Influence of Acid Frosting on the Microstructure Characteristics and Mechanical Strength of Eroded Soda-Lime-Silica Glasses by Sandstorm
Journal Title: International Journal of Structural Glass and Advanced Materials Research - Year 2017, Vol 1, Issue 1
Abstract
Most glass products such as cars windshields, solar panels protecting glass and windowpanes are exposed to unavoidable sandblasting effects especially in areas prone to sandstorms. This sand impingement results into micro cracks and surface flaws which altered the structure and strength of the exposed glasses thereby lowering their service life. In this regard, attempt was made in this research to investigate the influence of acid frosting technique as a means of surface modification on the microstructure characteristics and mechanical strength of eroded soda-lime-silica glass. Several glass samples measuring 80x60 mm were initially prepared and exposed to sand impingement from a sandblasting machine with an air flow speed of 15m/s and an impact angle of 90°. The sandblasted glass samples (Scontrol) were later immersed in Hydrofluoric Acid (HF) for acid frosting procedure at dipping period of 5, 10, 15 and 20 minutes respectively. Microstructure characteristics were examined using scanning electron microscopy while flexural strength test was conducted to assess the mechanical strength of the sample glasses. The results showed that mechanical strength of the etched-sandblasted samples (S+E series) improve significantly as the dipping period increases compared with sandblasted glasses. In term of microstructure, homogenously distributed micro-cracks and numerous flaws were observed on the eroded glass samples while for the S+E series, the stress riser effect of these micro-cracks are well eliminated which accounts for the strength improvement.
Authors and Affiliations
Akinwumi Gbenga Owoyemi, Grace Olufunke Matthew and Seun Samuel Owoeye
Keywords
Related Articles
- EP ID EP40349
- DOI -
- Views 345
- Downloads 0
Construction Stage Analysis for a New Mixed Structure Building in Milan
In this study the Construction Stage Analysis (CSA) of a new mixed structure building is discussed in order to identify the best timing and execution activities scheduling. The building is part of a new university campus...
ESR and FT-IR Studies on GeO2 Substituted Lead Vanadate Semiconducting Glass System
A series of Germania-lead-vanadium pentoxide glasses with x=5, 10 and 15 mol% were prepared by melt quenching technique and they were characterized by X-ray diffraction (XRD), Differential scanning calorimetry (DSC),...
Theoretical Analysis and Technical Seismicity Effect Assessment onto the Production Factory due to Traffic in Prešov City
The technical seismicity effect assessment caused by traffic is the aim of article. The highway structure, as the mine of vibration, includes common layers and also special materials with dumping properties. It is the ge...
Transformable Curved Thin Glass Greenhouse.
The use of new generation thin, lightweight and damage-resistant glass, originally conceived for electronic displays, is being very recently proposed for structural applications, in particular for adaptive and movable sk...
Key Structural Aspects for Adaptive Facades - Activity Progress from the EU-COST Action TU1403 ‘Structural’ Task Group
Adaptive facades are getting more and more widespread in modern buildings. These facade systems, among many others, need to fulfil the requirements of several structural considerations, such as structural safety, service...