Crystallisation in the SrO-MgO-ZrO2-SiO2 (SMZS) system glasses

• Published in: Journal of materials science Vol. 37; no. 2; pp. 271 - 285
• Main Author: KARASU, B
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 15.01.2002; Springer Nature B.V
• Subjects: Cooling rate; Cross-disciplinary physics: materials science; rheology; Crystallization; Exact sciences and technology; Glass ceramics; Liquidus; Magnesium oxide; Materials science; Melts (crystal growth); Methods of crystal growth; physics of crystal growth; Physics; Quaternary systems; Silicon dioxide; Strontium oxides; Tetrahedra; Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation; Zirconium dioxide; Scanning electron microscopy; Inorganic compounds; Transition element compounds; Crystallization; Glass; Surfaces; Strontium silicates; Silicates; Magnesium silicates; Experimental study; Heat treatments; Zirconium silicates; Quaternary systems; Growth mechanism; Microstructure; Glass ceramics; Crystal growth from melts
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1023/A:1013640009944

The SrO-MgO-ZrO2-SiO2 quaternary system was first investigated in 1989. It was reported that the lowest liquidus temperature is as ∼1000°C and located near the SrO-SiO2 edge of the composition tetrahedron. Since the system has a wide range of glass formation, it has been extensively examined with the present study. After melting, depending on viscosity, glass melts tend to crystallise on cooling if the cooling rate is too slow to prevent such phenomenon. It is this behaviour that initiated investigation into the crystallisation ability of this glass system. As SMZS glasses include zirconia, surface crystallisation is generally inhibited. Hereby, crystallisation mechanisms, identification of crystal phases and microstructure of glass ceramics produced are given.