Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Christoph Bechtold"'
Publikováno v:
Journal of Materials Engineering and Performance. 29:1892-1900
This paper investigates the fatigue performance of Nitinol thin-film devices used in medical applications. Freestanding films are fabricated and structured by microsystem technology processes (magnetron sputtering, UV lithography and wet chemical etc
Autor:
Eckhard Quandt, Rodrigo Lima de Miranda, Christiane Zamponi, Christoph Chluba, Christoph Bechtold
Publikováno v:
Shape Memory and Superelasticity. 5:327-335
Thin film shape memory actuators fabricated by micro-system technology processes are of particular interest in micro-actuator applications due to their high work output, large displacements, and a comparably easy and compact system setup. Micro-syste
Autor:
Christoph Chluba, Christoph Bechtold, Eckhard Quandt, Christiane Zamponi, Rodrigo Lima de Miranda
Publikováno v:
Shape Memory and Superelasticity. 2:391-398
Nitinol is the material of choice for many medical applications, in particular for minimally invasive implants due to its superelasticity and biocompatibility. However, NiTi has limited radiopacity which complicates positioning in the body. A common
Autor:
Katharina Siemsen, Eckhard Quandt, R. Lima de Miranda, Christine Selhuber-Unkel, Christiane Zamponi, Christoph Chluba, Christoph Bechtold
Publikováno v:
Biosensorsbioelectronics. 153
State of the art minimally invasive treatments and diagnostics of neurological and cardiovascular diseases demand for flexible instruments and implants that enable sensing and stimulation of bioelectric signals. Besides medical applications, implanta
Autor:
Thomas Hauet, Pascal Boulet, A. Kyianytsia, R. Lima de Miranda, B. Kierren, Ibrahim Cinar, A. Letoffe, Sylvie Migot, Ozhan Ozatay, Christoph Bechtold, M. Ponçot, Jaafar Ghanbaja
Publikováno v:
Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2019, 115 (22), pp.222402. ⟨10.1063/1.5129893⟩
Applied Physics Letters, American Institute of Physics, 2019, 115 (22), pp.222402. ⟨10.1063/1.5129893⟩
Strain modulation during a two-way shape memory effect (TWSME) in a sputtered nitinol NiTi is used to reliably induce and switch by 90° a uniaxial magnetic anisotropy of a 20 nm thick Ni film during the thermal cycle from 300 K to 400 K. NiTi strain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f29cd1fa4dc8f286955ba699a5cf5ef
https://hal.archives-ouvertes.fr/hal-02444214
https://hal.archives-ouvertes.fr/hal-02444214
Publikováno v:
Shape Memory and Superelasticity. 1:286-293
Today, most NiTi devices are manufactured by a combination of conventional metal fabrication steps, e.g., melting, extrusion, cold working, etc., and are subsequently structured by high accuracy laser cutting. This combination has been proven to be v
Publikováno v:
Biomedical microdevices. 18(6)
Self-expandable medical devices provide mechanical functionality at a specific location of the human body and are viable for minimal invasive procedures. Besides radiopaque markers and drug-eluting coatings, next generation self-expandable devices ca
Autor:
Wenwei Ge, Eckhard Quandt, Torben Dankwort, Lorenz Kienle, Christoph Chluba, Christoph Bechtold, Manfred Wuttig, R. Lima de Miranda
The positive influence of crystallographic compatibility on the thermal transformation stability has been already investigated extensively in the literature. However, its influence on the stability of the shape memory effect or superelasticity used i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa0a2782ef7d7be794074a6d32d3bf76
https://europepmc.org/articles/PMC4938070/
https://europepmc.org/articles/PMC4938070/
Autor:
Franz Faupel, Eckhard Quandt, Christoph Bechtold, Amit Kulkarni, Thomas Strunskus, Bodo Henkel, Vladimir Zaporojtchenko
Publikováno v:
Sensors and Actuators A: Physical. 183:28-33
Hybrid materials offer the unique possibility to combine different functionalities of each component to obtain new classes of actuators or sensors. The hybrid material presented here consists of a macroscopic Terfenol-D crystal and a functional nanoc
Publikováno v:
Advanced Engineering Materials. 14:716-723
Magnetic shape memory (MSM) thin films have been investigated for their use as actuators and sensors in micro-electro-mechanical systems (MEMS). Here, we report on the fabrication of polycrystalline Fe7Pd3 thin films by magnetron sputtering. Two-dime