The influence of temperature on the production of chromosome aberrations by fractional x-ray doses in the microspores ofTradesgantia Bragteata

1955 ◽  
Vol 53 (1) ◽  
pp. 29-40 ◽  
Author(s):  
K. C. Bora
Keyword(s):  
Chromosome Aberrations ◽  
Influence Of Temperature ◽  
X Ray ◽  
Influence Of Temperature On

scholarly journals Microstructure and Tribological Properties of Self-Lubricating FeS Coating Prepared by Chemical Bath Deposition Coating Technique

2019 ◽  
Vol 9 (20) ◽  
pp. 4422 ◽  
Author(s):  
Jianjun Hu ◽  
Chuan He ◽  
Xian Yang ◽  
Hui Li ◽  
Hongbin Xu ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Chemical Bath Deposition ◽  
Tribological Properties ◽  
Energy Dispersive Spectrometry ◽  
X Ray Diffraction ◽  
Influence Of Temperature ◽  
X Ray ◽  
Coating Technique ◽  
Influence Of Temperature On ◽  
Scanning Electron

The FeS solid lubricating coatings were prepared on the AISI 5140 steel by chemical bath deposition (CBD) coating technique at various temperatures from 30 to 90 °C. The influence of temperature on microstructure, microcracks, and tribological properties was characterized and studied by X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive spectrometry (EDS). The results show that the coating mainly consists of FexSy (FeS, FeS2, and Fe1−xS), and has a chrysanthemum-shaped (CS) morphology composed of the FeS crystal petals. The CS particles nucleate at about 30 °C, rapidly grow and reach a peak thickness at about 50–70 °C, and finally disappear and are replaced by disordered thick petals at 90 °C. The wear resistance of the steel was improved obviously after introducing of FeS coatings, owing to that the coatings can provide better lubrication and improve the wear resistance.

Study of the Influence of Temperature on the Optical and Structural Properties of Dolomite

2020 ◽  
Vol 74 (10) ◽  
pp. 1280-1286
Author(s):  
Lucas Train Loureço ◽  
Celso de Araujo Duarte ◽  
Dietmar William Foryta ◽  
Bruno Guimarães Titon ◽  
Eleonora Maria Gouvêa Vasconcellos
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Thermal Treatment ◽  
X Ray Diffraction ◽  
Electron Dispersive Spectroscopy ◽  
Influence Of Temperature ◽  
X Ray ◽  
Different Temperatures ◽  
Influence Of Temperature On ◽  
Scanning Electron

The present work reports the results of structural and optical investigations in samples of natural dolomite, subjected to thermal treatment at different temperatures (500 ℃ to 700 ℃) and times (one up to three hours). The motivation is the evaluation of the changes that may occur in carbonaceous asteroids and meteorites, respectively, subjected to the action of the solar radiation and heated during the fall in the atmosphere. We carried out scanning electron microscopy, electron dispersive spectroscopy, X-ray diffraction, optical reflectance and photoluminescence measurements

Influence of temperature on structural-phase changes and physical properties of ceramics on the basis of aluminum oxide and silicon

2020 ◽  
Vol 62 (7) ◽  
pp. 716-720
Author(s):  
N. Kantay ◽  
N. Kasmamytov ◽  
B. Rakhadilov ◽  
S. Plotnikov ◽  
M. Paszkowski ◽  
...  
Keyword(s):  
Monoclinic Phase ◽  
Raw Materials ◽  
Structural Phase ◽  
Phase Changes ◽  
Initial State ◽  
Influence Of Temperature ◽  
X Ray ◽  
Influence Of Temperature On ◽  
Scanning Electron ◽  
High Voltage Porcelain

Abstract The purpose of this experiment was to prepare high-voltage porcelain ceramics as local raw materials. Density, water absorption, and volume shrinkage were determined according to the State standard (GOST 7025-91). A structural analysis was carried out using a scanning electron microscope, and an X-ray phase analysis was carried out on an Xpert PRO diffractometer. It was found, that in the initial state, ceramics consist of hexagonal (SiO2) and a small amount of monoclinic phase. Above a temperature of 1150 °С they consist of hexagonal (SiO2), an orthorhombic lattice, and also contain mullite (Al2Si2O13).

Influence of Temperature on the Preparation of GaN Nanowires

2014 ◽  
Vol 887-888 ◽  
pp. 121-125
Author(s):  
Xin Zhong Wang ◽  
Cheng Guo Wu ◽  
Shi Guo Li
Keyword(s):  
Electron Microscopy ◽  
Optoelectronic Devices ◽  
Chemical Vapor ◽  
Influence Of Temperature ◽  
One Dimensional ◽  
X Ray ◽  
Gan Nanowires ◽  
Transmission Electron ◽  
Influence Of Temperature On ◽  
Growth Method

As one-dimensional GaN material has excellent physical properties, it owns a huge prospect in the field of optoelectronic devices, and nanowire is currently one of the hotspots, at home and abroad, which had already invested a considerable force into the GaN nanowires. This paper studied the growth method based on Gas Liquid Solid (VLS) mechanism using Ni as catalyst in a chemical vapor deposition (CVD) system. By scanning electron microscopy (SEM), energy dispersive X-ray fluorescence (EDX) spectroscopy, transmission electron microscopy (TEM) test, we focused on the influence of temperature and pretreat on the morphology and properties of GaN nanowires. At the same time, we explored the law and gave an appropriate explanation.

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