FORM 04

Ceramic Plates

Flat plates and substrates where flatness, insulation and wear resistance decide the part.

Advanced Industrial Ceramics

On a plate the critical dimension is rarely the length or the width — it is flatness, and over what area it has to hold. A plate that is flat over its whole face is a different part from one that is flat only where something seals against it.

Holes, slots and edge treatment are cut or formed before firing, so their positions and the thickness tolerance are fixed early. Both are easier to hold when they are agreed before the tooling is made.

Specification and control points

Specification and control points
Material system	Alumina · Silicon carbide · Silicon nitride
Thickness	To drawing, with tolerance stated
Flatness	Stated, and the area over which it applies
Length and width	To drawing
Features	Holes, slots, counterbores, reliefs
Edges	As-fired · Ground · Chamfered
Surface	As-fired · Precision ground · Lapped

Three long white alumina bars on a grey studio ground, each with a row of U-shaped notches cut along one edge.

FORM 04Alumina bars with profiled edge notches — supplied part photograph

Part photographs

Ceramic Plates parts photographed

Supplied photographs for this catalogue entry. Captions describe the geometry in each frame — ask us for drawings and grades with your enquiry.

Bars with profiled edge notches

Two rectangular white alumina plates: one carries milled slots on its face, the other edge slots and two large bores.

Slotted plates with bores

Two tapered white alumina plates pierced by rows of small holes and radial slots, on a grey studio ground.

Tapered perforated plates

Five thin white zirconia bars with a raised rib along one edge and three holes, laid out in rows on a grey studio ground.

Zirconia bars, ribbed with three holes

Five zirconia strips on a grey studio ground, carrying drilled holes and, on two of them, rows of elongated slots.

Zirconia bars with holes and slots

Two long dark zirconia bars on a light ground, each with a lengthwise groove and drilled holes near both ends.

Black zirconia bars, grooved

A single thin zirconia bar on a grey studio ground, with a lengthwise groove and two holes near the ends.

Zirconia bar with a lengthwise groove

Zirconia comb bars

Four zirconia rails on a grey studio ground, each with a raised lip along one edge and two feet cut into the opposite edge.

Zirconia rails with a lip and feet

A silicon nitride bar on a white ground with two large bores through the flat section and a tapered tongue at one end.

Silicon nitride bar with a tapered tongue

A square silicon nitride plate on a white ground, drilled with a grid of thirty-six holes.

Silicon nitride plate with a hole grid

A square silicon nitride plate with chamfered corners and four counterbored holes, photographed on a white ground.

Silicon nitride plate with four counterbores

Two white ribbed plates on a grey studio ground, each cut with a dense row of fine vertical ribs and drilled with two bores through the solid end margin.

Ribbed carrier plates with end bores

Tooth-profile plates, four variants

A single white plate on a grey studio ground, one half solid and the other cut into a dense row of fine parallel ribs.

Rib plate with a solid header

A large white plate on a grey studio ground with a U-shaped slot cut into its upper edge and a shallow raised frame across the body.

Plate with a U-slot and a raised frame

Four white bars stacked in pairs on a grey studio ground, each bar carrying a row of small oval slots and three round bores.

Bars with oval slots

Two white plaques on a grey studio ground, each drilled with four corner bores and a larger central bore, and carrying a faint circular mark.

Plaques with a five-hole pattern

A close view of several white ribbed plates on a grey studio ground, showing the fine parallel rib pattern across the face.

Ribbed plates, close view

Tooth-profile plates, pair

A white plate on a grey studio ground with a stepped and chamfered end carrying four bores, and a shallow circular mark on the body.

Stepped plate with four bores

A long white bar on a grey studio ground with a row of fine saw teeth along one edge and three oval slots through the body.

Saw-tooth bar with three slots

Perforated E-profile plates

Three white plates on a grey studio ground, each carrying a shallow concentric circular recess and a pair of small bores.

Plates with circular recesses

A white plate on a grey studio ground cut along its lower edge into a dense row of fine slots, with three bores through the solid upper margin.

Comb plate with fine slots

Two thick rectangular black silicon carbide slabs on a white ground, photographed at an angle with their broad faces upward.

Silicon carbide ceramic slabs, as-fired faces

Typical applications

Applications this form is specified for

The industries below are the applications this material system is most often specified for. Tell us your own duty and we will confirm whether it is the right grade.

Insulating bases and substratesWear plates and linersThermal barriers and shieldsFixture and tooling platesSensor and element mounting plates

Made to your requirement

What is defined with you before production

Flatness value and the area it applies to
Thickness and its tolerance
Hole and slot positions, with their own tolerances
Which face is the functional face

Supply stage

Sample part first, then batch production on the same material and process basis. Ask for the material data sheet with your quotation.

Request a Quote

Forms and materials to compare

Material comparison

Al₂O₃

Alumina Ceramics

High-purity alumina for insulation, high-temperature containment and structural duty where strength and electrical isolation have to hold at the same time.

Material details

Si₃N₄

Silicon Nitride Ceramics

Silicon nitride for strength at temperature: high strength, thermal shock resistance and low weight in parts that move or cycle.

Material details

FORM 05

Ceramic Rings

Ground rings and sealing elements for assemblies that must hold a bore or a face at temperature.

Material details

Ceramic Plates

Ceramic Plates parts photographed

Applications this form is specified for

What is defined with you before production

Forms and materials to compare

Alumina Ceramics

Silicon Nitride Ceramics

Ceramic Rings

Talk to us about ceramic plates