Optical and Mechanical Properties of Lithium Aluminosilicate Glass-ceramics


  • Anil Kumar Department of Physics, Seth G. l. Bihani S. D. (PG) College, Sri Ganganagar –335001, India.
  • Anirban Chakrabarti Department of Solid-State Physics, Indian Association for the Cultivation of Science, Kolkata 700032.
  • Shaona Chatterjee Specialty Glass Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata-700032, India
  • Manoj S Shekhawat Department of Physics, Engineering College Bikaner, Bikaner - 334004, India https://orcid.org/0000-0002-6138-3522
  • Atiar Rahaman Molla Specialty Glass Division, CSIR- Central Glass and Ceramic Research Institute, Kolkata, (W.B.), India




Lithium Aluminosilicate glasses, TEM, FESEM


Lithium aluminosilicate glass-ceramics has many uses in high-tech applications. Beta quartz or spodumene solid solution phase in the Li2O-Al2O3-SiO2-P2O5 glass system has been precipitated by controlled heat-treatment of the parent glass. These glasses prepared by melt-quench technique. High transparency (>80%) in the visible wavelength range has been observed in the material by UV-VIS-NIR spectrometry.  FTIR spectra indicated the presence of Si-O as well as Al-O bonds in the glass-ceramics. The LAS glass ceramics showed moderate flexural strength (~80 MPa) and young’s modulus (~50 GPa). Microstructural characterization of the heat-treated glass ceramics by FESEM and TEM showed nano-crystalline spherical particles of 30-40 nm, which provided a rationale for its high transparency and good mechanical properties that may open up possibilities for newer applications.


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How to Cite

Kumar, A., Chakrabarti, A., Chatterjee, S., Shekhawat, M. S., & Molla, A. R. (2023). Optical and Mechanical Properties of Lithium Aluminosilicate Glass-ceramics. Journal of Condensed Matter, 1(01), 20–23. https://doi.org/10.61343/jcm.v1i01.5



Original Article