Isothermal phase transformations of a dental porcelain

S. Warren Twiggs; J. Rodway MacKert; Amalia L. Oxford; Janet W. Ergle; Petra E. Lockwood

doi:10.1016/j.dental.2005.01.001

Isothermal phase transformations of a dental porcelain

S. Warren Twiggs, J. Rodway MacKert, Amalia L. Oxford, Janet W. Ergle, Petra E. Lockwood

Restorative Sciences

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

7 Scopus citations

Abstract

Change in the leucite weight fraction during an isothermal heat treatment was estimated by observing the deformation of PFM strips in a high-heating-rate, computer-controlled bending beam viscometer (BBV). Specimens of a commercial body porcelain were fired according to the manufacturers instructions-50 disk specimens for quantitative X-ray diffraction (XRD) and 100 bimaterial strip specimens for BBV. Timoshenko's equation for bimaterial thermostat was used to estimate the change in the thermal expansion of the porcelain near room temperature. Good agreement was obtained between values of leucite weight fraction derived from beam deformation and those determined by XRD.

Original language	English (US)
Pages (from-to)	580-585
Number of pages	6
Journal	Dental Materials
Volume	21
Issue number	6
DOIs	https://doi.org/10.1016/j.dental.2005.01.001
State	Published - Jun 2005

Keywords

Ceramics
Dental porcelain
Leucite
Thermal expansion
X-ray diffraction

ASJC Scopus subject areas

General Materials Science
General Dentistry
Mechanics of Materials

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10.1016/j.dental.2005.01.001

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@article{a069822c6c254858a5aefc7e1ec527a5,

title = "Isothermal phase transformations of a dental porcelain",

abstract = "Change in the leucite weight fraction during an isothermal heat treatment was estimated by observing the deformation of PFM strips in a high-heating-rate, computer-controlled bending beam viscometer (BBV). Specimens of a commercial body porcelain were fired according to the manufacturers instructions-50 disk specimens for quantitative X-ray diffraction (XRD) and 100 bimaterial strip specimens for BBV. Timoshenko's equation for bimaterial thermostat was used to estimate the change in the thermal expansion of the porcelain near room temperature. Good agreement was obtained between values of leucite weight fraction derived from beam deformation and those determined by XRD.",

keywords = "Ceramics, Dental porcelain, Leucite, Thermal expansion, X-ray diffraction",

author = "Twiggs, {S. Warren} and MacKert, {J. Rodway} and Oxford, {Amalia L.} and Ergle, {Janet W.} and Lockwood, {Petra E.}",

note = "Funding Information: Support by NIH/NIDCR Grant No. R01 DE07806 is gratefully acknowledged. The authors also wish to thank Dr Arun Prasad of Pentron Laboratory Technologies, LLC, for providing the Rexillium III used in this study.",

year = "2005",

month = jun,

doi = "10.1016/j.dental.2005.01.001",

language = "English (US)",

volume = "21",

pages = "580--585",

journal = "Dental Materials",

issn = "0109-5641",

publisher = "Elsevier Science",

number = "6",

}

TY - JOUR

T1 - Isothermal phase transformations of a dental porcelain

AU - Twiggs, S. Warren

AU - MacKert, J. Rodway

AU - Oxford, Amalia L.

AU - Ergle, Janet W.

AU - Lockwood, Petra E.

N1 - Funding Information: Support by NIH/NIDCR Grant No. R01 DE07806 is gratefully acknowledged. The authors also wish to thank Dr Arun Prasad of Pentron Laboratory Technologies, LLC, for providing the Rexillium III used in this study.

PY - 2005/6

Y1 - 2005/6

N2 - Change in the leucite weight fraction during an isothermal heat treatment was estimated by observing the deformation of PFM strips in a high-heating-rate, computer-controlled bending beam viscometer (BBV). Specimens of a commercial body porcelain were fired according to the manufacturers instructions-50 disk specimens for quantitative X-ray diffraction (XRD) and 100 bimaterial strip specimens for BBV. Timoshenko's equation for bimaterial thermostat was used to estimate the change in the thermal expansion of the porcelain near room temperature. Good agreement was obtained between values of leucite weight fraction derived from beam deformation and those determined by XRD.

AB - Change in the leucite weight fraction during an isothermal heat treatment was estimated by observing the deformation of PFM strips in a high-heating-rate, computer-controlled bending beam viscometer (BBV). Specimens of a commercial body porcelain were fired according to the manufacturers instructions-50 disk specimens for quantitative X-ray diffraction (XRD) and 100 bimaterial strip specimens for BBV. Timoshenko's equation for bimaterial thermostat was used to estimate the change in the thermal expansion of the porcelain near room temperature. Good agreement was obtained between values of leucite weight fraction derived from beam deformation and those determined by XRD.

KW - Ceramics

KW - Dental porcelain

KW - Leucite

KW - Thermal expansion

KW - X-ray diffraction

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DO - 10.1016/j.dental.2005.01.001

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AN - SCOPUS:18544386835

SN - 0109-5641

VL - 21

SP - 580

EP - 585

JO - Dental Materials

JF - Dental Materials

IS - 6

ER -

Isothermal phase transformations of a dental porcelain

Abstract

Keywords

ASJC Scopus subject areas

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