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Home Products Zirconia and alumina-zirconia-mullite crucibles

Zirconia and alumina-zirconia-mullite crucibles

Zirconia Crucibles for Consistent, High Temperature Melting:

Zirconia Crucibles Engineered for Increased Foundry Productivity at Temperatures up to 1900°C and Beyond:

Zirconium Oxide Crucibles deliver cleaner melts at temperatures up to 1900°C and beyond. They are engineered for the melting of superalloys and precious metals and deliver heat-up and cool-down schedules that keep your foundry productive. For immediate delivery, we inventory the most common crucible sizes, with configurations to suit your particular needs. Markets served include: Aerospace, Power Generation, Medical, Precious Metals and Dental.

For Even Longer Crucible Life:

Zirconium Oxide (ZrO2, A Grain Zirconia) is one of the best commercially available insulating materials. It has approximately 5 times the insulating value of alumina or magnesia. Using 1859 or 3001 Crucible Backup will extend crucible life and result in cleaner melts.

Specifications:

Typical Chemical Analysis:

Element

Compositions

Crucible Backup

3001

1651

2004

2290

1859

3001

SiO2

1.5

0.4

27.0

0.3

0.6

1.2

CaO

0.2

3.1

0.3

0.3

4.5

0.2

MgO

2.7

0.4

0.2

0.1

4.5

2.2

Fe2O3

0.1

0.1

0.2

0.1

0.2

0.2

Al2O3

0.8

0.4

0.5

0.3

0.25

0.7

TiO2

0.1

0.1

0.2

0.1

0.2

0.2

Y2O3

- - -

- - -

- - -

5.2

- - -

- - -

ZrO2

94.6

95.5

71.6

93.6

89.75

95.3


Physical Properties:

Compositions

Backup Sizing

3001

1651

2004

2290

1859

3001

Density

4.6g/cc

4.2g/cc

3.6g/cc

4.5g/cc

-8+100

Tyler

mesh

Size

-8+28

Tyler

mesh

Size

Porosity

18%

25%

16%

23%

MOR

@R.T.

3500psi

2400psi

4300psi

2400psi


Refractory Backup (Thermal Insulation):

Extend the life of your furnace, and maintain tighter control over your furnace temperatures with Zircoa’s pre-sintered grog refractory backup .

  • Zircoa Backup 1859 — Partially stabilized with magnesia and calcia. Available in -8+100 Tyler mesh size.
  • Zircoa Backup 3001 — Partially stabilized with magnesia. Available in -8+28 Tyler mesh size.