Fused Zirconia Mullite

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Fused Zirconia Mullite Specification

Melting Point
Approximately 1850-1900C

Surface Finish
Smooth/Granular depending on form

Form
Solid (Block, brick, granular, powder)

Density
3.1 Gram per cubic centimeter(g/cm3)

Chemical Composition
ZrO: 33-35%, AlO: 45-46%, SiO: 18-20%

Purity(%)
99%

Hardness (%)
High

Application
Refractory lining, kiln furniture, glass furnace, metallurgy, ceramics

Usage & Applications
Steel, glass, ceramics, cement, and petrochemical industries as insulating refractory material

Water Absorption
<1%

Product Type
Fused Zirconia Mullite

Types of Refractories
Special Refractory

Shape
Block, brick, granular, powder

Porosity
Low

Dimensional Stability
Excellent at high temperatures

Strength
High mechanical strength, resistant to thermal shock

Specific Gravity
3.2-3.4 g/cm

Thermal Conductivity
Low thermal conductivity

Color
White to off-white

About Fused Zirconia Mullite

Process of Production

FZM is manufactured from fusing high quality Bayer process alumina and zircon sand in electric arc furnace, During melting, the zircon and alumina react to yield a mixture of mullite and zirconia.
It is composed of large needle-like mullite crystals containing co-precipitated monoclinic ZrO₂

Application :

It is used in specialty product applications where a high resistance to environmental corrosion and a low coefficient of thermal expansion are desirable properties.
Applications include ceramic pressure casting tubes and refractory shapes requiring resistance to molten slag and molten glass.
Zir-mull bricks and bricks used in the Glass Industry as well as an additive in Continuous casting refractories.

Technical Specification :

Items			Unit	Index	Typical
Chemical composition	AI₂O₃		%	41.00-46.00	44.68
	ZrO₂		%	35.00-39.00	36.31
	SiO₂		%	1650-20.00	17.13
	Fe₂O₃		%	0.20 max	0.09
Bulk Density			G/cm³	3.6 min	3.64
Apparent Porosity			%	3.00max
Phase		3AI₂O_3.2SiO₂	%	50-55
		Indined ZrSiO₂	%	30-30
		Corundum	%	5.00 max
		Glass	%	5.00 max

Superior Resistance for Industrial Applications

Fused Zirconia Mullite offers outstanding resistance to corrosion and slag, making it a preferred choice for industries such as steel, glass, ceramics, cement, and petrochemicals. Its high mechanical strength and resistance to thermal shock ensure longevity and reliability even under the most extreme conditions, providing added value to users.

Customizable Specifications and Forms

With grain sizes tailored from 0 to 50mm and forms including blocks, bricks, granules, and powders, Fused Zirconia Mullite adapts to specific project needs. Available in various packaging options, including 25kg bags and 1-ton jumbo bags, it seamlessly fits both large-scale and niche industrial requirements.

Optimal Performance and Easy Storage

Engineered for low thermal conductivity and minimal thermal expansion, this material maintains dimensional stability at high temperatures. Storage is straightforwardkeep dry to preserve quality. Its high purity and smooth or granular surface finish make it both versatile and robust for multiple industrial applications.

FAQs of Fused Zirconia Mullite:

Q: How should Fused Zirconia Mullite be stored to maintain its quality?

A: It is essential to store Fused Zirconia Mullite in dry conditions to prevent moisture uptake and maintain both its structural integrity and performance.

Q: What industries commonly use Fused Zirconia Mullite and why?

A: Industries including steel, glass, ceramics, cement, and petrochemicals utilize Fused Zirconia Mullite for its exceptional corrosion resistance, low thermal conductivity, and high thermal shock resistance, making it ideal for insulating refractory applications.

Q: When is it beneficial to use Fused Zirconia Mullite instead of regular refractory materials?

A: Fused Zirconia Mullite is especially advantageous in environments where high temperatures, corrosive slag, or intense mechanical stress occur, such as glass furnaces or steel ladles, due to its superior longevity and stability.

Q: Where can Fused Zirconia Mullite be applied within industrial settings?

A: It is commonly used in refractory linings, kiln furniture, glass furnace components, and any situation that demands materials capable of withstanding elevated temperatures and aggressive operating conditions.

Q: What customizable options are available for Fused Zirconia Mullite?

A: The grain size can be tailored from 0 to 50mm, and it is available in several solid forms such as blocks, bricks, granules, or powder to suit various industrial processes and installations.

Q: How does the low thermal expansion of Fused Zirconia Mullite benefit end users?

A: Its low linear thermal expansion ensures excellent dimensional stability at high temperatures, reducing the risk of cracks or deformations and thereby enhancing performance and service life.

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