Sintered silica bodies with persistent luminescence

N. Ojha; T. Trautvetter; I. Norrbo; A. Kalide; M. Lastusaari; R. Mueller; L. Petit

doi:10.1016/j.scriptamat.2019.02.044

Sintered silica bodies with persistent luminescence

N. Ojha, T. Trautvetter, I. Norrbo, A. Kalide, M. Lastusaari, R. Mueller, L. Petit

Physics

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

6 Citations (Scopus)

Abstract

Strong persistent luminescence (PeL) from silica bodies was obtained, for the first time, by sintering silica powder mixed with PeL SrAl2O4:Eu2+,Dy3+ microparticles (MPs). We show that it is not possible to prepare transparent PeL silica glass due to the decomposition of the MPs, which occurs already at 1450 °C. The MPs decomposition was associated with the precipitation of Sr3Al10SiO20 phase when sintering up to 1650 °C and of SrAl2Si2O8 when sintering between 1650 and 1750 °C. Cristobalite was found to also precipitate when sintering for 10 min but has no impact on the PeL of the bodies.

Original language	English
Pages (from-to)	15-18
Number of pages	4
Journal	Scripta Materialia
Volume	166
DOIs	https://doi.org/10.1016/j.scriptamat.2019.02.044
Publication status	Published - Jun 2019
Publication type	A1 Journal article-refereed

Keywords

Silica bodies
SrAlO:Eu,Dy microparticles
Persistent luminescence
Sintering

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10.1016/j.scriptamat.2019.02.044

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title = "Sintered silica bodies with persistent luminescence",

abstract = "Strong persistent luminescence (PeL) from silica bodies was obtained, for the first time, by sintering silica powder mixed with PeL SrAl2O4:Eu2+,Dy3+ microparticles (MPs). We show that it is not possible to prepare transparent PeL silica glass due to the decomposition of the MPs, which occurs already at 1450 °C. The MPs decomposition was associated with the precipitation of Sr3Al10SiO20 phase when sintering up to 1650 °C and of SrAl2Si2O8 when sintering between 1650 and 1750 °C. Cristobalite was found to also precipitate when sintering for 10 min but has no impact on the PeL of the bodies.",

keywords = "Silica bodies, SrAlO:Eu,Dy microparticles, Persistent luminescence, Sintering",

author = "N. Ojha and T. Trautvetter and I. Norrbo and A. Kalide and M. Lastusaari and R. Mueller and L. Petit",

year = "2019",

month = jun,

doi = "10.1016/j.scriptamat.2019.02.044",

language = "English",

volume = "166",

pages = "15--18",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - Sintered silica bodies with persistent luminescence

AU - Ojha, N.

AU - Trautvetter, T.

AU - Norrbo, I.

AU - Kalide, A.

AU - Lastusaari, M.

AU - Mueller, R.

AU - Petit, L.

PY - 2019/6

Y1 - 2019/6

N2 - Strong persistent luminescence (PeL) from silica bodies was obtained, for the first time, by sintering silica powder mixed with PeL SrAl2O4:Eu2+,Dy3+ microparticles (MPs). We show that it is not possible to prepare transparent PeL silica glass due to the decomposition of the MPs, which occurs already at 1450 °C. The MPs decomposition was associated with the precipitation of Sr3Al10SiO20 phase when sintering up to 1650 °C and of SrAl2Si2O8 when sintering between 1650 and 1750 °C. Cristobalite was found to also precipitate when sintering for 10 min but has no impact on the PeL of the bodies.

AB - Strong persistent luminescence (PeL) from silica bodies was obtained, for the first time, by sintering silica powder mixed with PeL SrAl2O4:Eu2+,Dy3+ microparticles (MPs). We show that it is not possible to prepare transparent PeL silica glass due to the decomposition of the MPs, which occurs already at 1450 °C. The MPs decomposition was associated with the precipitation of Sr3Al10SiO20 phase when sintering up to 1650 °C and of SrAl2Si2O8 when sintering between 1650 and 1750 °C. Cristobalite was found to also precipitate when sintering for 10 min but has no impact on the PeL of the bodies.

KW - Silica bodies

KW - SrAlO:Eu,Dy microparticles

KW - Persistent luminescence

KW - Sintering

U2 - 10.1016/j.scriptamat.2019.02.044

DO - 10.1016/j.scriptamat.2019.02.044

M3 - Article

SN - 1359-6462

VL - 166

SP - 15

EP - 18

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Sintered silica bodies with persistent luminescence

Abstract

Keywords

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