Zircoa, Inc., the Zirconium Oxide Expert! Zircoa, Inc., the Zirconium Oxide Expert!

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Zircoa, Inc., the Zirconium Oxide Expert!

Contact a Product Specialist
USA Worldwide:  Tim A. Leitzel | tleitzel@zircoa.com | (440)349-7216 | 440-248-8864 (Fax)
Europe, the Middle East & Africa:  Thomas Böhm | thomas.boehm@rhi-ag.com | +49-611-7335-397 |
+49-611-7335-558 (Fax)
  Re-visit this Website content at: www.zircoa.com/bricks

Refractory Brick for Insulation and Glass Contact

Zircoa Tongue and Groove Refractory BrickZirconium Oxide Compositions Engineered for Mortar-free and Self-supporting Structures in High Temperature Cycling Environments

Calcia or Yttria stabilized Zirconium Oxide pressed or tongue and groove bricks stand-up to temperatures of 2000°C and beyond. Compositions are engineered to satisfy your specific insulating or melting requirements and deliver long-term service. Markets served include: quartz and laser crystal growth, glass, refractory metals, carbon black and high temperature furnaces.

For more detailed information on the unique properties of Zirconium Oxide (A Grain Zirconia, ZrO2) please visit our Solutions page: www.zircoa.com/solutions, or contact a product specialist to discuss your specific needs.

Zircoa Standard Refractory BrickBricks

Standard zirconia bricks (left) are used primarily for custom high-temperature furnace linings, supports and heat shields. Zircoa’s standard bricks withstand operating temperatures greater than 2000°C (3630°F) with capacity to spare. Quartz melting and synthetic crystal growing are typical applications. Standard brick sizes are listed below.

Tongue and Groove Bricks

Zircoa’s tongue and groove bricks (shown at top) are designed for the building of self-supporting structures. Their design and calcia or yttria stabilized zirconia composition makes them ideal for high temperature cycling* environments.

Using Zircoa’s tongue and groove brick eliminates line of sight radiation, and adds physical stability to the structure. Rings and circles, with an ID as small as 6" can be achieved. Applications include heat shields, furnace roofs and linings.

* Controlled heat-up and cool-down are important for long life.

Ring Calculator - Our online calculator (www.zircoa.com/t&g.ring) can help you determine the quantity of Zircoa 2" high arch and straight tongue and groove bricks required to construct 6" to 72" diameter rings.

Heat Transfer of Pressed Brick
(Composition 1651)

Dense Brick — 4.45 g/cm3 (278 lbs./ft.3)
Hot Face — 5 hours exposure at 1980°C (3600°F)
51 mm (2") 
Thick Brick
Hot Face Cold Face Cold Face Grog
No grog backup 1980°C (3600°F) 704°C (1300°F) — —
26mm (1")
grog backup
1980°C (3600°F) 1149°C (2100°F) 538°C (1000°F)
51mm (2")
grog backup
1980°C (3600°F) 1371°C (2500°F) 427°C (800°F)

Standard Brick Sizes
(Composition 1651, 1968, 2290, 3002 & 3004)

Brick Dimensions (approximate)
25mm (12") straight 305 x 153 x 25mm (12" x 6" x 1")
19mm (3/4") split 305 x 153 x 19mm (12" x 6" x 3/4")
64mm (9") straight 230 x 114 x 64mm (9" x 4-1/2" x 2-1/2")
51mm (2") split 230 x 114 x 51mm (9" x 4-1/2" x 2")
32mm (1-1/4") split 230 x 114 x 32mm (9" x 4-1/2" x 1-1/4")
19mm (3/4") split 230 x 114 x 19mm (9" x 4-1/2" x 3/4")
13mm (1/2") split 230 x 114 x 13mm (9" x 4-1/2" x 1/2")

Physical Properties
of Various Zirconia Compositions

Composition 1968 1651 872 871 890 2290 3004
Stabilizer CaO
(a)
CaO
(a)
CaO
(a)
CaO
(a)
Y2O3
(b)
Y2O3
(b)
MgO
(c)
Bulk Density (g/cm3) 3.3 4.2 4.1 3 4 4.5 4.6
Porosity (%) 35 25 30 40 29 23 16
Modulus of Rupture (psi) 450 2,400 1,100 800 1300 2400 3500
Coefficient of Thermal Expansion
RT-1300°C (in/in/°C)
8.2 7.3 8 7.9 9.4 5.9 2.3
Thermal Conductivity (W/m-°K) 800°C 0.68 1.2 1.2 0.52 1 1.2 1.4

a. calcia    b. yttria    c. magnesia

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 (www.zircoa.com/grog).

Zircoa Backup 1859 — Partially stabilized with magnesia and calcia. Available in -8+100, -8+14, -14+28, -28+48 and -48+100 Tyler mesh sizes.

Zircoa Backup 3001 — Partially stabilized with magnesia. Available in -8+14 Tyler mesh size.

Zircoa Backup 0125 — Monoclinic zirconia, not stabilized. Available in -8+14 Tyler mesh size.

Zircoa Backup 10B – Calcia stabilized bubble zirconia. Available in -10+30 Tyler mesh size.

Zircoa Grog 1593 — Magnesia stabilized. Available in -14+28, -28+48, -48+100, -100+325 and -325 Tyler mesh sizes.

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NOTICE: Recommendations, property values, and application information we publish are based on various sources including measurements by us and others, and estimates of experience. We intend this to be a reliable guide, but we do not guarantee the applicability, completeness, or accuracy of the information. Users should make their own tests to determine the suitability of any product for their application.

Entire contents © 1999 - 2008, Zircoa, Inc.

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Contact a Product Specialist

USA Worldwide:

Tim A. Leitzel
(440)349-7216
(440)248-8864 (Fax)
Online form

Europe, the Middle East and Africa:

Thomas Böhm
+49-611-7335-397
+49-611-7335-558 (Fax)
Online form

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MSDS for Zircoa Refractory Brick and Backup

Follow the composition number links for the corresponding MSDS.

Composition 10B
Composition 871
Composition 872
Composition 890
Composition 0125
Composition 1593
Composition 1651
Composition 1859
Composition 1968
Composition 2290
Composition 3001
Composition 3002
Composition 3004