Browsing ARS 2020 by Subject "Heat treatment"

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  • Jayalath, R.D.M.G; Sandaruwan, P.D; Udawatte, C.P; Wanniarachchi, D.N.S; Wijesekara, H; Diyabalanage, R.S (Sabaragamuwa University of Sri Lanka, 2020-12-16)
    Sri Lanka is known the world over for its wide variety of coloured gemstones. In addition to the good quality gemstones, low-quality gemstones (Geuda) are found in Sri Lanka. Heat treatment is a physicochemical method ...

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