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Questions and Answers
What is the primary function of silica in traditional ceramics?
What is the primary function of silica in traditional ceramics?
Which of the following is a characteristic of feldspar?
Which of the following is a characteristic of feldspar?
What is the general term for ceramics that include oxides, carbides, and nitrides?
What is the general term for ceramics that include oxides, carbides, and nitrides?
Which of the following is an example of oxide ceramics?
Which of the following is an example of oxide ceramics?
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What is the chemical formula for silica?
What is the chemical formula for silica?
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Which of the following is a characteristic of traditional ceramics?
Which of the following is a characteristic of traditional ceramics?
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What is the type of ceramic that includes carbides and nitrides?
What is the type of ceramic that includes carbides and nitrides?
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What is the chemical formula for feldspar?
What is the chemical formula for feldspar?
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Which of the following is not a type of traditional ceramic?
Which of the following is not a type of traditional ceramic?
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What is the primary function of feldspar in traditional ceramics?
What is the primary function of feldspar in traditional ceramics?
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Study Notes
NITRIDES and GLASS
- Glass has a high quantity of Silica (SiO2)
- Other ingredients are present in glass besides Silica
ELEMENTS RELATED TO CERAMICS
CARBON
- Graphite and Diamond are two forms of Carbon
SILICON
- Applications of Silicon:
- Used as a reducing agent in certain metallurgical processes
- Base material in semiconductor manufacturing in electronics
BORON
- No specific applications or properties mentioned
STRENGTH PROPERTIES OF CERAMICS
COMPRESSIVE STRENGTH IN CERAMICS
- Classification of composites based on Matrix:
- PMC – Polymer Matrix composites
- MMC – Metal Matrix composites
- CMC – Ceramic Matrix composites
- Functions of the Matrix Material:
- Protect phases from environment
- Transfer Stresses to phases
- Share load with secondary phase, in some cases deforming to bear stress
- Why Composites are Important:
- High strength-to-weight and stiffness-to-weight ratios
- Better fatigue properties than common engineering metals
- Higher toughness
- Resistance to corrosion
- Possible to achieve combinations of properties not attainable with metals, ceramics, or polymers alone
CLASSIFICATION BASED ON REINFORCEMENT
- Classification of composites based on reinforcement:
- Particle Reinforcement composites
- Structural Composites
- Fiber Reinforcement composites
- fiber reinforcement types:
- Continuous fibers with unidirectional aligned
- Discontinuous fiber and unidirectional aligned
- Discontinuous fiber and randomly oriented
PARTICLE REINFORCED COMPOSITE
- Characteristics:
- Cheapest and most widely used
- Fall into two categories based on particle size:
- Large-Particle Composites
- Dispersion-Strengthened Composites
- Examples:
- Concrete, ceramics, filled polymers
- TDNickel with 3% of Thoria
FELDSPAR
- A naturally occurring, industrially important, network silicate with a low melting temperature
- Becomes glass upon firing and bonds refractory components together
- Composition: K2O Al2O3 6SiO2
SILICA (SiO2)
- A polymorphic compound with various forms (quartz, tridymite, and cristobalite)
- Acts as the refractory component of traditional ceramics
CERAMICS
THREE BASIC CATEGORIES OF CERAMICS
- Traditional Ceramics
- New Ceramics
TRADITIONAL CERAMICS
- Examples:
- Clay
- Silica (SiO2)
- Alumina
NEW CERAMICS
- Examples:
- Oxide Ceramics
- Carbides
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Description
This quiz covers the basics of glass and nitrides, including their composition and properties.
