Cerámica técnica — historia, estructura, propiedades y usos

Datos clave

Al2O3, ZrO2, SiCStars

A1, extreme TFire

AlN high / TBC zirconia lowK

No yieldBrittle

Spark plug / TBCIcon

ceramicsFamily

Cerámica técnica is one of 32 materials in this atlas, grouped under ceramics: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.

Scores compare Cerámica técnica with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.

Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.

Introducción profunda

Deep dive: Cerámica técnica

Cerámica técnica (Al2O3, ZrO2, SiC, Si3N4…) is a family of grades whose density 3.2–6 g/cm³ class, heat band often >2000 °C, and fire letter A1.

What “the material” actually is

Cerámica técnica is sold as grades, not as a single substance. Chemistry Al2O3, ZrO2, SiC, Si3N4…, density 3.2–6 g/cm³ class, heat band often >2000 °C.

This atlas treats Cerámica técnica as a system: mill route, coatings, tests and the cavity it sits in.

Heat, fire and insulation

Conductivity note: Al2O3 ~20–30; AlN higher; ZrO2 low. Insulation score 46/100 is relative to 32 entries — metals lose, VIPs and aerogels win.

Fire letter in editorial use: A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.

How it is made and used

Origin: 20th c. spark plugs / WWII carbides, Germany / US / Japan. The process chapter follows feedstock → conversion → forming → finish → install.

Uses span buildings to defence / safety. Pairings matter: glass.

Market and circularity

Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.

Circularity mark 44/100. Ask which scrap, which certificate, which year.

Perfil

Resistencia 80

Resistencia al calor 96

Prestación al fuego 94

Aislamiento 46

Trabajabilidad 22

Circularidad 44

Preguntas frecuentes

Is Cerámica técnica non-combustible?

Declared reaction class in this atlas: A1. Assemblies still need resistance tests.

Does Cerámica técnica insulate?

Thermal mark 46/100 versus the atlas. Conductivity note: Al2O3 ~20–30; AlN higher; ZrO2 low.

What is the density band?

3.2–6 g/cm³ class

How is it made?

Origin story: 20th c. spark plugs / WWII carbides (Germany / US / Japan).

Can it be recycled?

Circularity mark 44/100 — editorial, route-specific.

Typical melting or failure heat?

often >2000 °C

What should it be paired with?

glass: Amorphous silicate vs crystalline engineering body.

Where is it specified?

Buildings, transport, energy and consumer goods — see the uses chapter.

Iconos

Spark plug insulator

Global · 1920s–

Spark plug insulator is a reference point in the public image of Cerámica técnica.

WC-Co insert

Germany · 1920s–

WC-Co insert is a reference point in the public image of Cerámica técnica.

YSZ TBC

Global · 1990s–

YSZ TBC is a reference point in the public image of Cerámica técnica.

Alumina hip

Europe · 1970s–

Alumina hip is a reference point in the public image of Cerámica técnica.

SiC MOSFET

Global · 2010s–

SiC MOSFET is a reference point in the public image of Cerámica técnica.

Kiln furniture

China / UK · historic

Kiln furniture is a reference point in the public image of Cerámica técnica.

Ceramic knife

Japan · 1980s–

Ceramic knife is a reference point in the public image of Cerámica técnica.

MLCC barium titanate

Japan · 1950s–

MLCC barium titanate is a reference point in the public image of Cerámica técnica.

Activa o desactiva iconos: cada barra se reescala al líder de tu selección.

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Enfrentamientos

Misma familia, otras notas — elige un duelo.

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Cerámica técnica vs Vidrio

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Materiales similares

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💎Cerámica técnica

Datos clave