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 355
- Downloads 0
Nonlinear Analysis of RC Box Culverts Resting on a Linear Elastic Soil
In the analyses presented, the soil-structure interaction is accounted for by means of a FE-BIE approach, in which the structure is modelled with displacement-based beam finite elements, whereas the boundary between stru...
Knowledge Acquisition of Existing Buildings by Means of Diagnostic Surveying. Case Studies
The issue of assessing the structural safety of existing buildings involves several problems when a unique and reliable strategy of modelling and analyzing is looked for. This is mainly related to the peculiarity of each...
Reliability of Selected Critical Infrastructure Elements
The paper brings an overview of aspect of reliability of selected critical infrastructure elements. Firstly critical infrastructure elements are defined. Extreme loading of such elements and the normative standards are m...
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...
About Glassy Amorphous Metal Injection
The paper aims to present studies on the melt flow, melting and rheology of melting in a super-cooled metastable liquid metal, which is injection molded, of the Zr44-Ti11-Cu10-Ni10-Be25 alloy, which can induce selective...