Topic
Micrography
About: Micrography is a research topic. Over the lifetime, 156 publications have been published within this topic receiving 1562 citations. The topic is also known as: microcalligraphy.
Papers published on a yearly basis
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Papers
TL;DR: In this article, aluminum has been cold sprayed onto similar substrate using 100 vol.% He and mixture of He-20 vol.%.% N2 as carrier gases, and optical micrography, stereological analysis, scanning electron microscopy, and microhardness depth profiles were performed through optical microscopy.
Abstract: Aluminum has been cold sprayed onto similar substrate using 100 vol.% He and mixture of He-20 vol.% N2 as carrier gases. Analysis and characterization of sprayed depositions under different processing conditions was performed through optical micrography, stereological analysis, scanning electron microscopy, and microhardness depth profiles. Potentiodynamic polarization curves and Tafel extrapolation experiments were carried at 0.9 pH value using sulfuric acid (H2SO4) as an electrolyte. Helium processing condition displayed more compact structure and higher hardness for the coating when compared to He-20 vol.% N2 processing. Electrochemical studies depicted better corrosion resistance of the He-20 vol.% N2-processed coatings when compared to coatings processed with helium alone. D 2004 Elsevier B.V. All rights reserved.
131 citations
TL;DR: The enthalpies of formation and fusion as well as the heat capacity of Mg 2 Si were measured by DTA and optical micrography as discussed by the authors, and the results of these experiments, together with literature data, were used to redetermine a complete set of analytical descriptions of the Gibbs energies of all stable phases of the Al-Mg-Si system.
122 citations
TL;DR: A new procedure is described for the electron microscopy of small objects that involves the oblique evaporation of a thin film of metal over the preparation before micrography, which produces new information about the heights and shapes of objects seen in the preparation.
Abstract: SummaryA new procedure is described for the electron microscopy of small objects. This technique, illustrated by photographs of purified influenza and tobacco mosaic viruses, involves the oblique evaporation of a thin film of metal over the preparation before micrography. The three-dimensional effect it produces gives new information about the heights and shapes of objects seen in the preparation.
80 citations
TL;DR: The d-spacing distribution in a number of carbon blacks was accurately measured by means of an internal calibration standard as discussed by the authors, and the distribution appears to be random, following a log-normal pattern for all blacks, except for thermal blacks, which are concentrically arranged around the particle nucleus.
77 citations
TL;DR: Two improvements are described in the use of shadow electron micrography for the observation of particles of macromolecular dimensions that involve the substitution of gold for chromium as shadowing metal and metal-shadowing small particles deposited on a very smooth surface such as that of polished glass.
Abstract: Two improvements are described in the use of shadow electron micrography for the observation of particles of macromolecular dimensions. One involves the substitution of gold for chromium as shadowing metal. The thinner gold film that can be employed gives a truer representation of the shape of particles so small that shape and size are significantly altered by the thickness of the shadowing metal deposited on them. The other consists in metal-shadowing small particles deposited on a very smooth surface such as that of polished glass and the handling of this metal film as a replica of the glass surface and the particles resting on it. This technique permits the photography of particles whose direct observation is disturbed by the fine structure that is brought out by shadowing a collodion substrate. Application of these methods to the electron micrography of the tobacco mosaic virus protein shows that its fibrils are rods about 125A both in height and breadth. Though the rods appear segmented, these segments have not been found to have a length that is constant or a small integral multiple of an underlying unit.
68 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 1 |
| 2024 | 3 |
| 2023 | 5 |
| 2022 | 13 |
| 2020 | 2 |
| 2019 | 2 |