TY - JOUR

T1 - Composition-Structure-Property Relationships in Boroaluminosilicate Glasses

A1 - Zheng,Qiuju

A1 - Potuzak,M.

A1 - Mauro,J.C.

A1 - Smedskjær,Morten Mattrup

A1 - Youngman,R. E.

A1 - Yue,Yuanzheng

AU - Zheng,Qiuju

AU - Potuzak,M.

AU - Mauro,J.C.

AU - Smedskjær,Morten Mattrup

AU - Youngman,R. E.

AU - Yue,Yuanzheng

PB - Elsevier BV North-Holland

PY - 2012

Y1 - 2012

N2 - The complicated structural speciation in boroaluminosilicate glasses leads to a mixed network former effect yielding nonlinear variation in many macroscopic properties as a function of chemical composition. Here we study the composition–structure–property relationships in a series of sodium boroaluminosilicate glasses from peralkaline to peraluminous compositions by substituting Al2O3 for SiO2. Our results reveal a pronounced change in all the measured physical properties (density, elastic moduli, hardness, glass transition temperature, and liquid fragility) around [Al2O3]–[Na2O]=0. The structural origin of this change is elucidated through nuclear magnetic resonance analyses and topological considerations. Furthermore, we find that addition of 1 mol% Fe2O3 exerts a complicated impact on the measured properties.

AB - The complicated structural speciation in boroaluminosilicate glasses leads to a mixed network former effect yielding nonlinear variation in many macroscopic properties as a function of chemical composition. Here we study the composition–structure–property relationships in a series of sodium boroaluminosilicate glasses from peralkaline to peraluminous compositions by substituting Al2O3 for SiO2. Our results reveal a pronounced change in all the measured physical properties (density, elastic moduli, hardness, glass transition temperature, and liquid fragility) around [Al2O3]–[Na2O]=0. The structural origin of this change is elucidated through nuclear magnetic resonance analyses and topological considerations. Furthermore, we find that addition of 1 mol% Fe2O3 exerts a complicated impact on the measured properties.

UR - http://pdn.sciencedirect.com.zorac.aub.aau.dk/science?_ob=MiamiImageURL&_cid=271563&_user=632453&_pii=S0022309312000452&_check=y&_origin=browse&_zone=rslt_list_item&_coverDate=2012-04-01&wchp=dGLbVlS-zSkWz&md5=e7a3b6d4cc8e2f230c3053e25b7f1b45/1-s2.0-S0022309312000452-main.pdf

U2 - 10.1016/j.jnoncrysol.2012.01.030

DO - 10.1016/j.jnoncrysol.2012.01.030

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

IS - 6-7

VL - 358

SP - 993

EP - 1002

ER -