Negligible Temperature Dependence of Nitrogen Solubility in Molten Silicon–Chromium Alloys at Middle Composition Range

2021 ◽  
Author(s):  
Sakiko Kawanishi ◽  
Shogo Hachinoda ◽  
Hiroyuki Shibata
Keyword(s):  
Temperature Dependence ◽  
Composition Range ◽  
Nitrogen Solubility ◽  
Molten Silicon ◽  
Chromium Alloys

scholarly journals Viskosität des flüssigen Systems Chlorbenzol + Brombenzol

1975 ◽  
Vol 30 (6-7) ◽  
pp. 916-917 ◽  
Author(s):  
R. Haase ◽  
M. Lethen ◽  
K.-H. Dücker
Keyword(s):  
Temperature Dependence ◽  
Molar Volume ◽  
Composition Range ◽  
Ideal Liquid ◽  
Liquid System ◽  
The Ideal

Abstract Results of measurements of the viscosity and of the molar volume for the ideal liquid system chlorobenzene + bromo-benzene are presented. They cover the whole composition range between 0 °C and 80 °C. Both the composition and the temperature dependence of the viscosity are discussed.

Temperature Dependence of the Viscosity of Molten Silicon Measured by the Oscillating Cup Method

1995 ◽  
Vol 34 (Part 1, No. 7A) ◽  
pp. 3432-3436 ◽  
Author(s):  
Hitoshi Sasaki ◽  
Eiji Tokizaki ◽  
Xin Ming Huang ◽  
Kazutaka Terashima ◽  
Shigeyuki Kimura
Keyword(s):  
Temperature Dependence ◽  
Molten Silicon ◽  
Oscillating Cup

Temperature Dependence of the Electrical Resistivity of Molten Silicon

1995 ◽  
Vol 34 (Part 1, No. 7A) ◽  
pp. 3426-3431 ◽  
Author(s):  
Hitoshi Sasaki ◽  
Atsushi Ikari ◽  
Kazutaka Terashima ◽  
Shigeyuki Kimura
Keyword(s):  
Electrical Resistivity ◽  
Temperature Dependence ◽  
Molten Silicon

Enhanced piezoelectricity in broad composition range and the temperature dependence research of (Ba1−xCax)(Ti0.95Sn0.05)O3 piezoceramics

2014 ◽  
Vol 433 ◽  
pp. 43-47 ◽  
Author(s):  
Mingli Chen ◽  
Zhijun Xu ◽  
Ruiqing Chu ◽  
Hong Qiu ◽  
Min Li ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Composition Range

Temperature Dependence of the Critical Electron Dose for Fatty Acid Monolayers

1982 ◽  
Vol 40 ◽  
pp. 78-79
Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser
Keyword(s):  
Electron Beam ◽  
Fatty Acid ◽  
Inelastic Scattering ◽  
Temperature Dependence ◽  
Structural Damage ◽  
Direct Result ◽  
Second Step ◽  
Strong Temperature Dependence ◽  
Electron Dose ◽  
Covalent Bonds

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.

Temperature Dependence of Magnetic Domains and Wall Structures

1972 ◽  
Vol 30 ◽  
pp. 496-497
Author(s):  
Sonoko Tsukahara ◽  
Tadami Taoka ◽  
Hisao Nishizawa
Keyword(s):  
Temperature Dependence ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Iron Film ◽  
Objective Lens ◽  
Lorentz Microscopy ◽  
Domain Structures ◽  
Wall Structures ◽  
Crystal Films ◽  
Metallurgical Structure

The high voltage Lorentz microscopy was successfully used to observe changes with temperature; of domain structures and metallurgical structures in an iron film set on the hot stage combined with a goniometer. The microscope used was the JEM-1000 EM which was operated with the objective lens current cut off to eliminate the magnetic field in the specimen position. Single crystal films with an (001) plane were prepared by the epitaxial growth of evaporated iron on a cleaved (001) plane of a rocksalt substrate. They had a uniform thickness from 1000 to 7000 Å.The figure shows the temperature dependence of magnetic domain structure with its corresponding deflection pattern and metallurgical structure observed in a 4500 Å iron film. In general, with increase of temperature, the straight domain walls decrease in their width (at 400°C), curve in an iregular shape (600°C) and then vanish (790°C). The ripple structures with cross-tie walls are observed below the Curie temperature.

A TEM investigation of silicon nitride whiskers

1987 ◽  
Vol 45 ◽  
pp. 160-161
Author(s):  
Tapan Roy
Keyword(s):  
Silicon Nitride ◽  
High Resolution ◽  
Ceramic Matrix Composites ◽  
High Resolution Electron Microscopy ◽  
Molten Silicon ◽  
Matrix Composites ◽  
Ceramic Fibers ◽  
Resolution Electron ◽  
Point To Point ◽  
Technological University

Ceramic fibers are being used to improve the mechanical properties of metal matrix and ceramic matrix composites. This paper reports a study of the structural and other microstructural characteristics of silicon nitride whiskers using both conventional TEM and high resolution electron microscopy.The whiskers were grown by T. E. Scott of Michigan Technological University, by passing nitrogen over molten silicon in the presence of a catalyst. The whiskers were ultrasonically dispersed in chloroform and picked up on holey carbon grids. The diameter of some whiskers (<70nm) was small enough to allow direct observation without thinning. Conventional TEM was performed on a Philips EM400T while high resolution imaging was done on a JEOL 200CX microscope with a point to point resolution of 0.23nm.

HREM observation of NiO growth on submicron spheres of pure nickel

1989 ◽  
Vol 47 ◽  
pp. 548-549
Author(s):  
C.M. Teng ◽  
T.F. Kelly ◽  
J.P. Zhang ◽  
H.M. Lin ◽  
Y.W. Kim
Keyword(s):  
Nickel Oxide ◽  
Grain Boundaries ◽  
Pure Nickel ◽  
Submicron Particles ◽  
Crystal Formation ◽  
Nickel Wire ◽  
Liquid Droplets ◽  
Oxide Interface ◽  
Nickel Chromium ◽  
Chromium Alloys

Spherical submicron particles of materials produced by electrohydrodynamic (EHD) atomization have been used to study a variety of materials processes including nucleation of alternative crystallization phases in iron-nickel and nickel-chromium alloys, amorphous solidification in submicron droplets of pure metals, and quasi-crystal formation in nickel-chromium alloys. Some experiments on pure nickel, nickel oxide single crystals, the nickel/nickel(II) oxide interface, and grain boundaries in nickel monoxide have been performed by STEM. For these latter studies, HREM is the most direct approach to obtain particle crystal structures at the atomic level. Grain boundaries in nickel oxide have also been investigated by HREM. In this paper, we present preliminary results of HREM observations of NiO growth on submicron spheres of pure nickel.Small particles of pure nickel were prepared by EHD atomization. For the study of pure nickel, 0.5 mm diameter pure nickel wire (99.9975%) is sprayed directly in the EHD process. The liquid droplets solidify in free-flight through a vacuum chamber operated at about 10-7 torr.

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