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Structural Ceramics

Industrial Structural Ceramics

Aluminum nitride (AlN) substrate. Provided with or without surface metallization.

Industrial structural ceramics are passive (non-electrified) advanced material ceramic components that are used in a variety of applications. Their resistance to wear, thermal stability, and resistance to corrosion make the application of ceramic components an ideal choice for many industrial uses, including thermal or electrical insulators. Fralock provides structural ceramics fabricated with material compositions including alumina, glass, quartz, and aluminum nitride.

Alumina and AlN
Our Alumina and AlN structural ceramics are custom fabricated with high-precision green-to-fire processing systems. In this system we press powders and machine them into shape prior to firing to reduce manufacturing costs. As fired tolerances are greater than hard-grinding, critical surfaces can be stocked, lapped, ground or polished after firing to achieve tight dimensional flatness and surface finish requirements.

Industrial structural ceramics are passive (non-electrified) advanced material ceramic components that are used in a variety of applications. Their resistance to wear, thermal stability, and resistance to corrosion make the application of ceramic components an ideal choice for many industrial uses, including thermal or electrical insulators. As a structural ceramics manufacturer, Fralock provides structural ceramics fabricated with material compositions including alumina, glass, quartz, and aluminum nitride.

Alumina and AlN

Our Alumina and AlN structural ceramics are custom fabricated with high-precision green-to-fire processing systems. In this system we press powders and machine them into shape prior to firing to reduce manufacturing costs. As fired tolerances are greater than hard-grinding, critical surfaces can be stocked, lapped, ground or polished after firing to achieve tight dimensional flatness and surface finish requirements.

Industrial Structural Ceramics
Aluminum nitride (AlN) substrate. Provided with or without surface metallization.
Structural Ceramic

Structural ceramic pins and end effector for semiconductor manufacturing

Fralock’s engineers can assist you in designing, prototyping, and manufacturing the right structural component your application.

Capabilities:

  • Alumina diameter up to 31” part size
  • Alumina thickness up to 3” (disk shape) or 12” height (cylinder shape)
  • AlN sizes up to 15” (381mm) round or square
  • AlN thicknesses to 0.800” (20mm)
  • Medical device ceramic casings
  • Green to Fire Alumina and Green-to-fire tolerances +/- 1.0%
  • Hard Grind to tolerances within 0.00002” (0.000508mm)
  • Surface metallization available
Alumina and AlN Ceramics Specifications
Material Name
Finished Sizes Inches Diameter
Green Machining Details
Purity
Fired Density g/cm3
Alumina
FR-960
0.5 to 8
Complex
96.0%
3.70
FR-975
0.5 to 8
Complex
97.5%
3.72
FR-980
7 to 27
Simple
98.0%
3.78
FR-980
0.5 to 8
Complex
98.0%
3.78
FR-995
1 to 30
Simple, complex
99.5%
3.85
FR-997-EM
1 to 30
Simple
99.7%
3.87-3.89
FR-997
1 to 30
Simple, complex
99.7%
3.88-3.90
FR-998
1 to 30
Simple, complex
99.8%
3.89-3.92
FR-999-LLTA
1 to 30
Simple, complex
99.9%
3.91-3.94
Aluminum Nitride
FR-AlN (3-YtO)
0.5 to 15
Simple, complex
99.9%
>3.24
Different Kinds of Alumina and AlN Ceramics

Ceramics

  • Alumina
  • Zirconia
  • Aluminum Nitride (AlN)
  • Silicon Nitride (SiN)
  • Boron Nitride (BN)
  • Silicon Carbide (SiC)
  • Macor
  • Shapel
  • Steatite
  • Mullite & Cordierite

Glass

  • Fused Quartz
  • Fused Silica
  • Sapphire
  • ULE / Zerodure (low CTE glasses)
  • Silicon
  • BK7 (optical glass)
  • Borosilicate
  • Germanium
  • Zerodur (glass ceramic)
  • Additional Glass Available
Semiconductor
Precision components in wafer fabrication equipment including wafer handling, (end effectors), lift pins, wafer chucks, shadow rings, high-temperature dome chambers, gas distribution nozzles.
Medical
Medical devices including valves, pumps, feedthroughs, pistons and cylinders for blood analysis equipment, dialysis machines, insulators for pacemaker applications, housings for implantable devices, CT scanning
Aerospace and Defense
Fuel management systems, thermal insulation, hermetic isolation chambers, hermetic packaging, vacuum tubes, vacuum relays, fuel atomizers, microwave devices.
Industrial, Electronics, Energy
Packaging, laser insulators, X-ray tubes, fluid bearings, firing trays, pressure reduction devices, submersible and wear resistant pumps and sensors, molten glass pumps, mass spectrometers, high voltage insulators, thermal energy storage, robotics.
Fluid Management System for Medical Applications
Fluid management system for medical applications

FR-995 Ceramic

A general-purpose high purity alumina ceramic material that offers excellent dielectric properties along with high compressive strength and good thermal insulation properties.

Features Include:

  • High Dielectric Strength
  • Metallizable for hermetic assemblies
  • High compressive strength
  • High volume resistivity
  • Enables making complex green machined components
Data Sheet

FR-997 Ceramic

FR-997 is a 99.7% pure alumina ceramic material, containing less than 500 ppm silica, intended for applications where excellent surface finishes and superior chemical corrosion resistance are required.

Features Include:

  • Excellent resistance to hydrofluoric acid attack
  • Resistant to Plasma Fluorine ion damage
  • Capable of thermal application temperatures up to 1,400°C
  • High compressive strength
  • No measurable interconnected porosity and a bulk density of >3.91 g/cm3
  • High volume resistivity
Data Sheet

FR-998 Ceramic

This is a 99.8% pure, high fired density, advanced alumina ceramic containing less than 300 ppm silica and 200 ppm soda. It is ideal for applications in which excellent surface finish, RF properties, and superior chemical corrosion resistance is required.

Features Include:

  • Excellent resistance to Hydrofluoric, Nitric, and Hydrochloric acids
  • Low soda content meets most semiconductor 99.8% Alumina specifications
  • Highly resistant to Plasma Fluorine damage
  • High volume resistivity and high dielectric strength
Data Sheet

FR-AIN-ST Ceramic

An advanced structural Aluminum Nitride ceramic made using high temperature liquid phase sintering. It is a fully dense, tan colored, structural ceramic capable of being made using near net shape and diamond grinding processes.

Features Include:

  • High thermal conductivity of 180 w/mK at 100°C; much higher below room temperature
  • Capable of withstanding heating and cooling rates >350°C per second
  • Precision green machining available to create complex near net shape components
  • Low soda content meets most stringent semiconductor equipment specifications
  • Excellent resistance to Fluorine plasma and Hydrofluoric acid
Data Sheet