Abstract

Translucent alumina ceramics was fabricated by a novel and simple gelling system using a water-soluble co-polymer of isobutylene and maleic anhydride (Isobam), acting as dispersant and gelling agent. Alumina slurry was prepared by mixing alumina powder, deionized water and 0.5wt% Isobam. Both rheological properties and gelling behaviors of the slurry were evaluated. Without an initiator or any other additives, gelation of the slurry occurred at room temperature in air atmosphere. After dried and presintered, the green body was sintered at 1850°C for 5h in vacuum furnace. In-line transmittance of the resultant alumina ceramics (1mm thick) was 29.5% at 600nm.

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  1. O. O. Omatete, M. A. Janney, and R. A. Strehlow, “Gelcasting—a new ceramic forming process,” Am. Ceram. Soc. Bull. 70(10), 1641–1649 (1991).
  2. M. Takeshita and S. Kurita, “Development of self-hardening slip casting,” J. Eur. Ceram. Soc. 17(2–3), 415–419 (1997).
    [Crossref]
  3. X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting of alumina using epoxy resin as gelling agent,” J. Am. Ceram. Soc. 90(3), 986–988 (2007).
    [Crossref]
  4. S. L. Morissette and J. A. Lewis, “Chemorheoloy of aqueous-based alumina-poly (vinyl alcohol) gelcoasting suspensions,” J. Am. Ceram. Soc. 82(3), 521–528 (1999).
    [Crossref]
  5. I. Santacruz, M. I. Nieto, and R. Moreno, “Alumina bodies with near-to-theoretical density by aqueous gelcasting using concentrated agarose solutions,” Ceram. Int. 31(3), 439–445 (2005).
    [Crossref]
  6. Y. Yang, S. Z. Shimai, and S. W. Wang, “Room-temperature gelcasting of alumina by a water-soluble co-polymer,” J. Mater. Res., DOI: .
    [Crossref]
  7. E. Adolfsson, “Gelcasting of zirconia using agarose,” J. Am. Ceram. Soc. 89(6), 1897–1902 (2006).
    [Crossref]
  8. X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting and pressureless sintering of translucent alumina ceramics,” J. Am. Ceram. Soc. 91(5), 1700–1702 (2008).
    [Crossref]

2008 (1)

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting and pressureless sintering of translucent alumina ceramics,” J. Am. Ceram. Soc. 91(5), 1700–1702 (2008).
[Crossref]

2007 (1)

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting of alumina using epoxy resin as gelling agent,” J. Am. Ceram. Soc. 90(3), 986–988 (2007).
[Crossref]

2006 (1)

E. Adolfsson, “Gelcasting of zirconia using agarose,” J. Am. Ceram. Soc. 89(6), 1897–1902 (2006).
[Crossref]

2005 (1)

I. Santacruz, M. I. Nieto, and R. Moreno, “Alumina bodies with near-to-theoretical density by aqueous gelcasting using concentrated agarose solutions,” Ceram. Int. 31(3), 439–445 (2005).
[Crossref]

1999 (1)

S. L. Morissette and J. A. Lewis, “Chemorheoloy of aqueous-based alumina-poly (vinyl alcohol) gelcoasting suspensions,” J. Am. Ceram. Soc. 82(3), 521–528 (1999).
[Crossref]

1997 (1)

M. Takeshita and S. Kurita, “Development of self-hardening slip casting,” J. Eur. Ceram. Soc. 17(2–3), 415–419 (1997).
[Crossref]

1991 (1)

O. O. Omatete, M. A. Janney, and R. A. Strehlow, “Gelcasting—a new ceramic forming process,” Am. Ceram. Soc. Bull. 70(10), 1641–1649 (1991).

Adolfsson, E.

E. Adolfsson, “Gelcasting of zirconia using agarose,” J. Am. Ceram. Soc. 89(6), 1897–1902 (2006).
[Crossref]

Dong, M. J.

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting and pressureless sintering of translucent alumina ceramics,” J. Am. Ceram. Soc. 91(5), 1700–1702 (2008).
[Crossref]

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting of alumina using epoxy resin as gelling agent,” J. Am. Ceram. Soc. 90(3), 986–988 (2007).
[Crossref]

Janney, M. A.

O. O. Omatete, M. A. Janney, and R. A. Strehlow, “Gelcasting—a new ceramic forming process,” Am. Ceram. Soc. Bull. 70(10), 1641–1649 (1991).

Kurita, S.

M. Takeshita and S. Kurita, “Development of self-hardening slip casting,” J. Eur. Ceram. Soc. 17(2–3), 415–419 (1997).
[Crossref]

Lewis, J. A.

S. L. Morissette and J. A. Lewis, “Chemorheoloy of aqueous-based alumina-poly (vinyl alcohol) gelcoasting suspensions,” J. Am. Ceram. Soc. 82(3), 521–528 (1999).
[Crossref]

Mao, X. J.

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting and pressureless sintering of translucent alumina ceramics,” J. Am. Ceram. Soc. 91(5), 1700–1702 (2008).
[Crossref]

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting of alumina using epoxy resin as gelling agent,” J. Am. Ceram. Soc. 90(3), 986–988 (2007).
[Crossref]

Moreno, R.

I. Santacruz, M. I. Nieto, and R. Moreno, “Alumina bodies with near-to-theoretical density by aqueous gelcasting using concentrated agarose solutions,” Ceram. Int. 31(3), 439–445 (2005).
[Crossref]

Morissette, S. L.

S. L. Morissette and J. A. Lewis, “Chemorheoloy of aqueous-based alumina-poly (vinyl alcohol) gelcoasting suspensions,” J. Am. Ceram. Soc. 82(3), 521–528 (1999).
[Crossref]

Nieto, M. I.

I. Santacruz, M. I. Nieto, and R. Moreno, “Alumina bodies with near-to-theoretical density by aqueous gelcasting using concentrated agarose solutions,” Ceram. Int. 31(3), 439–445 (2005).
[Crossref]

Omatete, O. O.

O. O. Omatete, M. A. Janney, and R. A. Strehlow, “Gelcasting—a new ceramic forming process,” Am. Ceram. Soc. Bull. 70(10), 1641–1649 (1991).

Santacruz, I.

I. Santacruz, M. I. Nieto, and R. Moreno, “Alumina bodies with near-to-theoretical density by aqueous gelcasting using concentrated agarose solutions,” Ceram. Int. 31(3), 439–445 (2005).
[Crossref]

Shimai, S.

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting and pressureless sintering of translucent alumina ceramics,” J. Am. Ceram. Soc. 91(5), 1700–1702 (2008).
[Crossref]

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting of alumina using epoxy resin as gelling agent,” J. Am. Ceram. Soc. 90(3), 986–988 (2007).
[Crossref]

Shimai, S. Z.

Y. Yang, S. Z. Shimai, and S. W. Wang, “Room-temperature gelcasting of alumina by a water-soluble co-polymer,” J. Mater. Res., DOI: .
[Crossref]

Strehlow, R. A.

O. O. Omatete, M. A. Janney, and R. A. Strehlow, “Gelcasting—a new ceramic forming process,” Am. Ceram. Soc. Bull. 70(10), 1641–1649 (1991).

Takeshita, M.

M. Takeshita and S. Kurita, “Development of self-hardening slip casting,” J. Eur. Ceram. Soc. 17(2–3), 415–419 (1997).
[Crossref]

Wang, S. W.

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting and pressureless sintering of translucent alumina ceramics,” J. Am. Ceram. Soc. 91(5), 1700–1702 (2008).
[Crossref]

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting of alumina using epoxy resin as gelling agent,” J. Am. Ceram. Soc. 90(3), 986–988 (2007).
[Crossref]

Y. Yang, S. Z. Shimai, and S. W. Wang, “Room-temperature gelcasting of alumina by a water-soluble co-polymer,” J. Mater. Res., DOI: .
[Crossref]

Yang, Y.

Y. Yang, S. Z. Shimai, and S. W. Wang, “Room-temperature gelcasting of alumina by a water-soluble co-polymer,” J. Mater. Res., DOI: .
[Crossref]

Am. Ceram. Soc. Bull. (1)

O. O. Omatete, M. A. Janney, and R. A. Strehlow, “Gelcasting—a new ceramic forming process,” Am. Ceram. Soc. Bull. 70(10), 1641–1649 (1991).

Ceram. Int. (1)

I. Santacruz, M. I. Nieto, and R. Moreno, “Alumina bodies with near-to-theoretical density by aqueous gelcasting using concentrated agarose solutions,” Ceram. Int. 31(3), 439–445 (2005).
[Crossref]

J. Am. Ceram. Soc. (4)

E. Adolfsson, “Gelcasting of zirconia using agarose,” J. Am. Ceram. Soc. 89(6), 1897–1902 (2006).
[Crossref]

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting and pressureless sintering of translucent alumina ceramics,” J. Am. Ceram. Soc. 91(5), 1700–1702 (2008).
[Crossref]

X. J. Mao, S. Shimai, M. J. Dong, and S. W. Wang, “Gelcasting of alumina using epoxy resin as gelling agent,” J. Am. Ceram. Soc. 90(3), 986–988 (2007).
[Crossref]

S. L. Morissette and J. A. Lewis, “Chemorheoloy of aqueous-based alumina-poly (vinyl alcohol) gelcoasting suspensions,” J. Am. Ceram. Soc. 82(3), 521–528 (1999).
[Crossref]

J. Eur. Ceram. Soc. (1)

M. Takeshita and S. Kurita, “Development of self-hardening slip casting,” J. Eur. Ceram. Soc. 17(2–3), 415–419 (1997).
[Crossref]

Other (1)

Y. Yang, S. Z. Shimai, and S. W. Wang, “Room-temperature gelcasting of alumina by a water-soluble co-polymer,” J. Mater. Res., DOI: .
[Crossref]

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Figures (11)

Fig. 1
Fig. 1

Structural formula of a water soluble co-polymer.

Fig. 2
Fig. 2

Effect of Isobam on Zeta potential of alumina slurry.

Fig. 3
Fig. 3

Viscosities vs Isobam content for the slurries with 40 vol% solids.

Fig. 4
Fig. 4

Rheological flow curves of slurries with different solid loadings (0.5wt% Isobam).

Fig. 5
Fig. 5

Storage and loss modulus of alumina slurry (42vol% solid loading, 0.5wt% Isobam).

Fig. 6
Fig. 6

TG behavior of alumina green body.

Fig. 7
Fig. 7

Intrusion volume versus pore diameter of pre-sintered body.

Fig. 8
Fig. 8

Microstructure of the presintered green body.

Fig. 9
Fig. 9

Translucent alumina (1850 °C × 5h, 1mm thick).

Fig. 10
Fig. 10

Transmittance of translucent alumina (1mm thick).

Fig. 11
Fig. 11

Fracture surface of translucent alumina (1850 °C × 5h).

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