Gas Turbine Alumina-Mullite Bricks

Gas Turbine Combustion Chamber Refractory Lining | STA Commerce
Power-Generation Refractory Solutions

Gas Turbine Combustion Chamber Refractory Lining

High-alumina alumina-mullite ceramic heat-shield bricks designed to protect gas turbine combustion chamber metal bodies from severe heat, abrasion, chemical exposure and repeated thermal cycling.

1200–1300°C Combustion chamber temperature range stated for this application
Alumina-Mullite High-alumina ceramic lining material for heat-shield applications
Gas turbine combustion chamber ceramic heat-shield bricks and installation

Thermal Protection for the Metallic Chamber Body

Gas turbine combustion chambers operate under intense thermal loading. Temperatures in the range of approximately 1200–1300°C can seriously damage the metallic chamber body if the hot face is not protected by a suitable refractory lining.

Shaped ceramic bricks are installed as an inner heat-shield layer. Their function is to reduce direct heat transfer to the metal, maintain lining integrity under repeated start-and-stop cycles and resist abrasion caused by high-velocity combustion gases.

Thermal protection of the metallic chamber shell
Resistance to repeated heating and cooling cycles
Resistance to abrasion from high-velocity gases
Custom shapes manufactured to chamber drawings
Installation of ceramic refractory bricks inside a gas turbine combustion chamber

Key Demands on Combustion Chamber Refractories

The refractory lining must maintain its protective function despite simultaneous thermal, mechanical and chemical stresses.

High Temperature Exposure to combustion gases in the approximate range of 1200–1300°C.
Thermal Cycling Repeated turbine startup, shutdown and load changes generate thermal shock.
Gas Abrasion High-velocity combustion gases can erode exposed refractory surfaces.
Chemical Stability The lining should remain stable in the applicable combustion and hydrogen-containing atmosphere.

High-Alumina Alumina-Mullite Ceramic Bricks

The shaped ceramic bricks are used as replaceable heat-shield elements along the inner surface of the combustion chamber.

Alumina-mullite ceramic heat-shield bricks for gas turbine combustion chambers
Reference Grade: MEHR.ALUM.90A

Alumina-Mullite Brick

A high-alumina refractory brick intended for ceramic heat-shield service in gas turbine combustion chambers. The product is supplied in shaped segments matching the geometry of the chamber lining.

Typical Characteristics
High-alumina alumina-mullite composition
Superior resistance to thermal shock
Good resistance to high-temperature abrasion
Good chemical resistance under suitable service conditions
Stability in applicable hydrogen-containing atmospheres
Custom geometry based on approved technical drawings
Main Application
Ceramic heat shield for gas turbine combustion chambers

Product Classification and Function

Item Classification Primary Function Main Service Requirements
Reference Grade MEHR.ALUM.90A Identifies the referenced alumina-mullite refractory quality. Final compatibility must be confirmed against the turbine model and technical drawings.
Material Type High-Alumina Alumina-Mullite Brick Forms the replaceable ceramic lining inside the combustion chamber. Thermal shock, abrasion and chemical stability.
Application Ceramic Heat-Shield Segment Protects the metallic chamber body from direct exposure to high-temperature gases. Accurate shape, secure installation and stable performance under cyclic operation.
Technical note: The source material refers to applications associated with V93.1 and V94.2 gas turbine power plants. Compatibility must not be assumed solely from the turbine designation. Brick dimensions, fixing details, material properties and operating conditions must be reviewed before supply.

Typical Areas of Use

Combustion Chamber Inner Lining

Ceramic brick segments forming the protective inner layer between the hot gases and the chamber shell.

High-Heat Transition Zones

Shaped lining elements for locations exposed to concentrated heat flux and repeated thermal cycling.

Replacement Heat-Shield Segments

Custom-manufactured bricks for maintenance and replacement of worn combustion chamber lining sections.

Information Needed for Technical Selection

The refractory shape and material quality must be selected according to the turbine design and actual operating conditions.

Gas turbine manufacturer, model and unit designation
Combustion chamber and refractory-segment drawings
Brick dimensions, curvature and fixing details
Normal and maximum operating temperature
Fuel type and combustion-atmosphere information
Thermal cycling and gas-velocity conditions
Required quantity and replacement schedule
Destination country and required documentation

Request a Gas Turbine Combustion Chamber Refractory Quotation

Send us the turbine model, approved drawings, brick dimensions, operating conditions, required quantity and destination country for technical and commercial review.

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