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Effects of Ion Exchange on the Mechanical Properties of Basaltic Glass Fibers
- Source :
- International Journal of Applied Glass Science. 7:118-127
- Publication Year :
- 2015
- Publisher :
- Wiley, 2015.
-
Abstract
- Basaltic glass fibers with different lithium oxide (6–14 mol%) and sodium oxide (2–14 mol%) contents were prepared. The influence of Li2O and Na2O content on the process of fiber manufacturing was investigated. Addition of alkali oxides reduced the forming temperature and substantially expanded the fiber-forming temperature ranges. The obtained thermal data from differential thermal analysis revealed a decline in glass transition temperature (Tg) of fibers against the compositional changes. The inclusion of Li2O and Na2O in the glass network led to a reduction in its thermal stability. The obtained X-ray diffraction patterns and IR spectra of Li-rich and Na-rich basaltic glass fibers confirmed the formation of highly polymerized structures such as LiAl(Si2O6) and (Na,K)(AlSiO4), respectively, and relatively depolymerized silicate anions. The effects of potassium–lithium and potassium–sodium ion exchange on the mechanical properties of basaltic glass fibers were investigated. As-received Li-rich and Na-rich basaltic glass fibers were ion-exchanged in potassium nitrate for different exchange times, and their mechanical properties were measured before and after chemical tempering. The measured tensile strength and Young's modulus values of the fibers showed an increase after treatment in molten salt.
- Subjects :
- 010302 applied physics
Materials science
Sodium oxide
Glass fiber
Mineralogy
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
chemistry.chemical_compound
chemistry
Chemical engineering
Differential thermal analysis
0103 physical sciences
General Materials Science
Thermal stability
Fiber
Lithium oxide
Molten salt
0210 nano-technology
Glass transition
Subjects
Details
- ISSN :
- 20411286
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- International Journal of Applied Glass Science
- Accession number :
- edsair.doi...........c0788be93584534ffdffbbb4d11c609f