Carbon Layer Formation on Bamboo Flooring by CO2 Laser.

Kaori NAGAI; Kenji SUGIMOTO

doi:10.2184/lsj.31.63

Carbon layer formation on the Pt (111) surface as a function of temperature

Journal of Vacuum Science and Technology ◽

10.1116/1.569472 ◽

1978 ◽

Vol 15 (2) ◽

pp. 559-562 ◽

Cited By ~ 28

Author(s):

J. C. Hamilton ◽

J. M. Blakely

Keyword(s):

Carbon Layer ◽

Layer Formation

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Carbon-layer formation at silicon-carbide—glass interfaces

Materials Science and Engineering A ◽

10.1016/0921-5093(90)90029-3 ◽

1993 ◽

Vol 162 (1-2) ◽

pp. 45-52 ◽

Cited By ~ 10

Author(s):

G. Qi ◽

K.E. Spear ◽

C.G. Pantano

Keyword(s):

Silicon Carbide ◽

Carbon Layer ◽

Layer Formation

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Diamond-like carbon layer formation on graphite by excimer laser irradiation

Applied Physics A ◽

10.1007/s003390050729 ◽

1998 ◽

Vol 66 (6) ◽

pp. 659-661 ◽

Cited By ~ 11

Author(s):

Á. Mechler ◽

P. Heszler ◽

Z. Kántor ◽

T. Szörényi ◽

Z. Bor

Keyword(s):

Laser Irradiation ◽

Excimer Laser ◽

Carbon Layer ◽

Diamond Like Carbon ◽

Layer Formation ◽

Excimer Laser Irradiation

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mechanics approach, similar values for the fracture energy are calculated; although the failure of the film under the indenter tip suggests a possible embrittlement of the ductile Al film in the presence of contaminants. The evidence of fracture within the carbon layer supports similar trends reported in whisker pull-out tests in which a carbon layer formation has been reported to decrease the fracture resistance [36]. Weak bonding has been reported for a range of interfacial carbon layer thicknesses. Brennan [37, 38] has cited an extensive fiber pull-out occurring in composites with a 10-40 nm layer of carbon present, attributed to debonding within the carbon layers. The effect on shear strength was recently reported by Dehm et al. [39] in which a decrease in the adhesion of copper to sapphire was observed by incorporating up to 110 nm thick carbon layers. Our current investigation shows that the debonding within a carbon layer occurs in much thinner layers than previously reported. The presence of a carbide suggests that

Adhesion Aspects of Thin Films, Volume 1 ◽

10.1201/b11971-27 ◽

2014 ◽

pp. 176-183

Keyword(s):

Shear Strength ◽

Fracture Energy ◽

Fracture Resistance ◽

Carbon Layer ◽

Current Investigation ◽

Layer Formation ◽

Pull Out ◽

Interfacial Carbon

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Electron spectroscopy of the interface carbon layer formation on the cleavage surfaces of the layered semiconductor In4Se3 crystals

Journal of Electron Spectroscopy and Related Phenomena ◽

10.1016/j.elspec.2004.10.005 ◽

2005 ◽

Vol 142 (2) ◽

pp. 121-128 ◽

Cited By ~ 2

Author(s):

P.V. Galiy ◽

A.V. Musyanovych ◽

T.M. Nenchuk

Keyword(s):

Electron Spectroscopy ◽

Carbon Layer ◽

Layer Formation ◽

Layered Semiconductor

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TEM characterization of reaction zone in a SiC fiber-reinforced titanium alloy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100105758 ◽

1988 ◽

Vol 46 ◽

pp. 738-739

Author(s):

G. Das ◽

R. E. Omlor

Keyword(s):

Titanium Alloys ◽

Reaction Zone ◽

Carbon Layer ◽

Fiber Reinforced ◽

Reaction Products ◽

Sic Fibers ◽

Sic Fiber ◽

The Matrix ◽

Immense Potential

Fiber reinforced titanium alloys hold immense potential for applications in the aerospace industry. However, chemical reaction between the fibers and the titanium alloys at fabrication temperatures leads to the formation of brittle reaction products which limits their development. In the present study, coated SiC fibers have been used to evaluate the effects of surface coating on the reaction zone in the SiC/IMI829 system.IMI829 (Ti-5.5A1-3.5Sn-3.0Zr-0.3Mo-1Nb-0.3Si), a near alpha alloy, in the form of PREP powder (-35 mesh), was used a茸 the matrix. CVD grown AVCO SCS-6 SiC fibers were used as discontinuous reinforcements. These fibers of 142μm diameter contained an overlayer with high Si/C ratio on top of an amorphous carbon layer, the thickness of the coating being ∽ 1μm. SCS-6 fibers, broken into ∽ 2mm lengths, were mixed with IMI829 powder (representing < 0.1vol%) and the mixture was consolidated by HIP'ing at 871°C/0. 28GPa/4h.

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Problems with oxygen analysis in the system MgO-Al2O3-SiO2 with the electron microprobe

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100132753 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1624-1625

Author(s):

Michel Fialin ◽

Guy Rémond

Keyword(s):

Transition Metal ◽

Metal Oxides ◽

Transition Metal Oxides ◽

Electrostatic Charge ◽

Carbon Layer ◽

Sample Holder ◽

Rock Matrix ◽

Electrical Discharges ◽

Thin Carbon ◽

Beam Instabilities

Oxygen-bearing minerals are generally strong insulators (e.g. silicates), or if not (e.g. transition metal oxides), they are included within a rock matrix which electrically isolates them from the sample holder contacts. In this respect, a thin carbon layer (150 Å in our laboratory) is evaporated on the sections in order to restore the conductivity. For silicates, overestimated oxygen concentrations are usually noted when transition metal oxides are used as standards. These trends corroborate the results of Bastin and Heijligers on MgO, Al2O3 and SiO2. According to our experiments, these errors are independent of the accelerating voltage used (fig.l).Owing to the low density of preexisting defects within the Al2O3 single-crystal, no significant charge buildup occurs under irradiation at low accelerating voltage (< 10keV). As a consequence, neither beam instabilities, due to electrical discharges within the excited volume, nor losses of energy for beam electrons before striking the sample, due to the presence of the electrostatic charge-induced potential, are noted : measurements from both coated and uncoated samples give comparable results which demonstrates that the carbon coating is not the cause of the observed errors.

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Angular Calibration of Ribosomal Subuntts in Factor Space

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100181063 ◽

1990 ◽

Vol 48 (1) ◽

pp. 462-463

Author(s):

Minakhi Pujari ◽

Joachim Frank

Keyword(s):

Three Dimensional ◽

Carbon Layer ◽

Uranyl Acetate ◽

Particle Analysis ◽

Factor Space ◽

Multivariate Statistical ◽

Ribosomal Subunits ◽

Layer Method ◽

Dimensional Reconstruction ◽

Number Of Particles

In single-particle analysis of macromolecule images with the electron microscope, variations of projections are often observed that can be attributed to the changes of the particle’s orientation on the specimen grid (“rocking”). In the multivariate statistical analysis (MSA) of such projections, a single factor is often found that expresses a large portion of these variations. Successful angle calibration of this “rocking factor” would mean that correct angles can be assigned to a large number of particles, thus facilitating three-dimensional reconstruction.In a study to explore angle calibration in factor space, we used 40S ribosomal subunits, which are known to rock around an axis approximately coincident with their long axis. We analyzed micrographs of a field of these particles, taken with 20° tilt and without tilt, using the standard methods of alignment and MSA. The specimen was prepared with the double carbon-layer method, using uranyl acetate for negative staining. In the MSA analysis, the untilted-particle projections were used as active, the tilted-particle projections as inactive objects. Upon tilting, those particles whose rocking axes are parallel to the tilt axis will change their appearance in the same way as under the influence of rocking. Therefore, each vector, in factor space, joining a tilted and untilted projection of the same particle can be regarded as a local 20-degree calibration bar.

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