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Effect of the alkali concentration on the crystallization of BaF2 from Na2O/K2O/BaF2/Al2O3/SiO2 glasses

✍ Scribed by Luís Felipe Vendramim; Katharina Zorn; Christian Bocker; Christian Rüssel

Book ID
116672143
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
473 KB
Volume
356
Category
Article
ISSN
0022-3093

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Self-organized nano-crystallisation of B
Self-organized nano-crystallisation of BaF2 from Na2O/K2O/BaF2/Al2O3/SiO2 glasses
✍ Christian Bocker; Christian Rüssel 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 398 KB

In glasses with the compositions (100x)(2Na 2 O•16K 2 O•8Al 2 O 3 •74SiO 2 )xBaF 2 (with x = 0 to 6), the glass transition temperature decreases with increasing BaF 2 -concentration. Samples with x = 6 were thermally treated at temperatures in the range from 500 to 600 • C for 5-160 h. This leads to