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8.3: COMPOSITION OF CERAMICS AND ITS USES - Coggle Diagram
8.3: COMPOSITION OF CERAMICS AND ITS USES
earliest manufactutring substances in human civilisation
TYPES OF CERAMICS
Traditional Ceramics
Chemically Inert
acid
salt
water
Advanced Ceramics
have higher resistance
Superconductivity properties
Chemically Inert
Abrasion
Heat
Hard and Strong
MADE FROM ?
Traditional Ceramics
Kaolin
2H2O
2SiO2
Al2O3
Advanced Ceramics
inorganic compunds
oxides
Silicon & Tungsten Carbides
very strong and hard materials
SiC, WC
ZrO2 (Zirconia)
harder than steel
toughest
Si3N4
B4C (Boron Carbide)
extremely hard boron-carbon ceramics
USES
Traditional
Bricks
Pottery
Bowls
Tiles
Advanced
Brake Disc
withstand thermal shocks
Cutting Disc
Tungsten Carbide Ring
APPLICATION
Advanced
Medical
Bioceramics
Telecommunication
Technical ceramics
Transportation
Automotive ceramics
ICT
Conductive ceramics
Energy Fields
wear-resistance ceramics
PROPERTIES
Traditional
Do not conduct electricity (high dielectric strength)
electric insulator in high voltage
High melting point
Crubicles
Claypots
Heat Insulator
ovens
engine blocks
BASIC PROPERTIES OF CERAMICS
Electrical Insulator
Hard & Strong
Chemically Inert
Heat Insulator
Break Easily
High Thermal Resistance
Bonded by
covalent bonds
ionic bonds