Synthesis of ceramic eutectics using microwave processing

Anton V. Polotai, Jiping Cheng, Dinesh Kumar Agrawal, Elizabeth C. Dickey, Sheldon Cytron

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This communication presents preliminary results of using microwave energy in order to melt and re-solidify oxide and non-oxide refractory ceramic eutectic compositions in an appropriate crucible. The Al2O3 -Y3Al5O12 (YAG) (Tm, = 1827°C) and B4C-TiB2 (Tm = 2310°C) eutectic compositions were melted in a multimode 2.45GHz microwave furnace using a specially designed insulating package based on boron nitride. Our experiments demonstrate the stability of eutectic melt temperature (the absence of temperature runaway) and the uniformity of subsequent eutectic microstructure across the sample diameter during the re-solidification of big ∼7cm 3 samples. The ability to reach ultra-high temperatures (T ∼ 2400°C) and prevent the formation of significant thermal gradient across the sample confirms the potential of using microwave energy for processing of directionally solidified refractory ceramic eutectic compositions.

Original languageEnglish (US)
Title of host publicationAdvances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites
Pages127-133
Number of pages7
Volume28
Edition5
StatePublished - 2008
Event31st International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States
Duration: Jan 21 2007Jan 26 2007

Other

Other31st International Conference on Advanced Ceramics and Composites
CountryUnited States
CityDaytona Beach, FL
Period1/21/071/26/07

Fingerprint

Eutectics
Microwaves
Processing
Refractory materials
Chemical analysis
Boron nitride
Crucibles
Thermal gradients
Temperature
Oxides
Solidification
Furnaces
Microstructure
Communication
Experiments

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Polotai, A. V., Cheng, J., Agrawal, D. K., Dickey, E. C., & Cytron, S. (2008). Synthesis of ceramic eutectics using microwave processing. In Advances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites (5 ed., Vol. 28, pp. 127-133)
Polotai, Anton V. ; Cheng, Jiping ; Agrawal, Dinesh Kumar ; Dickey, Elizabeth C. ; Cytron, Sheldon. / Synthesis of ceramic eutectics using microwave processing. Advances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites. Vol. 28 5. ed. 2008. pp. 127-133
@inproceedings{4484737c07d64ffaafd37f924eaf3aac,
title = "Synthesis of ceramic eutectics using microwave processing",
abstract = "This communication presents preliminary results of using microwave energy in order to melt and re-solidify oxide and non-oxide refractory ceramic eutectic compositions in an appropriate crucible. The Al2O3 -Y3Al5O12 (YAG) (Tm, = 1827°C) and B4C-TiB2 (Tm = 2310°C) eutectic compositions were melted in a multimode 2.45GHz microwave furnace using a specially designed insulating package based on boron nitride. Our experiments demonstrate the stability of eutectic melt temperature (the absence of temperature runaway) and the uniformity of subsequent eutectic microstructure across the sample diameter during the re-solidification of big ∼7cm 3 samples. The ability to reach ultra-high temperatures (T ∼ 2400°C) and prevent the formation of significant thermal gradient across the sample confirms the potential of using microwave energy for processing of directionally solidified refractory ceramic eutectic compositions.",
author = "Polotai, {Anton V.} and Jiping Cheng and Agrawal, {Dinesh Kumar} and Dickey, {Elizabeth C.} and Sheldon Cytron",
year = "2008",
language = "English (US)",
isbn = "9780470196366",
volume = "28",
pages = "127--133",
booktitle = "Advances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites",
edition = "5",

}

Polotai, AV, Cheng, J, Agrawal, DK, Dickey, EC & Cytron, S 2008, Synthesis of ceramic eutectics using microwave processing. in Advances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites. 5 edn, vol. 28, pp. 127-133, 31st International Conference on Advanced Ceramics and Composites, Daytona Beach, FL, United States, 1/21/07.

Synthesis of ceramic eutectics using microwave processing. / Polotai, Anton V.; Cheng, Jiping; Agrawal, Dinesh Kumar; Dickey, Elizabeth C.; Cytron, Sheldon.

Advances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites. Vol. 28 5. ed. 2008. p. 127-133.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Synthesis of ceramic eutectics using microwave processing

AU - Polotai, Anton V.

AU - Cheng, Jiping

AU - Agrawal, Dinesh Kumar

AU - Dickey, Elizabeth C.

AU - Cytron, Sheldon

PY - 2008

Y1 - 2008

N2 - This communication presents preliminary results of using microwave energy in order to melt and re-solidify oxide and non-oxide refractory ceramic eutectic compositions in an appropriate crucible. The Al2O3 -Y3Al5O12 (YAG) (Tm, = 1827°C) and B4C-TiB2 (Tm = 2310°C) eutectic compositions were melted in a multimode 2.45GHz microwave furnace using a specially designed insulating package based on boron nitride. Our experiments demonstrate the stability of eutectic melt temperature (the absence of temperature runaway) and the uniformity of subsequent eutectic microstructure across the sample diameter during the re-solidification of big ∼7cm 3 samples. The ability to reach ultra-high temperatures (T ∼ 2400°C) and prevent the formation of significant thermal gradient across the sample confirms the potential of using microwave energy for processing of directionally solidified refractory ceramic eutectic compositions.

AB - This communication presents preliminary results of using microwave energy in order to melt and re-solidify oxide and non-oxide refractory ceramic eutectic compositions in an appropriate crucible. The Al2O3 -Y3Al5O12 (YAG) (Tm, = 1827°C) and B4C-TiB2 (Tm = 2310°C) eutectic compositions were melted in a multimode 2.45GHz microwave furnace using a specially designed insulating package based on boron nitride. Our experiments demonstrate the stability of eutectic melt temperature (the absence of temperature runaway) and the uniformity of subsequent eutectic microstructure across the sample diameter during the re-solidification of big ∼7cm 3 samples. The ability to reach ultra-high temperatures (T ∼ 2400°C) and prevent the formation of significant thermal gradient across the sample confirms the potential of using microwave energy for processing of directionally solidified refractory ceramic eutectic compositions.

UR - http://www.scopus.com/inward/record.url?scp=57649184435&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57649184435&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9780470196366

VL - 28

SP - 127

EP - 133

BT - Advances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites

ER -

Polotai AV, Cheng J, Agrawal DK, Dickey EC, Cytron S. Synthesis of ceramic eutectics using microwave processing. In Advances in Ceramic Armor III - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites. 5 ed. Vol. 28. 2008. p. 127-133