Reactive yttrium aluminate garnet powder via coprecipitation using ammonium hydrogen carbonate as the precipitant

Ji Guang Li; Takayasu Ikegami; Jong Heun Lee; Toshiyuki Mori; Yoshiyuki Yajima

doi:10.1557/JMR.2000.0269

Reactive yttrium aluminate garnet powder via coprecipitation using ammonium hydrogen carbonate as the precipitant

Ji Guang Li, Takayasu Ikegami, Jong Heun Lee, Toshiyuki Mori, Yoshiyuki Yajima

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

30 Citations (Scopus)

Abstract

Ammonium hydrogen carbonate was used as the precipitant to synthesize yttrium aluminate garnet (YAG) precursors from a mixed solution of aluminum and yttrium nitrates via coprecipitation. The carbonate precursor, with an approximate composition of NH₄AlY_0.6(CO₃)_1.9(OH)₂ · 0.8H₂O, transformed to pure YAG at 900 °C without the formation of intermediate phases. Reactive YAG powder was produced by calcining the precursor at 1100 °C. The YAG powder densified to 99.8% of the theoretical density by vacuum sintering at 1500 °C for 2 h, and the sintered body showed transparency. Less agglomeration of the precursor and good dispersity of the resultant YAG powder were responsible for the excellent sinterability.

Original language	English
Pages (from-to)	1864-1867
Number of pages	4
Journal	Journal of Materials Research
Volume	15
Issue number	9
DOIs	https://doi.org/10.1557/JMR.2000.0269
Publication status	Published - 2000 Sep
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/JMR.2000.0269

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@article{e63b752915ad4230aa02b7d5d21b7421,

title = "Reactive yttrium aluminate garnet powder via coprecipitation using ammonium hydrogen carbonate as the precipitant",

abstract = "Ammonium hydrogen carbonate was used as the precipitant to synthesize yttrium aluminate garnet (YAG) precursors from a mixed solution of aluminum and yttrium nitrates via coprecipitation. The carbonate precursor, with an approximate composition of NH4AlY0.6(CO3)1.9(OH)2 · 0.8H2O, transformed to pure YAG at 900 °C without the formation of intermediate phases. Reactive YAG powder was produced by calcining the precursor at 1100 °C. The YAG powder densified to 99.8% of the theoretical density by vacuum sintering at 1500 °C for 2 h, and the sintered body showed transparency. Less agglomeration of the precursor and good dispersity of the resultant YAG powder were responsible for the excellent sinterability.",

author = "Li, {Ji Guang} and Takayasu Ikegami and Lee, {Jong Heun} and Toshiyuki Mori and Yoshiyuki Yajima",

note = "Funding Information: J-G. Li thanks Japan International Science and Technology Exchange Center/Japan Science and Technology Corporation (JISTEC/JST) of Japan for a Science and Technology Agency (STA) fellowship. Special thanks is due to Dr. Tadao Sato of NIRIM for helping conduct DTA/TG analysis measurement.",

year = "2000",

month = sep,

doi = "10.1557/JMR.2000.0269",

language = "English",

volume = "15",

pages = "1864--1867",

journal = "Journal of Materials Research",

issn = "0884-2914",

publisher = "Materials Research Society",

number = "9",

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T1 - Reactive yttrium aluminate garnet powder via coprecipitation using ammonium hydrogen carbonate as the precipitant

AU - Li, Ji Guang

AU - Ikegami, Takayasu

AU - Lee, Jong Heun

AU - Mori, Toshiyuki

AU - Yajima, Yoshiyuki

N1 - Funding Information: J-G. Li thanks Japan International Science and Technology Exchange Center/Japan Science and Technology Corporation (JISTEC/JST) of Japan for a Science and Technology Agency (STA) fellowship. Special thanks is due to Dr. Tadao Sato of NIRIM for helping conduct DTA/TG analysis measurement.

PY - 2000/9

Y1 - 2000/9

N2 - Ammonium hydrogen carbonate was used as the precipitant to synthesize yttrium aluminate garnet (YAG) precursors from a mixed solution of aluminum and yttrium nitrates via coprecipitation. The carbonate precursor, with an approximate composition of NH4AlY0.6(CO3)1.9(OH)2 · 0.8H2O, transformed to pure YAG at 900 °C without the formation of intermediate phases. Reactive YAG powder was produced by calcining the precursor at 1100 °C. The YAG powder densified to 99.8% of the theoretical density by vacuum sintering at 1500 °C for 2 h, and the sintered body showed transparency. Less agglomeration of the precursor and good dispersity of the resultant YAG powder were responsible for the excellent sinterability.

AB - Ammonium hydrogen carbonate was used as the precipitant to synthesize yttrium aluminate garnet (YAG) precursors from a mixed solution of aluminum and yttrium nitrates via coprecipitation. The carbonate precursor, with an approximate composition of NH4AlY0.6(CO3)1.9(OH)2 · 0.8H2O, transformed to pure YAG at 900 °C without the formation of intermediate phases. Reactive YAG powder was produced by calcining the precursor at 1100 °C. The YAG powder densified to 99.8% of the theoretical density by vacuum sintering at 1500 °C for 2 h, and the sintered body showed transparency. Less agglomeration of the precursor and good dispersity of the resultant YAG powder were responsible for the excellent sinterability.

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DO - 10.1557/JMR.2000.0269

M3 - Article

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VL - 15

SP - 1864

EP - 1867

JO - Journal of Materials Research

JF - Journal of Materials Research

SN - 0884-2914

IS - 9

ER -

Reactive yttrium aluminate garnet powder via coprecipitation using ammonium hydrogen carbonate as the precipitant

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