XRD investigation of metastable phase formation in Li2O-2SiO2 glass

Lori L. Burgner; Michael C. Weinberg; Pierre Lucas; Paulo C. Soares; Edgar D. Zanotto

doi:10.1016/S0022-3093(99)00376-2

XRD investigation of metastable phase formation in Li₂O-2SiO₂ glass

Lori L. Burgner, Michael C. Weinberg, Pierre Lucas, Paulo C. Soares, Edgar D. Zanotto

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Metastable crystal phase formation in lithium disilicate glass has been a subject of controversy for many years. However, recent evidence mainly obtained via the use of electron microscopy has provided strong evidence for formation of metastable phases during the early stages of crystallization in this composition. Very recently, however, a study has appeared which suggests that these metastable phases are long-lived and can be detected with the aid of XRD. Here, we present XRD results obtained for lithium disilicate glasses which were heated for various time periods at several temperatures in the nucleation regime. In no case do we find any evidence for metastable phase formation. Possible causes for the discrepancy between the present and previous experimental results are discussed.

Original language	English (US)
Pages (from-to)	264-268
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	255
Issue number	2
DOIs	https://doi.org/10.1016/S0022-3093(99)00376-2
State	Published - Oct 1 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/S0022-3093(99)00376-2

Cite this

@article{0c8b19ff9cee4245a93b9fd2ac5d40a9,

title = "XRD investigation of metastable phase formation in Li2O-2SiO2 glass",

abstract = "Metastable crystal phase formation in lithium disilicate glass has been a subject of controversy for many years. However, recent evidence mainly obtained via the use of electron microscopy has provided strong evidence for formation of metastable phases during the early stages of crystallization in this composition. Very recently, however, a study has appeared which suggests that these metastable phases are long-lived and can be detected with the aid of XRD. Here, we present XRD results obtained for lithium disilicate glasses which were heated for various time periods at several temperatures in the nucleation regime. In no case do we find any evidence for metastable phase formation. Possible causes for the discrepancy between the present and previous experimental results are discussed.",

author = "Burgner, {Lori L.} and Weinberg, {Michael C.} and Pierre Lucas and Soares, {Paulo C.} and Zanotto, {Edgar D.}",

note = "Funding Information: M.C.W. wishes to extend his appreciation to the Office of Basic Energy Sciences of the US Department of Energy for partial support of this work. E.D.Z. thanks FAPESP and PRONEX for financial support of this work.",

year = "1999",

month = oct,

day = "1",

doi = "10.1016/S0022-3093(99)00376-2",

language = "English (US)",

volume = "255",

pages = "264--268",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - XRD investigation of metastable phase formation in Li2O-2SiO2 glass

AU - Burgner, Lori L.

AU - Weinberg, Michael C.

AU - Lucas, Pierre

AU - Soares, Paulo C.

AU - Zanotto, Edgar D.

N1 - Funding Information: M.C.W. wishes to extend his appreciation to the Office of Basic Energy Sciences of the US Department of Energy for partial support of this work. E.D.Z. thanks FAPESP and PRONEX for financial support of this work.

PY - 1999/10/1

Y1 - 1999/10/1

N2 - Metastable crystal phase formation in lithium disilicate glass has been a subject of controversy for many years. However, recent evidence mainly obtained via the use of electron microscopy has provided strong evidence for formation of metastable phases during the early stages of crystallization in this composition. Very recently, however, a study has appeared which suggests that these metastable phases are long-lived and can be detected with the aid of XRD. Here, we present XRD results obtained for lithium disilicate glasses which were heated for various time periods at several temperatures in the nucleation regime. In no case do we find any evidence for metastable phase formation. Possible causes for the discrepancy between the present and previous experimental results are discussed.

AB - Metastable crystal phase formation in lithium disilicate glass has been a subject of controversy for many years. However, recent evidence mainly obtained via the use of electron microscopy has provided strong evidence for formation of metastable phases during the early stages of crystallization in this composition. Very recently, however, a study has appeared which suggests that these metastable phases are long-lived and can be detected with the aid of XRD. Here, we present XRD results obtained for lithium disilicate glasses which were heated for various time periods at several temperatures in the nucleation regime. In no case do we find any evidence for metastable phase formation. Possible causes for the discrepancy between the present and previous experimental results are discussed.

UR - http://www.scopus.com/inward/record.url?scp=0032685586&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032685586&partnerID=8YFLogxK

U2 - 10.1016/S0022-3093(99)00376-2

DO - 10.1016/S0022-3093(99)00376-2

M3 - Article

AN - SCOPUS:0032685586

VL - 255

SP - 264

EP - 268

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

IS - 2

ER -

XRD investigation of metastable phase formation in Li₂O-2SiO₂ glass

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this