temperaturerising.Thetemperaturedependenceofdensityindicates
a
lowerthermal
coe衔cientofborosilicatemelt.ThesurfacetensionofbothborosilicateandNa-Cacontainingglassmeltsincreaseslinearly
to
withtemperaturewithin1000℃~1200℃andtemperaturecoefficientsare0.27867and0.11867,respectively.Itisreasonablethathighersurfacetensionand
deduce
temperaturecoefficientofborosilicatemelt
are
attributedtotheeffectofboronoxide.
Keywords:borosilicateglass;density;surfacetension;sessiledropmethod
Biography:LiJianqiang,Ph.D.,AssociateProfessor,InstituteofProcessEngineering,ChineseAcademyof
Sciences,Beijing
100190,P
R China,Tel:0086-10_62533383,E-mail:jqli@home.ipe.ac.ca
万方数据
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