Fractal Carbon-MEMS Electrodes: Theory and Preliminary Fabrication

2019 ◽  
Vol 4 (1) ◽  
pp. 83-92 ◽  
Author(s):  
Benjamin Y. Park ◽  
Rabih Zaouk ◽  
Chunlei Wang ◽  
Jim Zoval ◽  
Marc J. J. Madou
Keyword(s):  
Carbon Mems ◽  
Fractal Carbon

Fractal Carbon-MEMS Architectures for 3D Miniature Power and Sensor Applications

2019 ◽  
Vol 1 (20) ◽  
pp. 1-11 ◽  
Author(s):  
Marc J. Madou ◽  
Rabih Zaouk ◽  
Chunlei Wang ◽  
B. Y. Park
Keyword(s):  
Sensor Applications ◽  
Carbon Mems ◽  
Fractal Carbon

Climate politics, metaphors and the fractal carbon trap

2019 ◽  
Vol 9 (12) ◽  
pp. 919-925 ◽  
Author(s):  
Steven Bernstein ◽  
Matthew Hoffmann
Keyword(s):  
Climate Politics ◽  
Fractal Carbon

Structure, internal friction, and Young’s modulus of fractal carbon deposits

1998 ◽  
Vol 40 (3) ◽  
pp. 539-541 ◽  
Author(s):  
I. V. Zolotukhin ◽  
Yu. V. Sokolov ◽  
V. P. Ievlev
Keyword(s):  
Internal Friction ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Carbon Deposits ◽  
Fractal Carbon

Fabrication and Characterization of Glassy Carbon MEMS

1997 ◽  
Vol 9 (6) ◽  
pp. 1399-1406 ◽  
Author(s):  
Olivier J. A. Schueller ◽  
Scott T. Brittain ◽  
Christian Marzolin ◽  
G. M. Whitesides
Keyword(s):  
Glassy Carbon ◽  
Carbon Mems ◽  
Fabrication And Characterization

Diffusion-Free Mediator Based Miniature Biofuel Cell Anode Fabricated on a Carbon-MEMS Electrode

Langmuir ◽  
2012 ◽  
Vol 28 (39) ◽  
pp. 14055-14064 ◽  
Author(s):  
Gobind S. Bisht ◽  
Sunny Holmberg ◽  
Lawrence Kulinsky ◽  
Marc Madou
Keyword(s):  
Biofuel Cell ◽  
Carbon Mems ◽  
Cell Anode

scholarly journals Distinct Roles of Tensile and Compressive Stresses in Graphitizing and Properties of Carbon Nanofibers

Micromachines ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1096
Author(s):  
Yujia Liu ◽  
Edmund Lau ◽  
Dario Mager ◽  
Marc J. Madou ◽  
Maziar Ghazinejad
Keyword(s):  
Electron Microscopy ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Compressive Stress ◽  
Pyrolytic Carbon ◽  
Building Blocks ◽  
Mechanical Stresses ◽  
Mems Devices ◽  
Carbon Mems ◽  
Treated Carbon

It is generally accepted that inducing molecular alignment in a polymer precursor via mechanical stresses influences its graphitization during pyrolysis. However, our understanding of how variations of the imposed mechanics can influence pyrolytic carbon microstructure and functionality is inadequate. Developing such insight is consequential for different aspects of carbon MEMS manufacturing and applicability, as pyrolytic carbons are the main building blocks of MEMS devices. Herein, we study the outcomes of contrasting routes of stress-induced graphitization by providing a comparative analysis of the effects of compressive stress versus standard tensile treatment of PAN-based carbon precursors. The results of different materials characterizations (including scanning electron microscopy, Raman and X-ray photoelectron spectroscopies, as well as high-resolution transmission electron microscopy) reveal that while subjecting precursor molecules to both types of mechanical stresses will induce graphitization in the resulting pyrolytic carbon, this effect is more pronounced in the case of compressive stress. We also evaluated the mechanical behavior of three carbon types, namely compression-induced (CIPC), tension-induced (TIPC), and untreated pyrolytic carbon (PC) by Dynamic Mechanical Analysis (DMA) of carbon samples in their as-synthesized mat format. Using DMA, the elastic modulus, ultimate tensile strength, and ductility of CIPC and TIPC films are determined and compared with untreated pyrolytic carbon. Both stress-induced carbons exhibit enhanced stiffness and strength properties over untreated carbons. The compression-induced films reveal remarkably larger mechanical enhancement with the elastic modulus 26 times higher and tensile strength 2.85 times higher for CIPC compared to untreated pyrolytic carbon. However, these improvements come at the expense of lowered ductility for compression-treated carbon, while tension-treated carbon does not show any loss of ductility. The results provided by this report point to the ways that the carbon MEMS industry can improve and revise the current standard strategies for manufacturing and implementing carbon-based micro-devices.

Carbon MEMS

2016 ◽  
pp. 455-461 ◽  
Author(s):  
Rodrigo Martinez-Duarte ◽  
Monsur Islam ◽  
Rucha Natu
Keyword(s):  
Carbon Mems
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