scholarly journals Microstructural Characterisation of Austenitic Heat Resistant Sanicro 25 Steel after Steam Oxidation

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3382
Author(s):  
Bogdan Rutkowski
Keyword(s):  
Analytical Techniques ◽  
Amorphous Sio2 ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Microscopy Investigation ◽  
Electron Microscopy Investigation ◽  
The Matrix ◽  
Scanning Electron Microscopy Investigation ◽  
Microstructural Characterisation ◽  
Phase Plates

Microstructural and morphological observations of the surface scale on a high Cr and Ni austenitic heat resistant steel oxidised in water vapour at 700 °C are reported. Analysis of microstructure was carried out by analytical techniques of transmission- and scanning electron microscopy. Investigation of M23C6 nucleated at the interface between matrix and the Z-phase precipitates after exposing to high temperature showed semicoherency between M23C6 and the matrix and no coherency with the Z-phase. Plates developed on the oxide scale surface consist of Cr2O3 crystals separated by amorphous SiO2.

scholarly journals Sonophoretic acceleration of degradation process for vaterite particles delivered into the hair follicles

2021 ◽  
Vol 21 (1) ◽  
pp. 80-85
Author(s):  
Yulia I. Svenskaya ◽  
◽  
Elina A. Genina ◽  
Valery V. Tuchin ◽  
◽  
...  
Keyword(s):  
Degradation Process ◽  
Hair Follicles ◽  
Bioactive Molecules ◽  
Microscopy Investigation ◽  
Electron Microscopy Investigation ◽  
Minute Post ◽  
Scanning Electron Microscopy Investigation ◽  
Particulate Delivery ◽  
Scanning Electron

Intrafollicular drug delivery is beneficial in terms of both localized therapy of relevant skin disorders and systemic transportation of bioactive molecules. Vaterite particles are capable of loading and delivering various substances to hair follicles. Possibility to control the duration of their intrafollicular degradation can improve such a particulate delivery system. Here, we propose the use of sonophoresis (1 MHz, 1 W/cm2 ) to accelerate the resorption of vaterite carriers inside the hair follicles of rats in vivo. The effect of sonication is demonstrated utilizing optical coherence tomography monitoring of the skin and scanning electron microscopy investigation of the plucked hairs. A nine-minute post-treatment of skin in the site of particle delivery allowed us to almost halve the time of their degradation.

Scanning electron microscopy investigation of tooth/filling bonding

e-Polymers ◽  
2005 ◽  
Vol 5 (1) ◽  
Author(s):  
Joanna Siejka-Kulczyk ◽  
Małgorzata Lewandowska ◽  
Marta Raczyńska ◽  
Elżbieta Jodkowska ◽  
Krzysztof J. Kurzydłowski
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Human Teeth ◽  
Bonding Quality ◽  
Dental Fillings ◽  
Microscopy Investigation ◽  
Electron Microscopy Investigation ◽  
Scanning Electron Microscopy Investigation ◽  
Tissue Material ◽  
Scanning Electron

AbstractScanning electron microscopy (SEM) investigations have been conducted to determine the influence of selected material on tissue/material bonding. Extracted human teeth were used in this study. Several resin composites were tested as dental fillings. To reveal the structure of the tissue/filling interface, the teeth were cut parallel to the long axis. Bonding quality was determined by direct SEM observation and microanalysis with X-ray energy spectrometry (EDX). The investigated materials show good bonding with enamel.

Enhanced Bioactivity of Sandblasted and Acid-Etched Titanium Surfaces

2009 ◽  
Vol 79-82 ◽  
pp. 393-396 ◽  
Author(s):  
En Wei Zhang ◽  
Yan Bo Wang ◽  
Fei Gao ◽  
Shi Cheng Wei ◽  
Yu Feng Zheng
Keyword(s):  
Cell Attachment ◽  
Early Stage ◽  
Mg63 Cell ◽  
Nano Structure ◽  
Alp Activity ◽  
Microscopy Investigation ◽  
Electron Microscopy Investigation ◽  
Scanning Electron Microscopy Investigation ◽  
Titanium Surfaces ◽  
Cp Ti

Two new modified sandblasted and acid etched (SLA) surface methods had been used on commercially pure Ti (Cp-Ti) surface. Scanning electron microscopy investigation showed that modified SLA surfaces had micro- and nano-structure surface topography. Contact angle test showed that surface hydrophilicity was significantly increased after modified SLA surface modification. Human osteoblast-like MG63 cell attachment test showed that modified SLA surfaces would attach more cells than simple SLA surface. The alkaline phosphatase (ALP) activity assay indicated that ALP activity was enhanced on two modified SLA surfaces relative to SLA and mechanically polished Cp-Ti surface at early stage. Thus, subsequent chemical modification of SLA surface seems to be a promising method to generate better bioactive surface properties.

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