The document discusses advanced ceramics, highlighting various categories such as electro ceramics, magnetic ceramics, and structural ceramics, each with specific functionalities and applications. It covers specialized types like piezoelectric ceramics for sensors and actuators, and bio ceramics used in medical implants. Additionally, it addresses the classification of advanced ceramics based on composition, including nitrides, silicates, carbides, and oxides, detailing their industrial relevance and properties.

1. ADVANCED CERAMICS
Presented by Zain Ansari (F16MT27)

3. Advanced Ceramics
Electro ceramics
Electronic Substrate, Package
ceramics
Capacitor Dielectric,
Piezoelectric Ceramiics
Magnetic Ceramics
Optical Ceramics
Conductive Ceramics
Advanced structural Ceramics
Nuclear Ceramics
Bio Ceramics
Tribological (Wear-
Resistant) Ceramics
Automotive
Ceramics
Classification based on application

4. INTRODUCTION
• Advanced ceramics are ideally suited for industrial applications that
provide a physical interface between different
components due to their ability to withstand high
temperatures, vibration and mechanical shock.
• A type of ceramics exhibiting a high degree of
industrial efficiency.
• A type of ceramic used in specialized, recently
developed applications.
• Advanced ceramics often have simple chemical
compositions, but they are difficult to manufacture.

5. ELECTRO CERAMICS
• This is a class of ceramic materials used primarily for their electrical properities.
Further classified to:
• Dielectric ceramics
• Fast ion conductor ceramics
• Piezoelectric and ferroelectric ceramics

6. DIELECTRIC
CERAMICS
• Are capable of storing large amounts of
electrical charge in relatively small volumes.
• Is an electrical insulator that can be
polarized by an applied electric field.
• Dielectric materials can be solids, liquids,
or gases.
• Solid dielectrics are perhaps the most
commonly used dielectrics in electrical
engineering, and many solids are very good
insulators.

7. FAST ION CONDUCTOR CERAMICS
• Are solids in which ions are highly mobile. These
materials are important in the are of solid-state Ionics,
and are also known as solid electrolytes and superionic
conductors.
• These materials are useful in batteries and various
sensors. Fast ion conductors are used primarily in solid
oxide fuel cells.

8. PIEZOELECTRIC CERAMICS
• Piezoelectric ceramic materials are categorized as functional
ceramics.
• In sensors they make it possible to convert forces, pressures and
accelerations into electrical signals, and in sonic and ultrasonic
transducers and actuators they convert electric voltages into
vibrations or deformations.
• Piezo-ceramics have a wide range of uses Peizo-ceramics are used in
the automotive industry in a number of application such as in knock
and oil level sensors or as actuators for precise control of injection
processes in engines.
• In medical technology piezo-ceramic component can be found in
lithotripters, devices for plaque removal and in inhalers. Common
applications in mechanical engineering include ultrasonic cleaning,
ultrasonic welding and active vibration damping.

9. MAGNETIC CERAMICS
• Magnetic ceramics are made of ferrites, which are
crystalline minerals composed of iron oxide in
combination with some other metal. They are given the
general chemical formula M(fexOy) M representing other
metallic elements than iron. The most familiar ferrite is
magnetite, a naturally occurring ferrous ferrite ( Fe[Fe2O4],
or Fe3O4) commonly known as lodestone. The magnetic
properties of magnetite have been exploited in
compasses since ancient times.

10. OPTICAL CERAMICS
• Are polycrystalline materials produced through controlled
crystallization of base glass.
• Glass-ceramics materials share many properties with both
glasses and ceramics.
• Glass-ceramics have an amorphous phase and one or more
crystalline phase and are produced by a so called
controlled crystallization in contrast to a spontaneous
crystallization, which is usually not wanted in glass
manufacturing.
• Glass-ceramics have the fabrication advantage of glass as
well as special properties of ceramics.
• Glass ceramics has a variety of properties such as, high
strength, toughness, translucency or opacity, opalescence,
low or even negative thermal expansion, high temperature
stability.

11. ADVANCED STRUCTURAL CERAMICS
• Ceramics materials that
demonstrate enhanced
mechanical properties under
demanding condition. Because
they sere as structural members,
often being subjected to
mechanical loading, they are
given the name structural
ceramics. Ordinarily, for structural
applications ceramics tend to be
expensive replacements for other
materials, such as metals,
polymers, and composites.
Classified to :
o Nuclear Ceramics
o Bio ceramics
o Tribological Ceramics
o Automotive Ceramics

12. NUCLEAR CERAMICS
• Nuclear ceramics, ceramic
materials employed in the
generation of nuclear power and
in the disposal of radioactive
nuclear waste.
The image shows a vitrification process or
encapsulating nuclear waste in glass is a
possible method of containing nuclear
wastes.

13. BIO CERAMICS
• Ceramics products or components employed in medical and dental
applications, mainly as implants and replacements.
• Bio ceramics range in biocompatibility from the ceramic oxides, which are
inert in the body, to the other extreme of resorbable materials, which are
eventually replaced by the materials which they were used to repair

14. TRIBOLOGICAL CERAMICS
• Tribological Ceramics, also called wear-resistant
ceramics, ceramics material that are resistant ot friction
and wear. They are employed in a variety of industrial
and domestic application including mineral processing
and metallurgy.

15. AUTOMOTIVE CERAMICS
• Automotive ceramics, advanced ceramic
materials that are made into components for
automobiles. It powerful physical and thermal
and electrical properties make it reliable highly
durable and cost effective alternative to metal

16. CLASSIFICATION OF ADVANCED
CERAMICS BASED ON COMPOSITION
Advanced
Ceramics
Nitrides Ceramics Silicate Ceramics
Carbides
Ceramics
Oxide Ceramics

17. NITRIDE CERAMICS
• Nitrides used in ceramics consist of nitrogen atoms bonded to elemnets such
as silicon and aluminum

18. SILICATE CERAMICS
• Silicates are materials composed generally of silicon and oxygen. Silicate ceramic
components are sed in electronics and electrical engineering and act as electrical
insulation in fuses, circuits breakers, thermostats and in lighting technology. The
ability of silicate ceramics materials to provide thermal insulation is also utilized in
heating, environmental and thermal engineering applications.

19. CARBIDE CERAMICS
Carbide ceramics are extremely resistant again high temperature, abrasion and
corrosion. They have a high thermal and variable electrical conductivity, and are
mainly used in mechanical engineering, microelectronics as well as space engineering.

20. OXIDE CERAMICS
• An Oxide is a chemical compound made up of oxygen combined with at least one
other element. Most of the Earth’s crust consists of oxids
Types
• Aluminum Oxide Al2O3
• Megnisium Oxide MgO
• Zirconium Oxide ZrO3
• Aluminum Titanite Al2O3.TiO2
• Lead Zirconate Titanate