Mauro, John C.

Smedskjær, Morten Mattrup

Youngman, Randall E.

    Aalborg UniversitetStructure-Property Relationships in Pyrex® and Related Boroaluminosilicate GlassesYoungman, Randall E.; Mauro, John C.; Smedskjær, Morten MattrupPublication date:2014Document VersionEarly version, also known as pre-printLink to publication from Aalborg UniversityCitation for published version (APA):Youngman, R. E., Mauro, J. C., & Smedskjær, M. M. (2014). Structure-Property Relationships in Pyrex® andRelated Boroaluminosilicate Glasses. Abstract from International Conference on Borate Glasses, Crystals andMelts, Pardubice, Czech Republic.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            ? Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            ? You may not further distribute the material or use it for any profit-making activity or commercial gain            ? You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: April 25, 2017Structure-Property Relationships in Pyrex® and Related Boroaluminosilicate Glasses Randall E. Youngman1, John C. Mauro1, Morten M. Smedskjaer2 1 Science and Technology Division, Corning Incorporated, Corning, NY 14831, USA 2 Section of Chemistry, Aalborg University, DK-9000 Aalborg, Denmark  ABSTRACT Pyrex® glass was one of the first commercial boroaluminosilicate glass compositions, selected in 1915 from thousands of compositions due its ability to sustain mechanical and thermal shock. While the microscopic structure of Pyrex® glass has recently been investigated, the microscopic origins of the changes in the macroscopic properties are not well understood, i.e., the atomic scale foundation of the original empirical invention of Pyrex® glass has yet to be established. In this work, we have tackled this problem by investigating the effects of varying Si/Al and Na/B ratios on the boron and aluminum speciation and a range of physical and rheological properties in the Pyrex® glass family. We show that the canonical Pyrex® boroaluminosilicate composition is indeed optimal for attaining relatively high values of glass transition temperature and elastic moduli and a low coefficient of thermal expansion, while simultaneously maintaining a high glass-forming ability.  

Structure-Property Relationships in Pyrex® and Related Boroaluminosilicate Glasses

http://vbn.aau.dk/files/207791585/Borate_conference_abstract.pdf

Structure-Property Relationships in Pyrex® and Related Boroaluminosilicate Glasses

Abstract

Similar works

Full text

Available Versions

VBN