Ultrathin High-Density Capacitors based on Carbon Nanofibers Fabricated on Silicon, Alumina and Glass Interposer Materials

New applications of carbon-based materials have been continuously developed in recent years. Carbon Nanofibers (CNFs) with silane coatings were added into high density polyethylene (HDPE) to improve the tribological properties of the nanocomposite material for biomedical applications. The nanocomposites were fabricated with various weight percentages of carbon nanofibers (0.5%, 1%, 3%) that were treated with different silane coating thicknesses (2.8nm, 46nm) through melt-mixing and compressive processing. The wear and friction tests were performed on a pin-on-disc tribometer under phosphate buffered saline lubricated condition. Compared with the pure HDPE, the friction coefficients of the nanocomposites were reduced dramatically and their wear resistance properties were also improved. Micro-hardness measurements of the nanocomposites were carried out and CNFs were found to be capable of improving the material’s micro-hardness effectively. The effects of concentration and silane coating thickness of CNFs on the tribological properties of the resulting nanocomposites were analyzed and the wear mechanism of the CNF/HDPE nanocomposites was discussed.

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Formation of loops on the surface of carbon nanofibers synthesized by plasma-enhanced chemical vapor deposition using an inductively coupled plasma reactor

Journal of Materials Research ◽

10.1557/jmr.2006.0330 ◽

2006 ◽

Vol 21 (10) ◽

pp. 2440-2443 ◽

Cited By ~ 5

Author(s):

Shinn-Shyong Tzeng ◽

Pei-Lun Wang ◽

Ting-Yu Wu ◽

Kao-Shao Chen ◽

San-Der Chyou ◽

...

Keyword(s):

Chemical Vapor Deposition ◽

Carbon Nanofibers ◽

Vapor Deposition ◽

Inductively Coupled Plasma ◽

Plasma Reactor ◽

Chemical Vapor ◽

High Density ◽

Inductively Coupled ◽

Thermal Cvd ◽

Density Plasma

Carbon nanofibers (CNFs) were synthesized by both high-density plasma-enhanced chemical vapor deposition (CVD) and thermal CVD. The growth in the former was carried out in an inductively coupled plasma (ICP) reactor. The multilayer loop structure, which was reported to be found on both the inner and outer surfaces of cup-stacked-type CNFs grown using thermal CVD only after heat treatment above 1500 °C, was observed in the as-grown CNFs only on the outer surface using ICP-CVD. The dangling bonds caused by plasma etching and the bonding between edge carbon atoms aided by the high-density plasma are considered the main reasons of the formation of multilayer loops.

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Reliability, solderability and electrical performance of high density ultra thin capacitors based on carbon nanofibers

2021 IEEE 71st Electronic Components and Technology Conference (ECTC) ◽

10.1109/ectc32696.2021.00258 ◽

2021 ◽

Author(s):

Victor Marknas ◽

Rickard Andersson ◽

Maria Bylund ◽

Qi Li ◽

Elisa Passalacqua ◽

...

Keyword(s):

Carbon Nanofibers ◽

High Density ◽

Electrical Performance

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On orientation memory in high density polyethylene – carbon nanofibers composites

e-Polymers ◽

10.1515/epoly-2016-0286 ◽

2017 ◽

Vol 17 (4) ◽

pp. 303-310 ◽

Cited By ~ 6

Author(s):

Mircea Chipara ◽

Brian Jones ◽

Dorina M. Chipara ◽

Jianhua Li ◽

Karen Lozano ◽

...

Keyword(s):

Melting Temperature ◽

Carbon Nanofibers ◽

Crystalline Phase ◽

High Density Polyethylene ◽

Room Temperature ◽

Uniaxial Stress ◽

High Density ◽

Two Dimensional ◽

Uniaxial Stretching ◽

X Ray

AbstractAn orientation memory effect in high density polyethylene (HDPE) filled with vapor grown carbon nanofibers (VGCNF) is reported. Two-dimensional X-ray (2DXR) confirmed the reorientation of HDPE crystallites upon the uniaxial stretching of HDPE and HDPE filled by VGCNFs. This anisotropy of 2DXR spectra was decreased by heating all stretched samples (loaded or not loaded by VGCNFs) from room to the melting temperature of HDPE. Upon cooling these samples to room temperature, it was noticed that only the nanocomposite retained a weak partial (uniaxial) order, while HDPE showed a completely isotropic 2DXR spectrum. It was concluded that during the stretching of nanocomposites the crystallites and VGCNFs were aligned along the uniaxial stress. Upon heating, the crystalline phase was melted, while the orientation of the VGCNFs was not significantly disturbed. The recrystallization of the polymer started preferentially from the VGCNF – polymer interphase, resulting into an anisotropic crystalline structure.

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