scholarly journals Chemical composition analysis of various kaolin group minerals by analytical transmission electron microscope.

1990 ◽  
Vol 19 ◽  
pp. 135-142
Author(s):  
Kiyoshi Okada ◽  
Nozomu Otsuka
Keyword(s):  
Electron Microscope ◽  
Chemical Composition ◽  
Transmission Electron Microscope ◽  
Composition Analysis ◽  
Transmission Electron ◽  
Chemical Composition Analysis

Causes and Removal of Daemonorops margaritae Cane’s Discoloration

2013 ◽  
Vol 634-638 ◽  
pp. 909-912
Author(s):  
Wen Hua Lv ◽  
Ze Hui Jiang ◽  
Xing E Liu ◽  
Jun Liang Liu
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Microscope ◽  
Chemical Composition ◽  
Composition Analysis ◽  
Electron Microscope Observation ◽  
Bleaching Agent ◽  
Aging Study ◽  
Chemical Composition Analysis ◽  
Xenon Light ◽  
Scanning Electron

Through chemical composition analysis, scanning electron microscope observation, stain-fungi isolation from stained canes and their inoculation on unstained canes, as well as xenon light aging study, causes of Daemonorops margaritae cane’s discoloration were investigated. Results show that the yellow discoloration is mainly chemical photo-induced and the blue, brown and red stains are mainly resulted from the stain-fungi’s mycelia colors or secreted pigments. A treatment with hydrogen peroxide solution as main bleaching agent was explored. All the above discoloration could be effectively removed and renewed to be attractive lustrous yellowish.

Precipitation Processes in HR6W Alloy after Long-Term Ageing

2016 ◽  
Vol 246 ◽  
pp. 33-38 ◽  
Author(s):  
Przemysław Jamrozik ◽  
Maria Sozańska
Keyword(s):  
Heat Treatment ◽  
Electron Microscope ◽  
Elevated Temperature ◽  
Annealing Process ◽  
Composition Analysis ◽  
Structural Studies ◽  
Microstructure Stability ◽  
Transmission Electron ◽  
Chemical Composition Analysis

Heat resistance and microstructure stability at elevated temperature in HR6W alloy is the result of strong appreciation of the solution by adding tungsten and strengthening precipitation. Structural studies were made after the annealing process at a temperature of 750°C. The heat treatment was carried out for up to 5000 hours. Microstructure stability of HR6W alloy was evaluated by the action of elevated temperature. Identification of precipitates produced using the method of selective electron diffraction (SAED) and chemical composition analysis using a transmission electron microscope by technique STEM.

Eels of Gases in the Electron Microscope

1982 ◽  
Vol 40 ◽  
pp. 650-651
Author(s):  
R.P. Burgner ◽  
O.L. Krivanek ◽  
P.R. Swann
Keyword(s):  
Electron Microscope ◽  
Chemical Composition ◽  
Energy Loss ◽  
Transmission Electron Microscope ◽  
Electron Energy Loss Spectroscopy ◽  
Gas Phases ◽  
Transmission Electron ◽  
Gas Tight ◽  
Electron Energy Loss

Interest in the role of microstructure in chemical reactions (particularly in catalysis) has stimulated the development of environmental cells (E-cells) for the transmission electron microscope. A knowledge of the local changes in chemical composition that occur during these reactions is useful but difficult to obtain by conventional energy-dispersive Xray techniques because of the physical requirements for a gas-tight cell. By contrast, electron energy loss spectroscopy (EELS) presents no additional instrumentation difficulties and may be used to monitor low and high-Z chemical changes in both solid and gas phases throughout the chemical reaction.

scholarly journals Production of sinters from commercial powder mixtures for a matrix of diamond impregnated tools

Mechanik ◽  
2017 ◽  
Vol 90 (1) ◽  
pp. 54-55
Author(s):  
Joanna Borowiecka-Jamrozek ◽  
Jan Lachowski
Keyword(s):  
Mechanical Properties ◽  
Electron Microscope ◽  
Chemical Composition ◽  
Composition Analysis ◽  
Powder Mixtures ◽  
Chemical Composition Analysis ◽  
Iron Based ◽  
Commercial Iron ◽  
Size Powder ◽  
Scanning Electron

The paper presents the results of analyzing mechanical properties of the sinters obtained from the commercial iron-based powder mixtures. Parameters mechanic, plastic and density, hardness and porosity of the sinters were determined. The sinters microstructure and the chemical composition analysis were carried out by using the scanning electron microscope. The results were compared with the properties of the sinters obtained from the cobalt SMS (submicron size) powder.

A Reproducible Selective Stain for Cardiac Sarcoplasmic Reticulum

1974 ◽  
Vol 32 ◽  
pp. 214-215
Author(s):  
R. A. Waugh ◽  
J. R. Sommer
Keyword(s):  
Complex System ◽  
Electron Microscope ◽  
Sarcoplasmic Reticulum ◽  
Transmission Electron Microscope ◽  
Electron Microscopic ◽  
Cardiac Sarcoplasmic Reticulum ◽  
Transmission Electron

Cardiac sarcoplasmic reticulum (SR) is a complex system of intracellular tubules that, due to their small size and juxtaposition to such electron-dense structures as mitochondria and myofibrils, are often inconspicuous in conventionally prepared electron microscopic material. This study reports a method with which the SR is selectively “stained” which facilitates visualizationwith the transmission electron microscope.

Surface Structure of the Spores of Glugea Weissenbergi

1969 ◽  
Vol 27 ◽  
pp. 238-239
Author(s):  
Sanford H. Vernick ◽  
Anastasios Tousimis ◽  
Victor Sprague
Keyword(s):  
Electron Microscope ◽  
Surface Structure ◽  
Transmission Electron Microscope ◽  
Mature Spore ◽  
Spore Surface ◽  
Sectioned Material ◽  
Transmission Electron ◽  
Surface Detail

Recent electron microscope studies have greatly expanded our knowledge of the structure of the Microsporida, particularly of the developing and mature spore. Since these studies involved mainly sectioned material, they have revealed much internal detail of the spores but relatively little surface detail. This report concerns observations on the spore surface by means of the transmission electron microscope.

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