Refractory Ceramic Material Based on La2O3 and Process for Its Preparation

Publication: DE102020006598A1
Published: 2022-04-28
Family Size: 1
Granted: No

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a metal-free ceramic refractory material based on lanthanum oxide (La2O3), containing at least 10% La2O3 phases and a coarse-grained portion (grain size between 100 µm and 20 mm) making up more than 30% of the composition. The ceramic is made by mixing La2O3-containing coarse grains with ceramic material, molding, and then sintering at high temperatures above 800°C. The resulting material is suitable for producing shaped or unshaped components.

Use CasesContent extracted from patent full text and abstract with AI.

  • Production of high-temperature-resistant components for energy technology (e.g., power plants)
  • Manufacture of furnace or kiln linings in metallurgy
  • Ceramic parts for the automotive industry (e.g., engine components, sensors)
  • Refractory linings for cement production facilities
  • Corrosion- and heat-resistant structures for chemical processing plants

BenefitsContent extracted from patent full text and abstract with AI.

  • Metal-free composition reduces corrosion and contamination risks in demanding environments
  • High percentage of coarse grains improves thermal shock resistance and durability at extreme temperatures
  • Material can be tailored for both shaped and unshaped components, increasing application versatility
  • Production process operates at relatively moderate sintering temperatures (above 800°C)
  • Suitable for multiple industries demanding high thermal, chemical, and mechanical resilience

Technical Classifications (CPCs)

Main Classifications

Chemistry & Materials Science

Sub Classifications

Cements, Concrete & Ceramics

CPC Codes

C04B35/50

Inventors & Applicants

Applicants

Technische Univ Bergakademie Freiberg Koerperschaft des Oeffentlichen Rechts

Patent Abstract

Die Erfindung betrifft einen metallfreien oxidhaltigen Keramikwerkstoff mit mindestens 10 Gew.-% La2O3-haltigen Phasen mit einem Grobkornanteil mit Korngrößen im Bereich von 100 µm bis 20 mm, wobei der Grobkornanteil einen Gewichtsanteil von mehr als 30 % der Materialzusammensetzung ausmacht. Die Herstellung des Keramikwerkstoffs erfolgt durch Bereitstellen eines La2O3-haltigen Grobkorns, Herstellen einer Mischung aus dem La2O2-haltigen Grobkornanteil mit einem keramischen Anteil, Formen des Gemenges zu einem Formkörper und anschließendem Sintern bei einer Temperatur oberhalb 800 °C. Aus dem Keramikwerkstoff können geformte oder ungeformte Erzeugnisse für die Energietechnik, die Metallurgie, die Automobilindustrie, die Zementindustrie und die chemische Industrie hergestellt werden.

Key Information

Publication No.

DE102020006598A1

Family ID

81077022

Publication Date

2022-04-28

Application No.

DE102020006598A

Application Date

2020-10-27

Priority Date

2020-10-27

Granted

No

Possible Cooperation

For further information please contact the transfer office.