Reference

Glossary of ceramics

52 terms gathered from across our articles — from the chemistry of firing to the vocabulary of the saleroom. Each links to the pieces where it appears.

A

Advanced ceramics

engineered ceramics designed for precise electrical, thermal, or biological performance

alumina

aluminium oxide blended with zirconia for Apple's signature white tone

always-on display

screen showing time continuously without requiring wrist movement

B

bioceramic

ceramic material biocompatible enough to bond with living bone tissue

Bioceramics

high-purity ceramics engineered for biocompatible use inside the human body

British Studio Ceramics

20th-century movement emphasising individual artistic expression over industrial pottery

brush washer

Small vessel used to rinse calligraphy or painting brushes

buyer's premium

Additional percentage fee charged to the winning auction bidder

C

carbide

hard ceramic compound of carbon and a metal, used in cutting tools

Appears inFired at Scale
case geometry

overall shape and profile of a watch case, affecting durability

ceramic art

Art made from clay and hardened by firing, spanning functional and sculptural forms

ceramic composites

engineered ceramic combinations outperforming metals in weight-critical applications

ceramic membrane

porous ceramic filter used in water treatment and separation processes

ceramics

Inorganic, non-metallic solids shaped and hardened by heat

chemical inertness

resistance to chemical reactions, preventing contamination or material degradation

coil-building

Hand-shaping clay by stacking and blending rope-like coils

contemporary ceramics

Present-day ceramic practice blurring craft, design, and fine art boundaries

E

earthenware

low-fire clay body, porous unless vitrified at higher temperatures

F

Ferrites

magnetic ceramic compounds used in inductors, transformer cores, and antennas

fired ceramic

clay-based material hardened by high-temperature kiln or furnace

Functional ceramics

ceramics that perform an active electrical or mechanical role

G

glass transition temperature

temperature at which a solid material shifts into a pliable, molten-like state

glaze

Glassy coating fused onto ceramic surfaces for sealing or decoration

glazing

Applying a glassy coating to clay, fired to create waterproof surface

H

heat shield

Ceramic barrier protecting spacecraft from extreme re-entry temperatures

I

ice-crackle

Fine network of surface cracks in ceramic glaze, prized decoratively

imperial ware

Ceramics produced exclusively for use by the Chinese imperial court

L

leather-hard

partially dried clay state, firm but still workable

M

monochrome glaze

Ceramic glaze of a single uniform colour

N

nanocomposites

materials engineered at molecular scale with particles under 100 nanometres

non-oxide ceramics

ceramics based on carbides, nitrides, or borides rather than oxides

Northern Song dynasty

Chinese imperial period approximately 960–1127 CE

O

oxide ceramics

ceramics composed of metal oxides, such as alumina or zirconia

P

particulate filter

Ceramic device trapping soot particles from diesel engine exhaust

phase transformation

change in a material's crystal structure used to enhance toughness

Piezoelectric ceramics

ceramics that convert mechanical stress into electrical signals and vice versa

plasticiser

additive that increases flexibility and workability in a film or polymer matrix

potter's wheel

Rotating disc enabling symmetrical, round vessel formation

pottery shards

Broken fragments of ancient fired clay vessels used in archaeological study

Q

quenching

rapid cooling of a material to lock in desired microstructural properties

R

Radome

protective ceramic housing enclosing a radar antenna on aircraft or ships

refractory

Heat-resistant ceramic material used to line furnaces and kilns

Ru ware

Rare Song dynasty imperial Chinese stoneware with blue-green glaze

S

sapphire glass

single-crystal aluminium oxide used for scratch-resistant display covers

sintering

heat-and-pressure process fusing ceramic powder into solid, dense form

strap lugs

case extensions where watch bands attach, helping absorb edge impacts

Superconductor

material conducting electricity with essentially zero electrical resistance

T

tape casting

technique spreading a thin ceramic slurry into uniform flat sheets using a precise blade

tempering

controlled reheating after quenching to reduce brittleness in a material

W

wedging

kneading clay to remove air bubbles before forming

Z

zirconia

zirconium dioxide ceramic powder sintered into hard, dense watch cases