High-Temperature Refractory Lining

High Temperature Refractory Solutions Engineered for Sustained Extreme Performance

At extreme temperatures, the material between your process and failure is everything. Furnace linings that can’t sustain structural integrity, crucibles that introduce contamination, or nozzles that degrade under thermal stress — each failure mode carries real operational and quality costs. Zircoa engineers high temperature refractory lining systems and components from zirconium oxide for applications in quartz processing, glass melting, crystal growth, carbon black production, metal powder atomization, and beyond.

Learn more about product solutions for these processes below, or get in touch with our experts to discuss project specifics.

Why Zirconia for High-Temperature Refractory Applications

Zirconia’s ability to withstand sustained temperatures up to and exceeding 2000°C — while delivering up to five times the thermal insulating value of alumina or magnesia — makes it the material of choice when furnace performance depends on what’s lining the walls, containing the melt, or controlling the flow. Its low thermal conductivity preserves process heat rather than absorbing it, and its exceptional thermal shock resistance enables reliable performance through repeated heating and cooling cycles that would fracture less capable materials. Zircoa engineers these properties into every form factor the refractory lining process demands, from structural brick and cast-in-place materials to precision crucibles and atomization nozzles.

Zirconia Products for High-Temperature Refractory Lining

A Grain Zirconia Powder

When your refractory feedstock or ceramic process requires a high-purity, chemically consistent zirconia powder with controlled particle properties, A Grain's proprietary spheroidal shape and 99.6% purity provide the foundation your formulation depends on.

$refractory bricks$

Brick

When standard refractory materials fail to hold structure or insulate effectively at temperatures exceeding 2000°C, Zircoa's engineered zirconia brick — available in standard and tongue-and-groove configurations — delivers the thermal barrier and structural integrity your furnace requires.

$castable refractory$

Castable

When your furnace geometry, field repair requirements, or unique application configuration can't be served by pre-formed shapes, Zircoa's castable refractory materials allow you to form custom insulating structures on-site with the same thermal performance as fired zirconia components.

Coarse Grain Tubes

When induction heating, crystal growth, or non-reactive high-temperature firing demands a tube material that won't fail under aggressive thermal cycling, Zircoa's coarse grain zirconia tubes provide the sustained performance and compositional purity your process requires.

$refractory lining$

Custom Shapes

When standard brick configurations can't address your furnace geometry or application-specific requirements, Zircoa's pre-formed, pre-sintered custom refractory shapes are engineered to your exact specifications — delivering fit, function, and thermal performance that standard products cannot.

$refractory insulation$

Granular Zirconia (GROG)

When your refractory system needs a reliable, thermally stable backup material to extend furnace life and improve temperature control behind the hot face, GROG provides the high-purity zirconia insulation your system design calls for.

Setter Plates And Discs

When kiln furniture reacts with or contaminates the electronic components you're firing at temperatures above 1300°C, Zircoa's zirconia setter plates provide the chemical inertness and dimensional stability to protect your parts through every thermal cycle.

Zirconia Crucibles

When standard crucibles wear prematurely, introduce impurities, or can't sustain the temperatures required for superalloys, precious metals, and other demanding melt applications, Zircoa's zirconia crucibles provide cleaner melts, longer life, and the thermal efficiency your operation depends on.

Your Process. Our Expertise.

Zircoa has engineered high temperature refractory solutions since 1952, and our application specialists work directly with your team to identify the right combination of materials, forms, and compositions for your specific operating environment. Whether you’re designing a new furnace system or solving a recurring failure in an existing one, we bring the material science and manufacturing capability to get it right.

High-Temperature Refractory Lining

Why Zirconia for High-Temperature Refractory Applications

Zirconia Products for High-Temperature Refractory Lining

A Grain Zirconia Powder

Brick

Castable

Coarse Grain Tubes

Custom Shapes

Granular Zirconia (GROG)

Setter Plates And Discs

Zirconia Crucibles

Your Process. Our Expertise.

Zircoa: Delivering What Matters. Let’s Talk Solutions.

Zircoa Inc.

High-Temperature Refractory Lining

Home | High-Temperature Refractory Lining

Why Zirconia for High-Temperature Refractory Applications

Zirconia Products for High-Temperature Refractory Lining

Your Process. Our Expertise.

Zircoa: Delivering What Matters. Let’s Talk Solutions.

Zircoa Inc.