahdi, Ghiaci, Mehran, Kulinich, Sergei A., Wunderlich, Wilfried, Monjezi, Bahram Hosseini, Ghorbani, Yousefali, Ghaziaskar, Hassan S., Javaheri Koupaei, Amin
Publikováno v:
In Applied Surface Science 15 March 2020 506
Akademický článek
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NaTaO3-50wt% Fe2O3 composite ceramics showed a large Seebeck voltage of -300 mV at a temperature gradient of 650 K yielding a constant Seebeck coefficient of more than -500 microV/K over a wide temperature range. We report for the first time that SPS
Externí odkaz:
http://arxiv.org/abs/1309.6079
Autor:
Wunderlich, Wilfried, Mukti, Rino R., Winardi, Suminto, Kumar, Krishnankutty-Nair. P., Okubo, Tatsuya
Publikováno v:
Proc. School of Eng. Tokai Univ., Ser. E 34 (2009) pp. 11-16
Nanostructured titania derived from the sol-gel processing requires a detailed study to clarify state-of-art of every process step starting from colloidal sol, peptization, gelation to the final sintering. The applied parameters such as peptization t
Externí odkaz:
http://arxiv.org/abs/0910.5575
Publikováno v:
J. Electronic Materials 40 [2] (2011) 127-133
Seebeck-Voltage measurements of Cobalt-based oxide-composites containing rare-earth elements (RE= Nd, Y, Gd, Ce) were performed under high temperature gradients up to 700 K. Several dependences were measured, Seebeeck voltage as a function of time U_
Externí odkaz:
http://arxiv.org/abs/0909.1618
Publikováno v:
Mater. Res. Soc. Symp. Proc. (2009) Vol. 1128-U01-10 pp.1-6
Half-Heusler phases have gained recently much interest as thermoelectric materials. Screening of possible systems was performed by ab-initio simulation using VASP-software. The energy-versus-Volume (E(V)) curves were calculated and calibrated. For Ti
Externí odkaz:
http://arxiv.org/abs/0901.1491
The effective mass is one of the main factors for enlarging the Seebeck coefficient and electronic conductivity of SrTiO3-based thermoelectric materials [1,2]. The goal of this paper is to clarify, how superlattices can change the effective mass and
Externí odkaz:
http://arxiv.org/abs/0808.1772
Autor:
Wunderlich, Wilfried
Publikováno v:
Solid-State Electronics, 52 (2008) 1082-1087
Phonons change remarkable the interatomic bond length in solids and this work suggest a novel method how this behavior can be displayed and analyzed. The bond-length spectrum is plotted for each of the different atomic bonding types. When comparing t
Externí odkaz:
http://arxiv.org/abs/0711.0567